MondrianLayout – Build Information

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Build Information

Failed to build MondrianLayout, reference main (b26eda), with Swift 6.2 (beta) for watchOS using Xcode 26.0 on 19 Jun 2025 17:07:31 UTC.

Build Command

env DEVELOPER_DIR=/Applications/Xcode-26.0.0-Beta.app xcrun xcodebuild -IDEClonedSourcePackagesDirPathOverride=$PWD/.dependencies -skipMacroValidation -skipPackagePluginValidation -derivedDataPath $PWD/.derivedData build -scheme MondrianLayout-Package -destination generic/platform=watchOS

Build Log

typedef float UILayoutPriority NS_TYPED_EXTENSIBLE_ENUM API_UNAVAILABLE(watchos);
              ^
/Users/admin/builder/spi-builder-workspace/MondrianLayout/Descriptors/DimensionDescriptor.swift:21:41: error: 'UIView' is unavailable in watchOS
  public func makeConstraints(for view: UIView) -> [NSLayoutConstraint] {
                                        ^~~~~~
/Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS26.0.sdk/System/Library/Frameworks/UIKit.framework/Headers/UIView.h:147:12: note: 'UIView' has been explicitly marked unavailable here
@interface UIView : UIResponder <NSCoding, UIAppearance, UIAppearanceContainer, UIDynamicItem, UITraitEnvironment, UICoordinateSpace, UIFocusItem, UIFocusItemContainer, CALayerDelegate>
           ^
/Users/admin/builder/spi-builder-workspace/MondrianLayout/Descriptors/DimensionDescriptor.swift:21:53: error: 'NSLayoutConstraint' is unavailable in watchOS
  public func makeConstraints(for view: UIView) -> [NSLayoutConstraint] {
                                                    ^~~~~~~~~~~~~~~~~~
/Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS26.0.sdk/System/Library/Frameworks/UIKit.framework/Headers/NSLayoutConstraint.h:126:12: note: 'NSLayoutConstraint' has been explicitly marked unavailable here
@interface NSLayoutConstraint : NSObject
           ^
/Users/admin/builder/spi-builder-workspace/MondrianLayout/Descriptors/DimensionDescriptor.swift:25:48: error: 'UILayoutGuide' is unavailable in watchOS
  public func makeConstraints(for layoutGuide: UILayoutGuide) -> [NSLayoutConstraint] {
                                               ^~~~~~~~~~~~~
/Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS26.0.sdk/System/Library/Frameworks/UIKit.framework/Headers/UILayoutGuide.h:24:12: note: 'UILayoutGuide' has been explicitly marked unavailable here
@interface UILayoutGuide : NSObject <NSCoding>
           ^
/Users/admin/builder/spi-builder-workspace/MondrianLayout/Descriptors/DimensionDescriptor.swift:25:67: error: 'NSLayoutConstraint' is unavailable in watchOS
  public func makeConstraints(for layoutGuide: UILayoutGuide) -> [NSLayoutConstraint] {
                                                                  ^~~~~~~~~~~~~~~~~~
/Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS26.0.sdk/System/Library/Frameworks/UIKit.framework/Headers/NSLayoutConstraint.h:126:12: note: 'NSLayoutConstraint' has been explicitly marked unavailable here
@interface NSLayoutConstraint : NSObject
           ^
/Users/admin/builder/spi-builder-workspace/MondrianLayout/Descriptors/DimensionDescriptor.swift:29:54: error: 'NSLayoutConstraint' is unavailable in watchOS
  func makeConstraints(for view: _LayoutElement) -> [NSLayoutConstraint] {
                                                     ^~~~~~~~~~~~~~~~~~
/Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS26.0.sdk/System/Library/Frameworks/UIKit.framework/Headers/NSLayoutConstraint.h:126:12: note: 'NSLayoutConstraint' has been explicitly marked unavailable here
@interface NSLayoutConstraint : NSObject
           ^
/Users/admin/builder/spi-builder-workspace/MondrianLayout/Descriptors/DimensionDescriptor.swift:112:55: error: 'UILayoutPriority' is unavailable in watchOS
  public func aspectRatio(_ ratio: CGFloat, priority: UILayoutPriority = .required) -> Self {
                                                      ^~~~~~~~~~~~~~~~
/Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS26.0.sdk/System/Library/Frameworks/UIKit.framework/Headers/NSLayoutConstraint.h:17:15: note: 'UILayoutPriority' has been explicitly marked unavailable here
typedef float UILayoutPriority NS_TYPED_EXTENSIBLE_ENUM API_UNAVAILABLE(watchos);
              ^
/Users/admin/builder/spi-builder-workspace/MondrianLayout/Descriptors/DimensionDescriptor.swift:112:75: error: 'required' is unavailable in watchOS
  public func aspectRatio(_ ratio: CGFloat, priority: UILayoutPriority = .required) -> Self {
                                                                          ^~~~~~~~
/Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS26.0.sdk/System/Library/Frameworks/UIKit.framework/Headers/NSLayoutConstraint.h:18:31: note: 'required' has been explicitly marked unavailable here
static const UILayoutPriority UILayoutPriorityRequired API_AVAILABLE(ios(6.0)) API_UNAVAILABLE(watchos) = 1000; // A required constraint.  Do not exceed this.
                              ^
/Users/admin/builder/spi-builder-workspace/MondrianLayout/Descriptors/DimensionDescriptor.swift:207:46: error: 'UILayoutPriority' is unavailable in watchOS
  public func size(_ size: CGSize, priority: UILayoutPriority = .required) -> Self {
                                             ^~~~~~~~~~~~~~~~
/Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS26.0.sdk/System/Library/Frameworks/UIKit.framework/Headers/NSLayoutConstraint.h:17:15: note: 'UILayoutPriority' has been explicitly marked unavailable here
typedef float UILayoutPriority NS_TYPED_EXTENSIBLE_ENUM API_UNAVAILABLE(watchos);
              ^
/Users/admin/builder/spi-builder-workspace/MondrianLayout/Descriptors/DimensionDescriptor.swift:207:66: error: 'required' is unavailable in watchOS
  public func size(_ size: CGSize, priority: UILayoutPriority = .required) -> Self {
                                                                 ^~~~~~~~
/Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS26.0.sdk/System/Library/Frameworks/UIKit.framework/Headers/NSLayoutConstraint.h:18:31: note: 'required' has been explicitly marked unavailable here
static const UILayoutPriority UILayoutPriorityRequired API_AVAILABLE(ios(6.0)) API_UNAVAILABLE(watchos) = 1000; // A required constraint.  Do not exceed this.
                              ^
/Users/admin/builder/spi-builder-workspace/MondrianLayout/Descriptors/DimensionDescriptor.swift:217:49: error: 'UILayoutPriority' is unavailable in watchOS
  public func size(_ length: CGFloat, priority: UILayoutPriority = .required) -> Self {
                                                ^~~~~~~~~~~~~~~~
/Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS26.0.sdk/System/Library/Frameworks/UIKit.framework/Headers/NSLayoutConstraint.h:17:15: note: 'UILayoutPriority' has been explicitly marked unavailable here
typedef float UILayoutPriority NS_TYPED_EXTENSIBLE_ENUM API_UNAVAILABLE(watchos);
              ^
/Users/admin/builder/spi-builder-workspace/MondrianLayout/Descriptors/DimensionDescriptor.swift:217:69: error: 'required' is unavailable in watchOS
  public func size(_ length: CGFloat, priority: UILayoutPriority = .required) -> Self {
                                                                    ^~~~~~~~
/Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS26.0.sdk/System/Library/Frameworks/UIKit.framework/Headers/NSLayoutConstraint.h:18:31: note: 'required' has been explicitly marked unavailable here
static const UILayoutPriority UILayoutPriorityRequired API_AVAILABLE(ios(6.0)) API_UNAVAILABLE(watchos) = 1000; // A required constraint.  Do not exceed this.
                              ^
/Users/admin/builder/spi-builder-workspace/MondrianLayout/Descriptors/LayoutBuilderContext.swift:11:31: error: 'UIView' is unavailable in watchOS
  public weak var targetView: UIView?
                              ^~~~~~
/Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS26.0.sdk/System/Library/Frameworks/UIKit.framework/Headers/UIView.h:147:12: note: 'UIView' has been explicitly marked unavailable here
@interface UIView : UIResponder <NSCoding, UIAppearance, UIAppearanceContainer, UIDynamicItem, UITraitEnvironment, UICoordinateSpace, UIFocusItem, UIFocusItemContainer, CALayerDelegate>
           ^
/Users/admin/builder/spi-builder-workspace/MondrianLayout/Descriptors/LayoutBuilderContext.swift:17:17: error: 'UIView' is unavailable in watchOS
    targetView: UIView
                ^~~~~~
/Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS26.0.sdk/System/Library/Frameworks/UIKit.framework/Headers/UIView.h:147:12: note: 'UIView' has been explicitly marked unavailable here
@interface UIView : UIResponder <NSCoding, UIAppearance, UIAppearanceContainer, UIDynamicItem, UITraitEnvironment, UICoordinateSpace, UIFocusItem, UIFocusItemContainer, CALayerDelegate>
           ^
/Users/admin/builder/spi-builder-workspace/MondrianLayout/Descriptors/LayoutBuilderContext.swift:23:49: error: 'UILayoutGuide' is unavailable in watchOS
  public private(set) var managedLayoutGuides: [UILayoutGuide] = []
                                                ^~~~~~~~~~~~~
/Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS26.0.sdk/System/Library/Frameworks/UIKit.framework/Headers/UILayoutGuide.h:24:12: note: 'UILayoutGuide' has been explicitly marked unavailable here
@interface UILayoutGuide : NSObject <NSCoding>
           ^
/Users/admin/builder/spi-builder-workspace/MondrianLayout/Descriptors/LayoutBuilderContext.swift:24:41: error: 'NSLayoutConstraint' is unavailable in watchOS
  public private(set) var constraints: [NSLayoutConstraint] = []
                                        ^~~~~~~~~~~~~~~~~~
/Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS26.0.sdk/System/Library/Frameworks/UIKit.framework/Headers/NSLayoutConstraint.h:126:12: note: 'NSLayoutConstraint' has been explicitly marked unavailable here
@interface NSLayoutConstraint : NSObject
           ^
/Users/admin/builder/spi-builder-workspace/MondrianLayout/Descriptors/LayoutBuilderContext.swift:29:26: error: 'NSLayoutConstraint' is unavailable in watchOS
  func add(constraints: [NSLayoutConstraint]) {
                         ^~~~~~~~~~~~~~~~~~
/Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS26.0.sdk/System/Library/Frameworks/UIKit.framework/Headers/NSLayoutConstraint.h:126:12: note: 'NSLayoutConstraint' has been explicitly marked unavailable here
@interface NSLayoutConstraint : NSObject
           ^
/Users/admin/builder/spi-builder-workspace/MondrianLayout/Descriptors/LayoutBuilderContext.swift:33:47: error: 'UILayoutGuide' is unavailable in watchOS
  func makeLayoutGuide(identifier: String) -> UILayoutGuide {
                                              ^~~~~~~~~~~~~
/Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS26.0.sdk/System/Library/Frameworks/UIKit.framework/Headers/UILayoutGuide.h:24:12: note: 'UILayoutGuide' has been explicitly marked unavailable here
@interface UILayoutGuide : NSObject <NSCoding>
           ^
/Users/admin/builder/spi-builder-workspace/MondrianLayout/Descriptors/VHStackContentBuilder.swift:161:55: error: 'UILayoutGuide' is unavailable in watchOS
  public static func buildExpression(_ layoutGuides: [UILayoutGuide]...) -> [Component] {
                                                      ^~~~~~~~~~~~~
/Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS26.0.sdk/System/Library/Frameworks/UIKit.framework/Headers/UILayoutGuide.h:24:12: note: 'UILayoutGuide' has been explicitly marked unavailable here
@interface UILayoutGuide : NSObject <NSCoding>
           ^
/Users/admin/builder/spi-builder-workspace/MondrianLayout/Descriptors/VHStackContentBuilder.swift:167:51: error: 'UILayoutGuide' is unavailable in watchOS
  public static func buildExpression<LayoutGuide: UILayoutGuide>(_ layoutGuide: LayoutGuide) -> [Component] {
                                                  ^~~~~~~~~~~~~
/Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS26.0.sdk/System/Library/Frameworks/UIKit.framework/Headers/UILayoutGuide.h:24:12: note: 'UILayoutGuide' has been explicitly marked unavailable here
@interface UILayoutGuide : NSObject <NSCoding>
           ^
/Users/admin/builder/spi-builder-workspace/MondrianLayout/Descriptors/VHStackContentBuilder.swift:173:51: error: 'UILayoutGuide' is unavailable in watchOS
  public static func buildExpression<LayoutGuide: UILayoutGuide>(_ layoutGuide: LayoutGuide?) -> [Component] {
                                                  ^~~~~~~~~~~~~
/Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS26.0.sdk/System/Library/Frameworks/UIKit.framework/Headers/UILayoutGuide.h:24:12: note: 'UILayoutGuide' has been explicitly marked unavailable here
@interface UILayoutGuide : NSObject <NSCoding>
           ^
/Users/admin/builder/spi-builder-workspace/MondrianLayout/Descriptors/VHStackContentBuilder.swift:178:48: error: 'UIView' is unavailable in watchOS
  public static func buildExpression(_ views: [UIView]...) -> [Component] {
                                               ^~~~~~
/Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS26.0.sdk/System/Library/Frameworks/UIKit.framework/Headers/UIView.h:147:12: note: 'UIView' has been explicitly marked unavailable here
@interface UIView : UIResponder <NSCoding, UIAppearance, UIAppearanceContainer, UIDynamicItem, UITraitEnvironment, UICoordinateSpace, UIFocusItem, UIFocusItemContainer, CALayerDelegate>
           ^
/Users/admin/builder/spi-builder-workspace/MondrianLayout/Descriptors/VHStackContentBuilder.swift:184:44: error: 'UIView' is unavailable in watchOS
  public static func buildExpression<View: UIView>(_ view: View) -> [Component] {
                                           ^~~~~~
/Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS26.0.sdk/System/Library/Frameworks/UIKit.framework/Headers/UIView.h:147:12: note: 'UIView' has been explicitly marked unavailable here
@interface UIView : UIResponder <NSCoding, UIAppearance, UIAppearanceContainer, UIDynamicItem, UITraitEnvironment, UICoordinateSpace, UIFocusItem, UIFocusItemContainer, CALayerDelegate>
           ^
/Users/admin/builder/spi-builder-workspace/MondrianLayout/Descriptors/VHStackContentBuilder.swift:190:44: error: 'UIView' is unavailable in watchOS
  public static func buildExpression<View: UIView>(_ view: View?) -> [Component] {
                                           ^~~~~~
/Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS26.0.sdk/System/Library/Frameworks/UIKit.framework/Headers/UIView.h:147:12: note: 'UIView' has been explicitly marked unavailable here
@interface UIView : UIResponder <NSCoding, UIAppearance, UIAppearanceContainer, UIDynamicItem, UITraitEnvironment, UICoordinateSpace, UIFocusItem, UIFocusItemContainer, CALayerDelegate>
           ^
/Users/admin/builder/spi-builder-workspace/MondrianLayout/Descriptors/VHStackContentBuilder.swift:239:48: error: 'UIView' is unavailable in watchOS
  public static func buildExpression(_ views: [UIView]...) -> [Component] {
                                               ^~~~~~
/Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS26.0.sdk/System/Library/Frameworks/UIKit.framework/Headers/UIView.h:147:12: note: 'UIView' has been explicitly marked unavailable here
@interface UIView : UIResponder <NSCoding, UIAppearance, UIAppearanceContainer, UIDynamicItem, UITraitEnvironment, UICoordinateSpace, UIFocusItem, UIFocusItemContainer, CALayerDelegate>
           ^
/Users/admin/builder/spi-builder-workspace/MondrianLayout/Descriptors/VHStackContentBuilder.swift:245:44: error: 'UIView' is unavailable in watchOS
  public static func buildExpression<View: UIView>(_ view: View) -> [Component] {
                                           ^~~~~~
/Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS26.0.sdk/System/Library/Frameworks/UIKit.framework/Headers/UIView.h:147:12: note: 'UIView' has been explicitly marked unavailable here
@interface UIView : UIResponder <NSCoding, UIAppearance, UIAppearanceContainer, UIDynamicItem, UITraitEnvironment, UICoordinateSpace, UIFocusItem, UIFocusItemContainer, CALayerDelegate>
           ^
/Users/admin/builder/spi-builder-workspace/MondrianLayout/Descriptors/VHStackContentBuilder.swift:251:44: error: 'UIView' is unavailable in watchOS
  public static func buildExpression<View: UIView>(_ view: View?) -> [Component] {
                                           ^~~~~~
/Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS26.0.sdk/System/Library/Frameworks/UIKit.framework/Headers/UIView.h:147:12: note: 'UIView' has been explicitly marked unavailable here
@interface UIView : UIResponder <NSCoding, UIAppearance, UIAppearanceContainer, UIDynamicItem, UITraitEnvironment, UICoordinateSpace, UIFocusItem, UIFocusItemContainer, CALayerDelegate>
           ^
/Users/admin/builder/spi-builder-workspace/MondrianLayout/Descriptors/_LayoutBlockNode.swift:38:34: error: 'UIView' is unavailable in watchOS
  public func background(_ view: UIView) -> BackgroundBlock {
                                 ^~~~~~
/Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS26.0.sdk/System/Library/Frameworks/UIKit.framework/Headers/UIView.h:147:12: note: 'UIView' has been explicitly marked unavailable here
@interface UIView : UIResponder <NSCoding, UIAppearance, UIAppearanceContainer, UIDynamicItem, UITraitEnvironment, UICoordinateSpace, UIFocusItem, UIFocusItemContainer, CALayerDelegate>
           ^
/Users/admin/builder/spi-builder-workspace/MondrianLayout/Descriptors/_LayoutBlockNode.swift:46:31: error: 'UIView' is unavailable in watchOS
  public func overlay(_ view: UIView) -> OverlayBlock {
                              ^~~~~~
/Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS26.0.sdk/System/Library/Frameworks/UIKit.framework/Headers/UIView.h:147:12: note: 'UIView' has been explicitly marked unavailable here
@interface UIView : UIResponder <NSCoding, UIAppearance, UIAppearanceContainer, UIDynamicItem, UITraitEnvironment, UICoordinateSpace, UIFocusItem, UIFocusItemContainer, CALayerDelegate>
           ^
/Users/admin/builder/spi-builder-workspace/MondrianLayout/EntryPoint.swift:61:14: error: 'UIView' is unavailable in watchOS
    on view: UIView,
             ^~~~~~
/Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS26.0.sdk/System/Library/Frameworks/UIKit.framework/Headers/UIView.h:147:12: note: 'UIView' has been explicitly marked unavailable here
@interface UIView : UIResponder <NSCoding, UIAppearance, UIAppearanceContainer, UIDynamicItem, UITraitEnvironment, UICoordinateSpace, UIFocusItem, UIFocusItemContainer, CALayerDelegate>
           ^
/Users/admin/builder/spi-builder-workspace/MondrianLayout/Extensions/NSLayoutConstraint+.swift:6:51: error: 'NSLayoutConstraint' is unavailable in watchOS
  func setInternalIdentifier(_ string: String) -> NSLayoutConstraint {
                                                  ^~~~~~~~~~~~~~~~~~
/Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS26.0.sdk/System/Library/Frameworks/UIKit.framework/Headers/NSLayoutConstraint.h:126:12: note: 'NSLayoutConstraint' has been explicitly marked unavailable here
@interface NSLayoutConstraint : NSObject
           ^
/Users/admin/builder/spi-builder-workspace/MondrianLayout/Extensions/NSLayoutConstraint+.swift:12:43: error: 'NSLayoutConstraint' is unavailable in watchOS
  func setIdentifier(_ string: String) -> NSLayoutConstraint {
                                          ^~~~~~~~~~~~~~~~~~
/Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS26.0.sdk/System/Library/Frameworks/UIKit.framework/Headers/NSLayoutConstraint.h:126:12: note: 'NSLayoutConstraint' has been explicitly marked unavailable here
@interface NSLayoutConstraint : NSObject
           ^
/Users/admin/builder/spi-builder-workspace/MondrianLayout/Extensions/NSLayoutConstraint+.swift:18:32: error: 'UILayoutPriority' is unavailable in watchOS
  func setPriority(_ priority: UILayoutPriority) -> NSLayoutConstraint {
                               ^~~~~~~~~~~~~~~~
/Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS26.0.sdk/System/Library/Frameworks/UIKit.framework/Headers/NSLayoutConstraint.h:17:15: note: 'UILayoutPriority' has been explicitly marked unavailable here
typedef float UILayoutPriority NS_TYPED_EXTENSIBLE_ENUM API_UNAVAILABLE(watchos);
              ^
/Users/admin/builder/spi-builder-workspace/MondrianLayout/Extensions/NSLayoutConstraint+.swift:18:53: error: 'NSLayoutConstraint' is unavailable in watchOS
  func setPriority(_ priority: UILayoutPriority) -> NSLayoutConstraint {
                                                    ^~~~~~~~~~~~~~~~~~
/Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS26.0.sdk/System/Library/Frameworks/UIKit.framework/Headers/NSLayoutConstraint.h:126:12: note: 'NSLayoutConstraint' has been explicitly marked unavailable here
@interface NSLayoutConstraint : NSObject
           ^
/Users/admin/builder/spi-builder-workspace/MondrianLayout/Extensions/NSLayoutConstraint+.swift:3:11: error: 'NSLayoutConstraint' is unavailable in watchOS
extension NSLayoutConstraint {
          ^~~~~~~~~~~~~~~~~~
/Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS26.0.sdk/System/Library/Frameworks/UIKit.framework/Headers/NSLayoutConstraint.h:126:12: note: 'NSLayoutConstraint' has been explicitly marked unavailable here
@interface NSLayoutConstraint : NSObject
           ^
/Users/admin/builder/spi-builder-workspace/MondrianLayout/Extensions/UILayoutGuide+Mondrian.swift:5:42: error: 'UILayoutGuide' is unavailable in watchOS
  public var mondrian: MondrianNamespace<UILayoutGuide> {
                                         ^~~~~~~~~~~~~
/Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS26.0.sdk/System/Library/Frameworks/UIKit.framework/Headers/UILayoutGuide.h:24:12: note: 'UILayoutGuide' has been explicitly marked unavailable here
@interface UILayoutGuide : NSObject <NSCoding>
           ^
/Users/admin/builder/spi-builder-workspace/MondrianLayout/Extensions/UILayoutGuide+Mondrian.swift:3:11: error: 'UILayoutGuide' is unavailable in watchOS
extension UILayoutGuide {
          ^~~~~~~~~~~~~
/Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS26.0.sdk/System/Library/Frameworks/UIKit.framework/Headers/UILayoutGuide.h:24:12: note: 'UILayoutGuide' has been explicitly marked unavailable here
@interface UILayoutGuide : NSObject <NSCoding>
           ^
/Users/admin/builder/spi-builder-workspace/MondrianLayout/Extensions/UIView+Mondrian.swift:37:42: error: 'UIView' is unavailable in watchOS
extension MondrianNamespace where Base : UIView {
                                         ^~~~~~
/Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS26.0.sdk/System/Library/Frameworks/UIKit.framework/Headers/UIView.h:147:12: note: 'UIView' has been explicitly marked unavailable here
@interface UIView : UIResponder <NSCoding, UIAppearance, UIAppearanceContainer, UIDynamicItem, UITraitEnvironment, UICoordinateSpace, UIFocusItem, UIFocusItemContainer, CALayerDelegate>
           ^
/Users/admin/builder/spi-builder-workspace/MondrianLayout/Extensions/UIView+Mondrian.swift:63:42: error: 'UIView' is unavailable in watchOS
  public var mondrian: MondrianNamespace<UIView> {
                                         ^~~~~~
/Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS26.0.sdk/System/Library/Frameworks/UIKit.framework/Headers/UIView.h:147:12: note: 'UIView' has been explicitly marked unavailable here
@interface UIView : UIResponder <NSCoding, UIAppearance, UIAppearanceContainer, UIDynamicItem, UITraitEnvironment, UICoordinateSpace, UIFocusItem, UIFocusItemContainer, CALayerDelegate>
           ^
/Users/admin/builder/spi-builder-workspace/MondrianLayout/Extensions/UIView+Mondrian.swift:61:11: error: 'UIView' is unavailable in watchOS
extension UIView {
          ^~~~~~
/Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS26.0.sdk/System/Library/Frameworks/UIKit.framework/Headers/UIView.h:147:12: note: 'UIView' has been explicitly marked unavailable here
@interface UIView : UIResponder <NSCoding, UIAppearance, UIAppearanceContainer, UIDynamicItem, UITraitEnvironment, UICoordinateSpace, UIFocusItem, UIFocusItemContainer, CALayerDelegate>
           ^
/Users/admin/builder/spi-builder-workspace/MondrianLayout/Extensions/UIView+Mondrian.swift:71:11: error: 'UIView' is unavailable in watchOS
extension UIView {
          ^~~~~~
/Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS26.0.sdk/System/Library/Frameworks/UIKit.framework/Headers/UIView.h:147:12: note: 'UIView' has been explicitly marked unavailable here
@interface UIView : UIResponder <NSCoding, UIAppearance, UIAppearanceContainer, UIDynamicItem, UITraitEnvironment, UICoordinateSpace, UIFocusItem, UIFocusItemContainer, CALayerDelegate>
           ^
/Users/admin/builder/spi-builder-workspace/MondrianLayout/Internal/_LayoutElement.swift:9:11: error: 'UIView' is unavailable in watchOS
extension UIView: __LayoutElementConvertible {
          ^~~~~~
/Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS26.0.sdk/System/Library/Frameworks/UIKit.framework/Headers/UIView.h:147:12: note: 'UIView' has been explicitly marked unavailable here
@interface UIView : UIResponder <NSCoding, UIAppearance, UIAppearanceContainer, UIDynamicItem, UITraitEnvironment, UICoordinateSpace, UIFocusItem, UIFocusItemContainer, CALayerDelegate>
           ^
/Users/admin/builder/spi-builder-workspace/MondrianLayout/Internal/_LayoutElement.swift:16:11: error: 'UILayoutGuide' is unavailable in watchOS
extension UILayoutGuide: __LayoutElementConvertible {
          ^~~~~~~~~~~~~
/Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS26.0.sdk/System/Library/Frameworks/UIKit.framework/Headers/UILayoutGuide.h:24:12: note: 'UILayoutGuide' has been explicitly marked unavailable here
@interface UILayoutGuide : NSObject <NSCoding>
           ^
/Users/admin/builder/spi-builder-workspace/MondrianLayout/Internal/_LayoutElement.swift:51:22: error: 'NSLayoutXAxisAnchor' is unavailable in watchOS
  let leadingAnchor: NSLayoutXAxisAnchor
                     ^~~~~~~~~~~~~~~~~~~
/Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS26.0.sdk/System/Library/Frameworks/UIKit.framework/Headers/NSLayoutAnchor.h:64:12: note: 'NSLayoutXAxisAnchor' has been explicitly marked unavailable here
@interface NSLayoutXAxisAnchor : NSLayoutAnchor<NSLayoutXAxisAnchor *>
           ^
/Users/admin/builder/spi-builder-workspace/MondrianLayout/Internal/_LayoutElement.swift:52:23: error: 'NSLayoutXAxisAnchor' is unavailable in watchOS
  let trailingAnchor: NSLayoutXAxisAnchor
                      ^~~~~~~~~~~~~~~~~~~
/Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS26.0.sdk/System/Library/Frameworks/UIKit.framework/Headers/NSLayoutAnchor.h:64:12: note: 'NSLayoutXAxisAnchor' has been explicitly marked unavailable here
@interface NSLayoutXAxisAnchor : NSLayoutAnchor<NSLayoutXAxisAnchor *>
           ^
/Users/admin/builder/spi-builder-workspace/MondrianLayout/Internal/_LayoutElement.swift:53:19: error: 'NSLayoutXAxisAnchor' is unavailable in watchOS
  let leftAnchor: NSLayoutXAxisAnchor
                  ^~~~~~~~~~~~~~~~~~~
/Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS26.0.sdk/System/Library/Frameworks/UIKit.framework/Headers/NSLayoutAnchor.h:64:12: note: 'NSLayoutXAxisAnchor' has been explicitly marked unavailable here
@interface NSLayoutXAxisAnchor : NSLayoutAnchor<NSLayoutXAxisAnchor *>
           ^
/Users/admin/builder/spi-builder-workspace/MondrianLayout/Internal/_LayoutElement.swift:54:20: error: 'NSLayoutXAxisAnchor' is unavailable in watchOS
  let rightAnchor: NSLayoutXAxisAnchor
                   ^~~~~~~~~~~~~~~~~~~
/Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS26.0.sdk/System/Library/Frameworks/UIKit.framework/Headers/NSLayoutAnchor.h:64:12: note: 'NSLayoutXAxisAnchor' has been explicitly marked unavailable here
@interface NSLayoutXAxisAnchor : NSLayoutAnchor<NSLayoutXAxisAnchor *>
           ^
/Users/admin/builder/spi-builder-workspace/MondrianLayout/Internal/_LayoutElement.swift:55:18: error: 'NSLayoutYAxisAnchor' is unavailable in watchOS
  let topAnchor: NSLayoutYAxisAnchor
                 ^~~~~~~~~~~~~~~~~~~
/Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS26.0.sdk/System/Library/Frameworks/UIKit.framework/Headers/NSLayoutAnchor.h:72:12: note: 'NSLayoutYAxisAnchor' has been explicitly marked unavailable here
@interface NSLayoutYAxisAnchor : NSLayoutAnchor<NSLayoutYAxisAnchor *>
           ^
/Users/admin/builder/spi-builder-workspace/MondrianLayout/Internal/_LayoutElement.swift:56:21: error: 'NSLayoutYAxisAnchor' is unavailable in watchOS
  let bottomAnchor: NSLayoutYAxisAnchor
                    ^~~~~~~~~~~~~~~~~~~
/Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS26.0.sdk/System/Library/Frameworks/UIKit.framework/Headers/NSLayoutAnchor.h:72:12: note: 'NSLayoutYAxisAnchor' has been explicitly marked unavailable here
@interface NSLayoutYAxisAnchor : NSLayoutAnchor<NSLayoutYAxisAnchor *>
           ^
/Users/admin/builder/spi-builder-workspace/MondrianLayout/Internal/_LayoutElement.swift:57:20: error: 'NSLayoutDimension' is unavailable in watchOS
  let widthAnchor: NSLayoutDimension
                   ^~~~~~~~~~~~~~~~~
/Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS26.0.sdk/System/Library/Frameworks/UIKit.framework/Headers/NSLayoutAnchor.h:81:12: note: 'NSLayoutDimension' has been explicitly marked unavailable here
@interface NSLayoutDimension : NSLayoutAnchor<NSLayoutDimension *>
           ^
/Users/admin/builder/spi-builder-workspace/MondrianLayout/Internal/_LayoutElement.swift:58:21: error: 'NSLayoutDimension' is unavailable in watchOS
  let heightAnchor: NSLayoutDimension
                    ^~~~~~~~~~~~~~~~~
/Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS26.0.sdk/System/Library/Frameworks/UIKit.framework/Headers/NSLayoutAnchor.h:81:12: note: 'NSLayoutDimension' has been explicitly marked unavailable here
@interface NSLayoutDimension : NSLayoutAnchor<NSLayoutDimension *>
           ^
/Users/admin/builder/spi-builder-workspace/MondrianLayout/Internal/_LayoutElement.swift:59:22: error: 'NSLayoutXAxisAnchor' is unavailable in watchOS
  let centerXAnchor: NSLayoutXAxisAnchor
                     ^~~~~~~~~~~~~~~~~~~
/Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS26.0.sdk/System/Library/Frameworks/UIKit.framework/Headers/NSLayoutAnchor.h:64:12: note: 'NSLayoutXAxisAnchor' has been explicitly marked unavailable here
@interface NSLayoutXAxisAnchor : NSLayoutAnchor<NSLayoutXAxisAnchor *>
           ^
/Users/admin/builder/spi-builder-workspace/MondrianLayout/Internal/_LayoutElement.swift:60:22: error: 'NSLayoutYAxisAnchor' is unavailable in watchOS
  let centerYAnchor: NSLayoutYAxisAnchor
                     ^~~~~~~~~~~~~~~~~~~
/Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS26.0.sdk/System/Library/Frameworks/UIKit.framework/Headers/NSLayoutAnchor.h:72:12: note: 'NSLayoutYAxisAnchor' has been explicitly marked unavailable here
@interface NSLayoutYAxisAnchor : NSLayoutAnchor<NSLayoutYAxisAnchor *>
           ^
/Users/admin/builder/spi-builder-workspace/MondrianLayout/Internal/_LayoutElement.swift:62:19: error: 'UIView' is unavailable in watchOS
  var owningView: UIView? {
                  ^~~~~~
/Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS26.0.sdk/System/Library/Frameworks/UIKit.framework/Headers/UIView.h:147:12: note: 'UIView' has been explicitly marked unavailable here
@interface UIView : UIResponder <NSCoding, UIAppearance, UIAppearanceContainer, UIDynamicItem, UITraitEnvironment, UICoordinateSpace, UIFocusItem, UIFocusItemContainer, CALayerDelegate>
           ^
/Users/admin/builder/spi-builder-workspace/MondrianLayout/Internal/_LayoutElement.swift:66:13: error: 'UIView' is unavailable in watchOS
  let view: UIView?
            ^~~~~~
/Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS26.0.sdk/System/Library/Frameworks/UIKit.framework/Headers/UIView.h:147:12: note: 'UIView' has been explicitly marked unavailable here
@interface UIView : UIResponder <NSCoding, UIAppearance, UIAppearanceContainer, UIDynamicItem, UITraitEnvironment, UICoordinateSpace, UIFocusItem, UIFocusItemContainer, CALayerDelegate>
           ^
/Users/admin/builder/spi-builder-workspace/MondrianLayout/Internal/_LayoutElement.swift:67:20: error: 'UILayoutGuide' is unavailable in watchOS
  let layoutGuide: UILayoutGuide?
                   ^~~~~~~~~~~~~
/Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS26.0.sdk/System/Library/Frameworks/UIKit.framework/Headers/UILayoutGuide.h:24:12: note: 'UILayoutGuide' has been explicitly marked unavailable here
@interface UILayoutGuide : NSObject <NSCoding>
           ^
/Users/admin/builder/spi-builder-workspace/MondrianLayout/Internal/_LayoutElement.swift:69:21: error: 'UIView' is unavailable in watchOS
  public init(view: UIView) {
                    ^~~~~~
/Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS26.0.sdk/System/Library/Frameworks/UIKit.framework/Headers/UIView.h:147:12: note: 'UIView' has been explicitly marked unavailable here
@interface UIView : UIResponder <NSCoding, UIAppearance, UIAppearanceContainer, UIDynamicItem, UITraitEnvironment, UICoordinateSpace, UIFocusItem, UIFocusItemContainer, CALayerDelegate>
           ^
/Users/admin/builder/spi-builder-workspace/MondrianLayout/Internal/_LayoutElement.swift:86:28: error: 'UILayoutGuide' is unavailable in watchOS
  public init(layoutGuide: UILayoutGuide) {
                           ^~~~~~~~~~~~~
/Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS26.0.sdk/System/Library/Frameworks/UIKit.framework/Headers/UILayoutGuide.h:24:12: note: 'UILayoutGuide' has been explicitly marked unavailable here
@interface UILayoutGuide : NSObject <NSCoding>
           ^
/Users/admin/builder/spi-builder-workspace/MondrianLayout/Internal/_LayoutElement.swift:104:39: error: 'NSLayoutXAxisAnchor' is unavailable in watchOS
  func anchor(_ type: XAxisAnchor) -> NSLayoutXAxisAnchor {
                                      ^~~~~~~~~~~~~~~~~~~
/Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS26.0.sdk/System/Library/Frameworks/UIKit.framework/Headers/NSLayoutAnchor.h:64:12: note: 'NSLayoutXAxisAnchor' has been explicitly marked unavailable here
@interface NSLayoutXAxisAnchor : NSLayoutAnchor<NSLayoutXAxisAnchor *>
           ^
/Users/admin/builder/spi-builder-workspace/MondrianLayout/Internal/_LayoutElement.swift:119:39: error: 'NSLayoutYAxisAnchor' is unavailable in watchOS
  func anchor(_ type: YAxisAnchor) -> NSLayoutYAxisAnchor {
                                      ^~~~~~~~~~~~~~~~~~~
/Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS26.0.sdk/System/Library/Frameworks/UIKit.framework/Headers/NSLayoutAnchor.h:72:12: note: 'NSLayoutYAxisAnchor' has been explicitly marked unavailable here
@interface NSLayoutYAxisAnchor : NSLayoutAnchor<NSLayoutYAxisAnchor *>
           ^
/Users/admin/builder/spi-builder-workspace/MondrianLayout/Internal/_LayoutElement.swift:130:43: error: 'NSLayoutDimension' is unavailable in watchOS
  func anchor(_ type: DimensionAnchor) -> NSLayoutDimension {
                                          ^~~~~~~~~~~~~~~~~
/Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS26.0.sdk/System/Library/Frameworks/UIKit.framework/Headers/NSLayoutAnchor.h:81:12: note: 'NSLayoutDimension' has been explicitly marked unavailable here
@interface NSLayoutDimension : NSLayoutAnchor<NSLayoutDimension *>
           ^
/Users/admin/builder/spi-builder-workspace/MondrianLayout/LayoutBlocks/LayoutContainer.swift:63:33: error: 'UIView' is unavailable in watchOS
  func setupConstraints(parent: UIView, in context: LayoutBuilderContext) {
                                ^~~~~~
/Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS26.0.sdk/System/Library/Frameworks/UIKit.framework/Headers/UIView.h:147:12: note: 'UIView' has been explicitly marked unavailable here
@interface UIView : UIResponder <NSCoding, UIAppearance, UIAppearanceContainer, UIDynamicItem, UITraitEnvironment, UICoordinateSpace, UIFocusItem, UIFocusItemContainer, CALayerDelegate>
           ^
/Users/admin/builder/spi-builder-workspace/MondrianLayout/LayoutBlocks/LayoutGuideBlock.swift:13:27: error: 'UILayoutGuide' is unavailable in watchOS
  public let layoutGuide: UILayoutGuide
                          ^~~~~~~~~~~~~
/Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS26.0.sdk/System/Library/Frameworks/UIKit.framework/Headers/UILayoutGuide.h:24:12: note: 'UILayoutGuide' has been explicitly marked unavailable here
@interface UILayoutGuide : NSObject <NSCoding>
           ^
/Users/admin/builder/spi-builder-workspace/MondrianLayout/LayoutBlocks/LayoutGuideBlock.swift:18:20: error: 'UILayoutGuide' is unavailable in watchOS
    _ layoutGuide: UILayoutGuide
                   ^~~~~~~~~~~~~
/Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS26.0.sdk/System/Library/Frameworks/UIKit.framework/Headers/UILayoutGuide.h:24:12: note: 'UILayoutGuide' has been explicitly marked unavailable here
@interface UILayoutGuide : NSObject <NSCoding>
           ^
/Users/admin/builder/spi-builder-workspace/MondrianLayout/LayoutBlocks/LayoutGuideBlock.swift:23:61: error: 'NSLayoutConstraint' is unavailable in watchOS
  func makeConstraintsToEdge(_ element: _LayoutElement) -> [NSLayoutConstraint] {
                                                            ^~~~~~~~~~~~~~~~~~
/Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS26.0.sdk/System/Library/Frameworks/UIKit.framework/Headers/NSLayoutConstraint.h:126:12: note: 'NSLayoutConstraint' has been explicitly marked unavailable here
@interface NSLayoutConstraint : NSObject
           ^
/Users/admin/builder/spi-builder-workspace/MondrianLayout/LayoutBlocks/LayoutGuideBlock.swift:27:30: error: 'NSLayoutConstraint' is unavailable in watchOS
  func makeConstraints() -> [NSLayoutConstraint] {
                             ^~~~~~~~~~~~~~~~~~
/Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS26.0.sdk/System/Library/Frameworks/UIKit.framework/Headers/NSLayoutConstraint.h:126:12: note: 'NSLayoutConstraint' has been explicitly marked unavailable here
@interface NSLayoutConstraint : NSObject
           ^
/Users/admin/builder/spi-builder-workspace/MondrianLayout/LayoutBlocks/VGridBlock.swift:271:48: error: 'UIView' is unavailable in watchOS
  public static func buildExpression(_ views: [UIView]...) -> [Component] {
                                               ^~~~~~
/Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS26.0.sdk/System/Library/Frameworks/UIKit.framework/Headers/UIView.h:147:12: note: 'UIView' has been explicitly marked unavailable here
@interface UIView : UIResponder <NSCoding, UIAppearance, UIAppearanceContainer, UIDynamicItem, UITraitEnvironment, UICoordinateSpace, UIFocusItem, UIFocusItemContainer, CALayerDelegate>
           ^
/Users/admin/builder/spi-builder-workspace/MondrianLayout/LayoutBlocks/VGridBlock.swift:277:44: error: 'UIView' is unavailable in watchOS
  public static func buildExpression<View: UIView>(_ view: View) -> [Component] {
                                           ^~~~~~
/Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS26.0.sdk/System/Library/Frameworks/UIKit.framework/Headers/UIView.h:147:12: note: 'UIView' has been explicitly marked unavailable here
@interface UIView : UIResponder <NSCoding, UIAppearance, UIAppearanceContainer, UIDynamicItem, UITraitEnvironment, UICoordinateSpace, UIFocusItem, UIFocusItemContainer, CALayerDelegate>
           ^
/Users/admin/builder/spi-builder-workspace/MondrianLayout/LayoutBlocks/VGridBlock.swift:283:44: error: 'UIView' is unavailable in watchOS
  public static func buildExpression<View: UIView>(_ view: View?) -> [Component] {
                                           ^~~~~~
/Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS26.0.sdk/System/Library/Frameworks/UIKit.framework/Headers/UIView.h:147:12: note: 'UIView' has been explicitly marked unavailable here
@interface UIView : UIResponder <NSCoding, UIAppearance, UIAppearanceContainer, UIDynamicItem, UITraitEnvironment, UICoordinateSpace, UIFocusItem, UIFocusItemContainer, CALayerDelegate>
           ^
/Users/admin/builder/spi-builder-workspace/MondrianLayout/LayoutBlocks/ViewBlock.swift:26:20: error: 'UIView' is unavailable in watchOS
  public let view: UIView
                   ^~~~~~
/Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS26.0.sdk/System/Library/Frameworks/UIKit.framework/Headers/UIView.h:147:12: note: 'UIView' has been explicitly marked unavailable here
@interface UIView : UIResponder <NSCoding, UIAppearance, UIAppearanceContainer, UIDynamicItem, UITraitEnvironment, UICoordinateSpace, UIFocusItem, UIFocusItemContainer, CALayerDelegate>
           ^
/Users/admin/builder/spi-builder-workspace/MondrianLayout/LayoutBlocks/ViewBlock.swift:30:32: error: 'UILayoutPriority' is unavailable in watchOS
  var verticalHuggingPriority: UILayoutPriority?
                               ^~~~~~~~~~~~~~~~
/Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS26.0.sdk/System/Library/Frameworks/UIKit.framework/Headers/NSLayoutConstraint.h:17:15: note: 'UILayoutPriority' has been explicitly marked unavailable here
typedef float UILayoutPriority NS_TYPED_EXTENSIBLE_ENUM API_UNAVAILABLE(watchos);
              ^
/Users/admin/builder/spi-builder-workspace/MondrianLayout/LayoutBlocks/ViewBlock.swift:31:34: error: 'UILayoutPriority' is unavailable in watchOS
  var horizontalHuggingPriority: UILayoutPriority?
                                 ^~~~~~~~~~~~~~~~
/Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS26.0.sdk/System/Library/Frameworks/UIKit.framework/Headers/NSLayoutConstraint.h:17:15: note: 'UILayoutPriority' has been explicitly marked unavailable here
typedef float UILayoutPriority NS_TYPED_EXTENSIBLE_ENUM API_UNAVAILABLE(watchos);
              ^
/Users/admin/builder/spi-builder-workspace/MondrianLayout/LayoutBlocks/ViewBlock.swift:33:46: error: 'UILayoutPriority' is unavailable in watchOS
  var verticalCompressionResistancePriority: UILayoutPriority?
                                             ^~~~~~~~~~~~~~~~
/Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS26.0.sdk/System/Library/Frameworks/UIKit.framework/Headers/NSLayoutConstraint.h:17:15: note: 'UILayoutPriority' has been explicitly marked unavailable here
typedef float UILayoutPriority NS_TYPED_EXTENSIBLE_ENUM API_UNAVAILABLE(watchos);
              ^
/Users/admin/builder/spi-builder-workspace/MondrianLayout/LayoutBlocks/ViewBlock.swift:34:48: error: 'UILayoutPriority' is unavailable in watchOS
  var horizontalCompressionResistancePriority: UILayoutPriority?
                                               ^~~~~~~~~~~~~~~~
/Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS26.0.sdk/System/Library/Frameworks/UIKit.framework/Headers/NSLayoutConstraint.h:17:15: note: 'UILayoutPriority' has been explicitly marked unavailable here
typedef float UILayoutPriority NS_TYPED_EXTENSIBLE_ENUM API_UNAVAILABLE(watchos);
              ^
/Users/admin/builder/spi-builder-workspace/MondrianLayout/LayoutBlocks/ViewBlock.swift:37:13: error: 'UIView' is unavailable in watchOS
    _ view: UIView
            ^~~~~~
/Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS26.0.sdk/System/Library/Frameworks/UIKit.framework/Headers/UIView.h:147:12: note: 'UIView' has been explicitly marked unavailable here
@interface UIView : UIResponder <NSCoding, UIAppearance, UIAppearanceContainer, UIDynamicItem, UITraitEnvironment, UICoordinateSpace, UIFocusItem, UIFocusItemContainer, CALayerDelegate>
           ^
/Users/admin/builder/spi-builder-workspace/MondrianLayout/LayoutBlocks/ViewBlock.swift:50:17: error: 'UILayoutPriority' is unavailable in watchOS
    _ priority: UILayoutPriority = .required
                ^~~~~~~~~~~~~~~~
/Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS26.0.sdk/System/Library/Frameworks/UIKit.framework/Headers/NSLayoutConstraint.h:17:15: note: 'UILayoutPriority' has been explicitly marked unavailable here
typedef float UILayoutPriority NS_TYPED_EXTENSIBLE_ENUM API_UNAVAILABLE(watchos);
              ^
/Users/admin/builder/spi-builder-workspace/MondrianLayout/LayoutBlocks/ViewBlock.swift:50:37: error: 'required' is unavailable in watchOS
    _ priority: UILayoutPriority = .required
                                    ^~~~~~~~
/Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS26.0.sdk/System/Library/Frameworks/UIKit.framework/Headers/NSLayoutConstraint.h:18:31: note: 'required' has been explicitly marked unavailable here
static const UILayoutPriority UILayoutPriorityRequired API_AVAILABLE(ios(6.0)) API_UNAVAILABLE(watchos) = 1000; // A required constraint.  Do not exceed this.
                              ^
/Users/admin/builder/spi-builder-workspace/MondrianLayout/LayoutBlocks/ViewBlock.swift:64:17: error: 'UILayoutPriority' is unavailable in watchOS
    _ priority: UILayoutPriority = .required
                ^~~~~~~~~~~~~~~~
/Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS26.0.sdk/System/Library/Frameworks/UIKit.framework/Headers/NSLayoutConstraint.h:17:15: note: 'UILayoutPriority' has been explicitly marked unavailable here
typedef float UILayoutPriority NS_TYPED_EXTENSIBLE_ENUM API_UNAVAILABLE(watchos);
              ^
/Users/admin/builder/spi-builder-workspace/MondrianLayout/LayoutBlocks/ViewBlock.swift:64:37: error: 'required' is unavailable in watchOS
    _ priority: UILayoutPriority = .required
                                    ^~~~~~~~
/Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS26.0.sdk/System/Library/Frameworks/UIKit.framework/Headers/NSLayoutConstraint.h:18:31: note: 'required' has been explicitly marked unavailable here
static const UILayoutPriority UILayoutPriorityRequired API_AVAILABLE(ios(6.0)) API_UNAVAILABLE(watchos) = 1000; // A required constraint.  Do not exceed this.
                              ^
/Users/admin/builder/spi-builder-workspace/MondrianLayout/LayoutBlocks/ViewBlock.swift:76:61: error: 'NSLayoutConstraint' is unavailable in watchOS
  func makeConstraintsToEdge(_ element: _LayoutElement) -> [NSLayoutConstraint] {
                                                            ^~~~~~~~~~~~~~~~~~
/Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS26.0.sdk/System/Library/Frameworks/UIKit.framework/Headers/NSLayoutConstraint.h:126:12: note: 'NSLayoutConstraint' has been explicitly marked unavailable here
@interface NSLayoutConstraint : NSObject
           ^
/Users/admin/builder/spi-builder-workspace/MondrianLayout/LayoutBlocks/ViewBlock.swift:108:30: error: 'NSLayoutConstraint' is unavailable in watchOS
  func makeConstraints() -> [NSLayoutConstraint] {
                             ^~~~~~~~~~~~~~~~~~
/Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS26.0.sdk/System/Library/Frameworks/UIKit.framework/Headers/NSLayoutConstraint.h:126:12: note: 'NSLayoutConstraint' has been explicitly marked unavailable here
@interface NSLayoutConstraint : NSObject
           ^
/Users/admin/builder/spi-builder-workspace/MondrianLayout/LayoutBlocks/ZStackBlock.swift:271:55: error: 'UILayoutGuide' is unavailable in watchOS
  public static func buildExpression(_ layoutGuides: [UILayoutGuide]...) -> [Component] {
                                                      ^~~~~~~~~~~~~
/Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS26.0.sdk/System/Library/Frameworks/UIKit.framework/Headers/UILayoutGuide.h:24:12: note: 'UILayoutGuide' has been explicitly marked unavailable here
@interface UILayoutGuide : NSObject <NSCoding>
           ^
/Users/admin/builder/spi-builder-workspace/MondrianLayout/LayoutBlocks/ZStackBlock.swift:277:51: error: 'UILayoutGuide' is unavailable in watchOS
  public static func buildExpression<LayoutGuide: UILayoutGuide>(_ layoutGuide: LayoutGuide) -> [Component] {
                                                  ^~~~~~~~~~~~~
/Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS26.0.sdk/System/Library/Frameworks/UIKit.framework/Headers/UILayoutGuide.h:24:12: note: 'UILayoutGuide' has been explicitly marked unavailable here
@interface UILayoutGuide : NSObject <NSCoding>
           ^
/Users/admin/builder/spi-builder-workspace/MondrianLayout/LayoutBlocks/ZStackBlock.swift:283:51: error: 'UILayoutGuide' is unavailable in watchOS
  public static func buildExpression<LayoutGuide: UILayoutGuide>(_ layoutGuide: LayoutGuide?) -> [Component] {
                                                  ^~~~~~~~~~~~~
/Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS26.0.sdk/System/Library/Frameworks/UIKit.framework/Headers/UILayoutGuide.h:24:12: note: 'UILayoutGuide' has been explicitly marked unavailable here
@interface UILayoutGuide : NSObject <NSCoding>
           ^
/Users/admin/builder/spi-builder-workspace/MondrianLayout/LayoutBlocks/ZStackBlock.swift:288:48: error: 'UIView' is unavailable in watchOS
  public static func buildExpression(_ views: [UIView]...) -> [Component] {
                                               ^~~~~~
/Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS26.0.sdk/System/Library/Frameworks/UIKit.framework/Headers/UIView.h:147:12: note: 'UIView' has been explicitly marked unavailable here
@interface UIView : UIResponder <NSCoding, UIAppearance, UIAppearanceContainer, UIDynamicItem, UITraitEnvironment, UICoordinateSpace, UIFocusItem, UIFocusItemContainer, CALayerDelegate>
           ^
/Users/admin/builder/spi-builder-workspace/MondrianLayout/LayoutBlocks/ZStackBlock.swift:294:44: error: 'UIView' is unavailable in watchOS
  public static func buildExpression<View: UIView>(_ view: View) -> [Component] {
                                           ^~~~~~
/Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS26.0.sdk/System/Library/Frameworks/UIKit.framework/Headers/UIView.h:147:12: note: 'UIView' has been explicitly marked unavailable here
@interface UIView : UIResponder <NSCoding, UIAppearance, UIAppearanceContainer, UIDynamicItem, UITraitEnvironment, UICoordinateSpace, UIFocusItem, UIFocusItemContainer, CALayerDelegate>
           ^
/Users/admin/builder/spi-builder-workspace/MondrianLayout/LayoutBlocks/ZStackBlock.swift:300:44: error: 'UIView' is unavailable in watchOS
  public static func buildExpression<View: UIView>(_ view: View?) -> [Component] {
                                           ^~~~~~
/Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS26.0.sdk/System/Library/Frameworks/UIKit.framework/Headers/UIView.h:147:12: note: 'UIView' has been explicitly marked unavailable here
@interface UIView : UIResponder <NSCoding, UIAppearance, UIAppearanceContainer, UIDynamicItem, UITraitEnvironment, UICoordinateSpace, UIFocusItem, UIFocusItemContainer, CALayerDelegate>
           ^
/Users/admin/builder/spi-builder-workspace/MondrianLayout/Manager/LayoutManager.swift:31:32: error: 'UIView' is unavailable in watchOS
  private weak var targetView: UIView?
                               ^~~~~~
/Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS26.0.sdk/System/Library/Frameworks/UIKit.framework/Headers/UIView.h:147:12: note: 'UIView' has been explicitly marked unavailable here
@interface UIView : UIResponder <NSCoding, UIAppearance, UIAppearanceContainer, UIDynamicItem, UITraitEnvironment, UICoordinateSpace, UIFocusItem, UIFocusItemContainer, CALayerDelegate>
           ^
/Users/admin/builder/spi-builder-workspace/MondrianLayout/Manager/LayoutManager.swift:43:14: error: 'UIView' is unavailable in watchOS
    on view: UIView,
             ^~~~~~
/Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS26.0.sdk/System/Library/Frameworks/UIKit.framework/Headers/UIView.h:147:12: note: 'UIView' has been explicitly marked unavailable here
@interface UIView : UIResponder <NSCoding, UIAppearance, UIAppearanceContainer, UIDynamicItem, UITraitEnvironment, UICoordinateSpace, UIFocusItem, UIFocusItemContainer, CALayerDelegate>
           ^
/Users/admin/builder/spi-builder-workspace/MondrianLayout/MondrianNamespace.swift:12:41: error: 'UIView' is unavailable in watchOS
extension MondrianNamespace where Base: UIView {
                                        ^~~~~~
/Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS26.0.sdk/System/Library/Frameworks/UIKit.framework/Headers/UIView.h:147:12: note: 'UIView' has been explicitly marked unavailable here
@interface UIView : UIResponder <NSCoding, UIAppearance, UIAppearanceContainer, UIDynamicItem, UITraitEnvironment, UICoordinateSpace, UIFocusItem, UIFocusItemContainer, CALayerDelegate>
           ^
/Users/admin/builder/spi-builder-workspace/MondrianLayout/MondrianNamespace.swift:37:41: error: 'UILayoutGuide' is unavailable in watchOS
extension MondrianNamespace where Base: UILayoutGuide {
                                        ^~~~~~~~~~~~~
/Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS26.0.sdk/System/Library/Frameworks/UIKit.framework/Headers/UILayoutGuide.h:24:12: note: 'UILayoutGuide' has been explicitly marked unavailable here
@interface UILayoutGuide : NSObject <NSCoding>
           ^
SwiftEmitModule normal arm64_32 Emitting\ module\ for\ MondrianLayout (in target 'MondrianLayout' from project 'MondrianLayout')
EmitSwiftModule normal arm64_32 (in target 'MondrianLayout' from project 'MondrianLayout')
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode

SwiftEmitModule normal arm64 Emitting\ module\ for\ MondrianLayout (in target 'MondrianLayout' from project 'MondrianLayout')
** BUILD FAILED **
The following build commands failed:
	SwiftEmitModule normal armv7k Emitting\ module\ for\ MondrianLayout (in target 'MondrianLayout' from project 'MondrianLayout')
	EmitSwiftModule normal armv7k (in target 'MondrianLayout' from project 'MondrianLayout')
	Building workspace spi-builder-workspace with scheme MondrianLayout-Package
(3 failures)
Command line invocation:
    /Applications/Xcode-26.0.0-Beta.app/Contents/Developer/usr/bin/xcodebuild -IDEClonedSourcePackagesDirPathOverride=/Users/admin/builder/spi-builder-workspace/.dependencies -resolvePackageDependencies
Resolve Package Graph
Resolved source packages:
  MondrianLayout: /Users/admin/builder/spi-builder-workspace
resolved source packages: MondrianLayout
{
  "dependencies" : [
  ],
  "manifest_display_name" : "MondrianLayout",
  "name" : "MondrianLayout",
  "path" : "/Users/admin/builder/spi-builder-workspace",
  "platforms" : [
    {
      "name" : "ios",
      "version" : "12.0"
    }
  ],
  "products" : [
    {
      "name" : "MondrianLayout",
      "targets" : [
        "MondrianLayout"
      ],
      "type" : {
        "library" : [
          "static"
        ]
      }
    },
    {
      "name" : "MondrianLayoutDynamic",
      "targets" : [
        "MondrianLayout"
      ],
      "type" : {
        "library" : [
          "dynamic"
        ]
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "MondrianLayout",
      "module_type" : "SwiftTarget",
      "name" : "MondrianLayout",
      "path" : "MondrianLayout",
      "product_memberships" : [
        "MondrianLayout",
        "MondrianLayoutDynamic"
      ],
      "sources" : [
        "Classic/LayoutDescriptor.swift",
        "Classic/MondrianArrayBuilder.swift",
        "Descriptors/DimensionDescriptor.swift",
        "Descriptors/Edge.swift",
        "Descriptors/LayoutBuilderContext.swift",
        "Descriptors/Optimization.swift",
        "Descriptors/VHStackContentBuilder.swift",
        "Descriptors/_LayoutBlockNode.swift",
        "Descriptors/_LayoutBlockType.swift",
        "EntryPoint.swift",
        "Extensions/NSLayoutConstraint+.swift",
        "Extensions/UILayoutGuide+Mondrian.swift",
        "Extensions/UIView+Mondrian.swift",
        "Internal/Utils.swift",
        "Internal/_LayoutElement.swift",
        "LayoutBlocks/BackgroundBlock.swift",
        "LayoutBlocks/HStackBlock.swift",
        "LayoutBlocks/LayoutContainer.swift",
        "LayoutBlocks/LayoutGuideBlock.swift",
        "LayoutBlocks/OverlayBlock.swift",
        "LayoutBlocks/RelativeBlock.swift",
        "LayoutBlocks/StackingSpacer.swift",
        "LayoutBlocks/VGridBlock.swift",
        "LayoutBlocks/VStackBlock.swift",
        "LayoutBlocks/ViewBlock.swift",
        "LayoutBlocks/ZStackBlock.swift",
        "Manager/LayoutManager.swift",
        "MondrianNamespace.swift"
      ],
      "type" : "library"
    }
  ],
  "tools_version" : "5.3"
}
{
  "workspace" : {
    "name" : "spi-builder-workspace",
    "schemes" : [
      "MondrianLayout",
      "MondrianLayout-Package",
      "MondrianLayoutDynamic"
    ]
  }
}
Running build ...
env DEVELOPER_DIR=/Applications/Xcode-26.0.0-Beta.app xcrun xcodebuild -IDEClonedSourcePackagesDirPathOverride=$PWD/.dependencies -skipMacroValidation -skipPackagePluginValidation -derivedDataPath $PWD/.derivedData build -scheme MondrianLayout-Package -destination generic/platform=watchOS
Command line invocation:
    /Applications/Xcode-26.0.0-Beta.app/Contents/Developer/usr/bin/xcodebuild -IDEClonedSourcePackagesDirPathOverride=/Users/admin/builder/spi-builder-workspace/.dependencies -skipMacroValidation -skipPackagePluginValidation -derivedDataPath /Users/admin/builder/spi-builder-workspace/.derivedData build -scheme MondrianLayout-Package -destination generic/platform=watchOS
Resolve Package Graph
Resolved source packages:
  MondrianLayout: /Users/admin/builder/spi-builder-workspace
ComputePackagePrebuildTargetDependencyGraph
Prepare packages
CreateBuildRequest
SendProjectDescription
CreateBuildOperation
ComputeTargetDependencyGraph
note: Building targets in dependency order
note: Target dependency graph (3 targets)
    Target 'MondrianLayoutDynamic' in project 'MondrianLayout'
        ➜ Explicit dependency on target 'MondrianLayout' in project 'MondrianLayout'
    Target 'MondrianLayout' in project 'MondrianLayout'
        ➜ Explicit dependency on target 'MondrianLayout' in project 'MondrianLayout'
    Target 'MondrianLayout' in project 'MondrianLayout' (no dependencies)
GatherProvisioningInputs
CreateBuildDescription
ClangStatCache /Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang-stat-cache /Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS26.0.sdk /Users/admin/builder/spi-builder-workspace/.derivedData/SDKStatCaches.noindex/watchos26.0-23R5280j-041894b46d26f03ea1587ab1cb6ac97e.sdkstatcache
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode
    /Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang-stat-cache /Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS26.0.sdk -o /Users/admin/builder/spi-builder-workspace/.derivedData/SDKStatCaches.noindex/watchos26.0-23R5280j-041894b46d26f03ea1587ab1cb6ac97e.sdkstatcache
SwiftDriver MondrianLayout normal armv7k com.apple.xcode.tools.swift.compiler (in target 'MondrianLayout' from project 'MondrianLayout')
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode
    builtin-SwiftDriver -- /Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/swiftc -module-name MondrianLayout -Onone -enforce-exclusivity\=checked @/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/MondrianLayout.build/Debug-watchos/MondrianLayout.build/Objects-normal/armv7k/MondrianLayout.SwiftFileList -DSWIFT_PACKAGE -DDEBUG -DSWIFT_MODULE_RESOURCE_BUNDLE_UNAVAILABLE -DXcode -plugin-path /Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/lib/swift/host/plugins/testing -enable-experimental-feature DebugDescriptionMacro -sdk /Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS26.0.sdk -target armv7k-apple-watchos5.0 -g -module-cache-path /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex -Xfrontend -serialize-debugging-options -enable-testing -index-store-path /Users/admin/builder/spi-builder-workspace/.derivedData/Index.noindex/DataStore -swift-version 5 -I /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug-watchos -I /Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/WatchOS.platform/Developer/usr/lib -F /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug-watchos -F /Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/WatchOS.platform/Developer/Library/Frameworks -F /Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS26.0.sdk/Developer/Library/Frameworks -c -j10 -enable-batch-mode -incremental -Xcc -ivfsstatcache -Xcc /Users/admin/builder/spi-builder-workspace/.derivedData/SDKStatCaches.noindex/watchos26.0-23R5280j-041894b46d26f03ea1587ab1cb6ac97e.sdkstatcache -output-file-map /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/MondrianLayout.build/Debug-watchos/MondrianLayout.build/Objects-normal/armv7k/MondrianLayout-OutputFileMap.json -use-frontend-parseable-output -save-temps -no-color-diagnostics -explicit-module-build -module-cache-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftExplicitPrecompiledModules -clang-scanner-module-cache-path /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex -sdk-module-cache-path /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex -serialize-diagnostics -emit-dependencies -emit-module -emit-module-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/MondrianLayout.build/Debug-watchos/MondrianLayout.build/Objects-normal/armv7k/MondrianLayout.swiftmodule -validate-clang-modules-once -clang-build-session-file /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex/Session.modulevalidation -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/MondrianLayout.build/Debug-watchos/MondrianLayout.build/swift-overrides.hmap -emit-const-values -Xfrontend -const-gather-protocols-file -Xfrontend /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/MondrianLayout.build/Debug-watchos/MondrianLayout.build/Objects-normal/armv7k/MondrianLayout_const_extract_protocols.json -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug-watchos/include -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/MondrianLayout.build/Debug-watchos/MondrianLayout.build/DerivedSources-normal/armv7k -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/MondrianLayout.build/Debug-watchos/MondrianLayout.build/DerivedSources/armv7k -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/MondrianLayout.build/Debug-watchos/MondrianLayout.build/DerivedSources -Xcc -DSWIFT_PACKAGE -Xcc -DDEBUG\=1 -emit-objc-header -emit-objc-header-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/MondrianLayout.build/Debug-watchos/MondrianLayout.build/Objects-normal/armv7k/MondrianLayout-Swift.h -working-directory /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode -experimental-emit-module-separately -disable-cmo
SwiftDriver MondrianLayout normal arm64_32 com.apple.xcode.tools.swift.compiler (in target 'MondrianLayout' from project 'MondrianLayout')
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode
    builtin-SwiftDriver -- /Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/swiftc -module-name MondrianLayout -Onone -enforce-exclusivity\=checked @/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/MondrianLayout.build/Debug-watchos/MondrianLayout.build/Objects-normal/arm64_32/MondrianLayout.SwiftFileList -DSWIFT_PACKAGE -DDEBUG -DSWIFT_MODULE_RESOURCE_BUNDLE_UNAVAILABLE -DXcode -plugin-path /Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/lib/swift/host/plugins/testing -enable-experimental-feature DebugDescriptionMacro -sdk /Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS26.0.sdk -target arm64_32-apple-watchos5.0 -g -module-cache-path /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex -Xfrontend -serialize-debugging-options -enable-testing -index-store-path /Users/admin/builder/spi-builder-workspace/.derivedData/Index.noindex/DataStore -swift-version 5 -I /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug-watchos -I /Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/WatchOS.platform/Developer/usr/lib -F /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug-watchos -F /Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/WatchOS.platform/Developer/Library/Frameworks -F /Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS26.0.sdk/Developer/Library/Frameworks -c -j10 -enable-batch-mode -incremental -Xcc -ivfsstatcache -Xcc /Users/admin/builder/spi-builder-workspace/.derivedData/SDKStatCaches.noindex/watchos26.0-23R5280j-041894b46d26f03ea1587ab1cb6ac97e.sdkstatcache -output-file-map /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/MondrianLayout.build/Debug-watchos/MondrianLayout.build/Objects-normal/arm64_32/MondrianLayout-OutputFileMap.json -use-frontend-parseable-output -save-temps -no-color-diagnostics -explicit-module-build -module-cache-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftExplicitPrecompiledModules -clang-scanner-module-cache-path /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex -sdk-module-cache-path /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex -serialize-diagnostics -emit-dependencies -emit-module -emit-module-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/MondrianLayout.build/Debug-watchos/MondrianLayout.build/Objects-normal/arm64_32/MondrianLayout.swiftmodule -validate-clang-modules-once -clang-build-session-file /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex/Session.modulevalidation -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/MondrianLayout.build/Debug-watchos/MondrianLayout.build/swift-overrides.hmap -emit-const-values -Xfrontend -const-gather-protocols-file -Xfrontend /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/MondrianLayout.build/Debug-watchos/MondrianLayout.build/Objects-normal/arm64_32/MondrianLayout_const_extract_protocols.json -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug-watchos/include -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/MondrianLayout.build/Debug-watchos/MondrianLayout.build/DerivedSources-normal/arm64_32 -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/MondrianLayout.build/Debug-watchos/MondrianLayout.build/DerivedSources/arm64_32 -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/MondrianLayout.build/Debug-watchos/MondrianLayout.build/DerivedSources -Xcc -DSWIFT_PACKAGE -Xcc -DDEBUG\=1 -emit-objc-header -emit-objc-header-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/MondrianLayout.build/Debug-watchos/MondrianLayout.build/Objects-normal/arm64_32/MondrianLayout-Swift.h -working-directory /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode -experimental-emit-module-separately -disable-cmo
SwiftDriver MondrianLayout normal arm64 com.apple.xcode.tools.swift.compiler (in target 'MondrianLayout' from project 'MondrianLayout')
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode
    builtin-SwiftDriver -- /Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/swiftc -module-name MondrianLayout -Onone -enforce-exclusivity\=checked @/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/MondrianLayout.build/Debug-watchos/MondrianLayout.build/Objects-normal/arm64/MondrianLayout.SwiftFileList -DSWIFT_PACKAGE -DDEBUG -DSWIFT_MODULE_RESOURCE_BUNDLE_UNAVAILABLE -DXcode -plugin-path /Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/lib/swift/host/plugins/testing -enable-experimental-feature DebugDescriptionMacro -sdk /Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS26.0.sdk -target arm64-apple-watchos5.0 -g -module-cache-path /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex -Xfrontend -serialize-debugging-options -enable-testing -index-store-path /Users/admin/builder/spi-builder-workspace/.derivedData/Index.noindex/DataStore -swift-version 5 -I /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug-watchos -I /Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/WatchOS.platform/Developer/usr/lib -F /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug-watchos -F /Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/WatchOS.platform/Developer/Library/Frameworks -F /Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS26.0.sdk/Developer/Library/Frameworks -c -j10 -enable-batch-mode -incremental -Xcc -ivfsstatcache -Xcc /Users/admin/builder/spi-builder-workspace/.derivedData/SDKStatCaches.noindex/watchos26.0-23R5280j-041894b46d26f03ea1587ab1cb6ac97e.sdkstatcache -output-file-map /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/MondrianLayout.build/Debug-watchos/MondrianLayout.build/Objects-normal/arm64/MondrianLayout-OutputFileMap.json -use-frontend-parseable-output -save-temps -no-color-diagnostics -explicit-module-build -module-cache-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftExplicitPrecompiledModules -clang-scanner-module-cache-path /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex -sdk-module-cache-path /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex -serialize-diagnostics -emit-dependencies -emit-module -emit-module-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/MondrianLayout.build/Debug-watchos/MondrianLayout.build/Objects-normal/arm64/MondrianLayout.swiftmodule -validate-clang-modules-once -clang-build-session-file /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex/Session.modulevalidation -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/MondrianLayout.build/Debug-watchos/MondrianLayout.build/swift-overrides.hmap -emit-const-values -Xfrontend -const-gather-protocols-file -Xfrontend /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/MondrianLayout.build/Debug-watchos/MondrianLayout.build/Objects-normal/arm64/MondrianLayout_const_extract_protocols.json -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug-watchos/include -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/MondrianLayout.build/Debug-watchos/MondrianLayout.build/DerivedSources-normal/arm64 -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/MondrianLayout.build/Debug-watchos/MondrianLayout.build/DerivedSources/arm64 -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/MondrianLayout.build/Debug-watchos/MondrianLayout.build/DerivedSources -Xcc -DSWIFT_PACKAGE -Xcc -DDEBUG\=1 -emit-objc-header -emit-objc-header-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/MondrianLayout.build/Debug-watchos/MondrianLayout.build/Objects-normal/arm64/MondrianLayout-Swift.h -working-directory /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode -experimental-emit-module-separately -disable-cmo
SwiftCompile normal arm64 Compiling\ VHStackContentBuilder.swift,\ _LayoutBlockNode.swift,\ _LayoutBlockType.swift /Users/admin/builder/spi-builder-workspace/MondrianLayout/Descriptors/VHStackContentBuilder.swift /Users/admin/builder/spi-builder-workspace/MondrianLayout/Descriptors/_LayoutBlockNode.swift /Users/admin/builder/spi-builder-workspace/MondrianLayout/Descriptors/_LayoutBlockType.swift (in target 'MondrianLayout' from project 'MondrianLayout')
SwiftCompile normal arm64 /Users/admin/builder/spi-builder-workspace/MondrianLayout/Descriptors/VHStackContentBuilder.swift (in target 'MondrianLayout' from project 'MondrianLayout')
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode

/Users/admin/builder/spi-builder-workspace/MondrianLayout/Descriptors/VHStackContentBuilder.swift:161:55: error: 'UILayoutGuide' is unavailable in watchOS
  public static func buildExpression(_ layoutGuides: [UILayoutGuide]...) -> [Component] {
                                                      ^~~~~~~~~~~~~
/Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS26.0.sdk/System/Library/Frameworks/UIKit.framework/Headers/UILayoutGuide.h:24:12: note: 'UILayoutGuide' has been explicitly marked unavailable here
@interface UILayoutGuide : NSObject <NSCoding>
           ^
/Users/admin/builder/spi-builder-workspace/MondrianLayout/Descriptors/VHStackContentBuilder.swift:167:51: error: 'UILayoutGuide' is unavailable in watchOS
  public static func buildExpression<LayoutGuide: UILayoutGuide>(_ layoutGuide: LayoutGuide) -> [Component] {
                                                  ^~~~~~~~~~~~~
/Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS26.0.sdk/System/Library/Frameworks/UIKit.framework/Headers/UILayoutGuide.h:24:12: note: 'UILayoutGuide' has been explicitly marked unavailable here
@interface UILayoutGuide : NSObject <NSCoding>
           ^
/Users/admin/builder/spi-builder-workspace/MondrianLayout/Descriptors/VHStackContentBuilder.swift:173:51: error: 'UILayoutGuide' is unavailable in watchOS
  public static func buildExpression<LayoutGuide: UILayoutGuide>(_ layoutGuide: LayoutGuide?) -> [Component] {
                                                  ^~~~~~~~~~~~~
/Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS26.0.sdk/System/Library/Frameworks/UIKit.framework/Headers/UILayoutGuide.h:24:12: note: 'UILayoutGuide' has been explicitly marked unavailable here
@interface UILayoutGuide : NSObject <NSCoding>
           ^
/Users/admin/builder/spi-builder-workspace/MondrianLayout/Descriptors/VHStackContentBuilder.swift:178:48: error: 'UIView' is unavailable in watchOS
  public static func buildExpression(_ views: [UIView]...) -> [Component] {
                                               ^~~~~~
/Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS26.0.sdk/System/Library/Frameworks/UIKit.framework/Headers/UIView.h:147:12: note: 'UIView' has been explicitly marked unavailable here
@interface UIView : UIResponder <NSCoding, UIAppearance, UIAppearanceContainer, UIDynamicItem, UITraitEnvironment, UICoordinateSpace, UIFocusItem, UIFocusItemContainer, CALayerDelegate>
           ^
/Users/admin/builder/spi-builder-workspace/MondrianLayout/Descriptors/VHStackContentBuilder.swift:184:44: error: 'UIView' is unavailable in watchOS
  public static func buildExpression<View: UIView>(_ view: View) -> [Component] {
                                           ^~~~~~
/Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS26.0.sdk/System/Library/Frameworks/UIKit.framework/Headers/UIView.h:147:12: note: 'UIView' has been explicitly marked unavailable here
@interface UIView : UIResponder <NSCoding, UIAppearance, UIAppearanceContainer, UIDynamicItem, UITraitEnvironment, UICoordinateSpace, UIFocusItem, UIFocusItemContainer, CALayerDelegate>
           ^
/Users/admin/builder/spi-builder-workspace/MondrianLayout/Descriptors/VHStackContentBuilder.swift:190:44: error: 'UIView' is unavailable in watchOS
  public static func buildExpression<View: UIView>(_ view: View?) -> [Component] {
                                           ^~~~~~
/Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS26.0.sdk/System/Library/Frameworks/UIKit.framework/Headers/UIView.h:147:12: note: 'UIView' has been explicitly marked unavailable here
@interface UIView : UIResponder <NSCoding, UIAppearance, UIAppearanceContainer, UIDynamicItem, UITraitEnvironment, UICoordinateSpace, UIFocusItem, UIFocusItemContainer, CALayerDelegate>
           ^
/Users/admin/builder/spi-builder-workspace/MondrianLayout/Descriptors/VHStackContentBuilder.swift:239:48: error: 'UIView' is unavailable in watchOS
  public static func buildExpression(_ views: [UIView]...) -> [Component] {
                                               ^~~~~~
/Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS26.0.sdk/System/Library/Frameworks/UIKit.framework/Headers/UIView.h:147:12: note: 'UIView' has been explicitly marked unavailable here
@interface UIView : UIResponder <NSCoding, UIAppearance, UIAppearanceContainer, UIDynamicItem, UITraitEnvironment, UICoordinateSpace, UIFocusItem, UIFocusItemContainer, CALayerDelegate>
           ^
/Users/admin/builder/spi-builder-workspace/MondrianLayout/Descriptors/VHStackContentBuilder.swift:245:44: error: 'UIView' is unavailable in watchOS
  public static func buildExpression<View: UIView>(_ view: View) -> [Component] {
                                           ^~~~~~
/Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS26.0.sdk/System/Library/Frameworks/UIKit.framework/Headers/UIView.h:147:12: note: 'UIView' has been explicitly marked unavailable here
@interface UIView : UIResponder <NSCoding, UIAppearance, UIAppearanceContainer, UIDynamicItem, UITraitEnvironment, UICoordinateSpace, UIFocusItem, UIFocusItemContainer, CALayerDelegate>
           ^
/Users/admin/builder/spi-builder-workspace/MondrianLayout/Descriptors/VHStackContentBuilder.swift:251:44: error: 'UIView' is unavailable in watchOS
  public static func buildExpression<View: UIView>(_ view: View?) -> [Component] {
                                           ^~~~~~
/Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS26.0.sdk/System/Library/Frameworks/UIKit.framework/Headers/UIView.h:147:12: note: 'UIView' has been explicitly marked unavailable here
@interface UIView : UIResponder <NSCoding, UIAppearance, UIAppearanceContainer, UIDynamicItem, UITraitEnvironment, UICoordinateSpace, UIFocusItem, UIFocusItemContainer, CALayerDelegate>
           ^
SwiftCompile normal arm64 /Users/admin/builder/spi-builder-workspace/MondrianLayout/Descriptors/_LayoutBlockNode.swift (in target 'MondrianLayout' from project 'MondrianLayout')
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode

/Users/admin/builder/spi-builder-workspace/MondrianLayout/Descriptors/_LayoutBlockNode.swift:38:34: error: 'UIView' is unavailable in watchOS
  public func background(_ view: UIView) -> BackgroundBlock {
                                 ^~~~~~
/Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS26.0.sdk/System/Library/Frameworks/UIKit.framework/Headers/UIView.h:147:12: note: 'UIView' has been explicitly marked unavailable here
@interface UIView : UIResponder <NSCoding, UIAppearance, UIAppearanceContainer, UIDynamicItem, UITraitEnvironment, UICoordinateSpace, UIFocusItem, UIFocusItemContainer, CALayerDelegate>
           ^
/Users/admin/builder/spi-builder-workspace/MondrianLayout/Descriptors/_LayoutBlockNode.swift:46:31: error: 'UIView' is unavailable in watchOS
  public func overlay(_ view: UIView) -> OverlayBlock {
                              ^~~~~~
/Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS26.0.sdk/System/Library/Frameworks/UIKit.framework/Headers/UIView.h:147:12: note: 'UIView' has been explicitly marked unavailable here
@interface UIView : UIResponder <NSCoding, UIAppearance, UIAppearanceContainer, UIDynamicItem, UITraitEnvironment, UICoordinateSpace, UIFocusItem, UIFocusItemContainer, CALayerDelegate>
           ^
SwiftCompile normal arm64 /Users/admin/builder/spi-builder-workspace/MondrianLayout/Descriptors/_LayoutBlockType.swift (in target 'MondrianLayout' from project 'MondrianLayout')
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode

SwiftCompile normal arm64 Compiling\ UIView+Mondrian.swift,\ Utils.swift,\ _LayoutElement.swift /Users/admin/builder/spi-builder-workspace/MondrianLayout/Extensions/UIView+Mondrian.swift /Users/admin/builder/spi-builder-workspace/MondrianLayout/Internal/Utils.swift /Users/admin/builder/spi-builder-workspace/MondrianLayout/Internal/_LayoutElement.swift (in target 'MondrianLayout' from project 'MondrianLayout')
Failed frontend command:
/Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/swift-frontend -frontend -c /Users/admin/builder/spi-builder-workspace/MondrianLayout/Classic/LayoutDescriptor.swift /Users/admin/builder/spi-builder-workspace/MondrianLayout/Classic/MondrianArrayBuilder.swift /Users/admin/builder/spi-builder-workspace/MondrianLayout/Descriptors/DimensionDescriptor.swift /Users/admin/builder/spi-builder-workspace/MondrianLayout/Descriptors/Edge.swift /Users/admin/builder/spi-builder-workspace/MondrianLayout/Descriptors/LayoutBuilderContext.swift /Users/admin/builder/spi-builder-workspace/MondrianLayout/Descriptors/Optimization.swift /Users/admin/builder/spi-builder-workspace/MondrianLayout/Descriptors/VHStackContentBuilder.swift /Users/admin/builder/spi-builder-workspace/MondrianLayout/Descriptors/_LayoutBlockNode.swift /Users/admin/builder/spi-builder-workspace/MondrianLayout/Descriptors/_LayoutBlockType.swift /Users/admin/builder/spi-builder-workspace/MondrianLayout/EntryPoint.swift /Users/admin/builder/spi-builder-workspace/MondrianLayout/Extensions/NSLayoutConstraint+.swift /Users/admin/builder/spi-builder-workspace/MondrianLayout/Extensions/UILayoutGuide+Mondrian.swift -primary-file /Users/admin/builder/spi-builder-workspace/MondrianLayout/Extensions/UIView+Mondrian.swift -primary-file /Users/admin/builder/spi-builder-workspace/MondrianLayout/Internal/Utils.swift -primary-file /Users/admin/builder/spi-builder-workspace/MondrianLayout/Internal/_LayoutElement.swift /Users/admin/builder/spi-builder-workspace/MondrianLayout/LayoutBlocks/BackgroundBlock.swift /Users/admin/builder/spi-builder-workspace/MondrianLayout/LayoutBlocks/HStackBlock.swift /Users/admin/builder/spi-builder-workspace/MondrianLayout/LayoutBlocks/LayoutContainer.swift /Users/admin/builder/spi-builder-workspace/MondrianLayout/LayoutBlocks/LayoutGuideBlock.swift /Users/admin/builder/spi-builder-workspace/MondrianLayout/LayoutBlocks/OverlayBlock.swift /Users/admin/builder/spi-builder-workspace/MondrianLayout/LayoutBlocks/RelativeBlock.swift /Users/admin/builder/spi-builder-workspace/MondrianLayout/LayoutBlocks/StackingSpacer.swift /Users/admin/builder/spi-builder-workspace/MondrianLayout/LayoutBlocks/VGridBlock.swift /Users/admin/builder/spi-builder-workspace/MondrianLayout/LayoutBlocks/VStackBlock.swift /Users/admin/builder/spi-builder-workspace/MondrianLayout/LayoutBlocks/ViewBlock.swift /Users/admin/builder/spi-builder-workspace/MondrianLayout/LayoutBlocks/ZStackBlock.swift /Users/admin/builder/spi-builder-workspace/MondrianLayout/Manager/LayoutManager.swift /Users/admin/builder/spi-builder-workspace/MondrianLayout/MondrianNamespace.swift -supplementary-output-file-map /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/MondrianLayout.build/Debug-watchos/MondrianLayout.build/Objects-normal/arm64/supplementaryOutputs-14 -target arm64-apple-watchos5.0 -load-resolved-plugin /Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/WatchOS.platform/Developer/usr/lib/swift/host/plugins/libFoundationMacros.dylib\#/Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/WatchOS.platform/Developer/usr/bin/swift-plugin-server\#FoundationMacros -load-resolved-plugin /Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/WatchOS.platform/Developer/usr/lib/swift/host/plugins/libObservationMacros.dylib\#/Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/WatchOS.platform/Developer/usr/bin/swift-plugin-server\#ObservationMacros -load-resolved-plugin /Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/WatchOS.platform/Developer/usr/lib/swift/host/plugins/libSwiftMacros.dylib\#/Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/WatchOS.platform/Developer/usr/bin/swift-plugin-server\#SwiftMacros -load-resolved-plugin /Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/WatchOS.platform/Developer/usr/lib/swift/host/plugins/libSwiftUIMacros.dylib\#/Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/WatchOS.platform/Developer/usr/bin/swift-plugin-server\#SwiftUIMacros -disable-implicit-swift-modules -Xcc -fno-implicit-modules -Xcc -fno-implicit-module-maps -explicit-swift-module-map-file /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/MondrianLayout.build/Debug-watchos/MondrianLayout.build/Objects-normal/arm64/MondrianLayout-dependencies-2.json -Xllvm -aarch64-use-tbi -enable-objc-interop -sdk /Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS26.0.sdk -I /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug-watchos -I /Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/WatchOS.platform/Developer/usr/lib -F /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug-watchos -F /Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/WatchOS.platform/Developer/Library/Frameworks -F /Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS26.0.sdk/Developer/Library/Frameworks -no-color-diagnostics -Xcc -fno-color-diagnostics -enable-testing -g -debug-info-format\=dwarf -dwarf-version\=4 -module-cache-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftExplicitPrecompiledModules -swift-version 5 -enforce-exclusivity\=checked -Onone -D SWIFT_PACKAGE -D DEBUG -D SWIFT_MODULE_RESOURCE_BUNDLE_UNAVAILABLE -D Xcode -serialize-debugging-options -const-gather-protocols-file /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/MondrianLayout.build/Debug-watchos/MondrianLayout.build/Objects-normal/arm64/MondrianLayout_const_extract_protocols.json -enable-experimental-feature DebugDescriptionMacro -empty-abi-descriptor -validate-clang-modules-once -clang-build-session-file /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex/Session.modulevalidation -Xcc -working-directory -Xcc /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode -enable-anonymous-context-mangled-names -file-compilation-dir /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode -Xcc -ivfsstatcache -Xcc /Users/admin/builder/spi-builder-workspace/.derivedData/SDKStatCaches.noindex/watchos26.0-23R5280j-041894b46d26f03ea1587ab1cb6ac97e.sdkstatcache -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/MondrianLayout.build/Debug-watchos/MondrianLayout.build/swift-overrides.hmap -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug-watchos/include -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/MondrianLayout.build/Debug-watchos/MondrianLayout.build/DerivedSources-normal/arm64 -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/MondrianLayout.build/Debug-watchos/MondrianLayout.build/DerivedSources/arm64 -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/MondrianLayout.build/Debug-watchos/MondrianLayout.build/DerivedSources -Xcc -DSWIFT_PACKAGE -Xcc -DDEBUG\=1 -no-auto-bridging-header-chaining -module-name MondrianLayout -frontend-parseable-output -disable-clang-spi -target-sdk-version 26.0 -target-sdk-name watchos26.0 -clang-target arm64-apple-watchos26.0 -o /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/MondrianLayout.build/Debug-watchos/MondrianLayout.build/Objects-normal/arm64/UIView+Mondrian.o -o /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/MondrianLayout.build/Debug-watchos/MondrianLayout.build/Objects-normal/arm64/Utils.o -o /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/MondrianLayout.build/Debug-watchos/MondrianLayout.build/Objects-normal/arm64/_LayoutElement.o -index-unit-output-path /MondrianLayout.build/Debug-watchos/MondrianLayout.build/Objects-normal/arm64/UIView+Mondrian.o -index-unit-output-path /MondrianLayout.build/Debug-watchos/MondrianLayout.build/Objects-normal/arm64/Utils.o -index-unit-output-path /MondrianLayout.build/Debug-watchos/MondrianLayout.build/Objects-normal/arm64/_LayoutElement.o -index-store-path /Users/admin/builder/spi-builder-workspace/.derivedData/Index.noindex/DataStore -index-system-modules
SwiftCompile normal arm64 /Users/admin/builder/spi-builder-workspace/MondrianLayout/Extensions/UIView+Mondrian.swift (in target 'MondrianLayout' from project 'MondrianLayout')
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode

/Users/admin/builder/spi-builder-workspace/MondrianLayout/Extensions/UIView+Mondrian.swift:37:42: error: 'UIView' is unavailable in watchOS
extension MondrianNamespace where Base : UIView {
                                         ^~~~~~
/Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS26.0.sdk/System/Library/Frameworks/UIKit.framework/Headers/UIView.h:147:12: note: 'UIView' has been explicitly marked unavailable here
@interface UIView : UIResponder <NSCoding, UIAppearance, UIAppearanceContainer, UIDynamicItem, UITraitEnvironment, UICoordinateSpace, UIFocusItem, UIFocusItemContainer, CALayerDelegate>
           ^
/Users/admin/builder/spi-builder-workspace/MondrianLayout/Extensions/UIView+Mondrian.swift:63:42: error: 'UIView' is unavailable in watchOS
  public var mondrian: MondrianNamespace<UIView> {
                                         ^~~~~~
/Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS26.0.sdk/System/Library/Frameworks/UIKit.framework/Headers/UIView.h:147:12: note: 'UIView' has been explicitly marked unavailable here
@interface UIView : UIResponder <NSCoding, UIAppearance, UIAppearanceContainer, UIDynamicItem, UITraitEnvironment, UICoordinateSpace, UIFocusItem, UIFocusItemContainer, CALayerDelegate>
           ^
/Users/admin/builder/spi-builder-workspace/MondrianLayout/Extensions/UIView+Mondrian.swift:61:11: error: 'UIView' is unavailable in watchOS
extension UIView {
          ^~~~~~
/Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS26.0.sdk/System/Library/Frameworks/UIKit.framework/Headers/UIView.h:147:12: note: 'UIView' has been explicitly marked unavailable here
@interface UIView : UIResponder <NSCoding, UIAppearance, UIAppearanceContainer, UIDynamicItem, UITraitEnvironment, UICoordinateSpace, UIFocusItem, UIFocusItemContainer, CALayerDelegate>
           ^
/Users/admin/builder/spi-builder-workspace/MondrianLayout/Extensions/UIView+Mondrian.swift:71:11: error: 'UIView' is unavailable in watchOS
extension UIView {
          ^~~~~~
/Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS26.0.sdk/System/Library/Frameworks/UIKit.framework/Headers/UIView.h:147:12: note: 'UIView' has been explicitly marked unavailable here
@interface UIView : UIResponder <NSCoding, UIAppearance, UIAppearanceContainer, UIDynamicItem, UITraitEnvironment, UICoordinateSpace, UIFocusItem, UIFocusItemContainer, CALayerDelegate>
           ^
/Users/admin/builder/spi-builder-workspace/MondrianLayout/Extensions/UIView+Mondrian.swift:53:5: error: 'NSLayoutConstraint' is unavailable in watchOS
    NSLayoutConstraint.activate(
    ^~~~~~~~~~~~~~~~~~
/Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS26.0.sdk/System/Library/Frameworks/UIKit.framework/Headers/NSLayoutConstraint.h:126:12: note: 'NSLayoutConstraint' has been explicitly marked unavailable here
@interface NSLayoutConstraint : NSObject
           ^
/Users/admin/builder/spi-builder-workspace/MondrianLayout/Extensions/UIView+Mondrian.swift:82:27: error: 'UIView' is unavailable in watchOS
    func traverse(_ view: UIView) {
                          ^~~~~~
/Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS26.0.sdk/System/Library/Frameworks/UIKit.framework/Headers/UIView.h:147:12: note: 'UIView' has been explicitly marked unavailable here
@interface UIView : UIResponder <NSCoding, UIAppearance, UIAppearanceContainer, UIDynamicItem, UITraitEnvironment, UICoordinateSpace, UIFocusItem, UIFocusItemContainer, CALayerDelegate>
           ^
SwiftCompile normal arm64 /Users/admin/builder/spi-builder-workspace/MondrianLayout/Internal/Utils.swift (in target 'MondrianLayout' from project 'MondrianLayout')
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode

SwiftCompile normal arm64 /Users/admin/builder/spi-builder-workspace/MondrianLayout/Internal/_LayoutElement.swift (in target 'MondrianLayout' from project 'MondrianLayout')
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode

/Users/admin/builder/spi-builder-workspace/MondrianLayout/Internal/_LayoutElement.swift:9:11: error: 'UIView' is unavailable in watchOS
extension UIView: __LayoutElementConvertible {
          ^~~~~~
/Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS26.0.sdk/System/Library/Frameworks/UIKit.framework/Headers/UIView.h:147:12: note: 'UIView' has been explicitly marked unavailable here
@interface UIView : UIResponder <NSCoding, UIAppearance, UIAppearanceContainer, UIDynamicItem, UITraitEnvironment, UICoordinateSpace, UIFocusItem, UIFocusItemContainer, CALayerDelegate>
           ^
/Users/admin/builder/spi-builder-workspace/MondrianLayout/Internal/_LayoutElement.swift:16:11: error: 'UILayoutGuide' is unavailable in watchOS
extension UILayoutGuide: __LayoutElementConvertible {
          ^~~~~~~~~~~~~
/Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS26.0.sdk/System/Library/Frameworks/UIKit.framework/Headers/UILayoutGuide.h:24:12: note: 'UILayoutGuide' has been explicitly marked unavailable here
@interface UILayoutGuide : NSObject <NSCoding>
           ^
/Users/admin/builder/spi-builder-workspace/MondrianLayout/Internal/_LayoutElement.swift:51:22: error: 'NSLayoutXAxisAnchor' is unavailable in watchOS
  let leadingAnchor: NSLayoutXAxisAnchor
                     ^~~~~~~~~~~~~~~~~~~
/Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS26.0.sdk/System/Library/Frameworks/UIKit.framework/Headers/NSLayoutAnchor.h:64:12: note: 'NSLayoutXAxisAnchor' has been explicitly marked unavailable here
@interface NSLayoutXAxisAnchor : NSLayoutAnchor<NSLayoutXAxisAnchor *>
           ^
/Users/admin/builder/spi-builder-workspace/MondrianLayout/Internal/_LayoutElement.swift:52:23: error: 'NSLayoutXAxisAnchor' is unavailable in watchOS
  let trailingAnchor: NSLayoutXAxisAnchor
                      ^~~~~~~~~~~~~~~~~~~
/Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS26.0.sdk/System/Library/Frameworks/UIKit.framework/Headers/NSLayoutAnchor.h:64:12: note: 'NSLayoutXAxisAnchor' has been explicitly marked unavailable here
@interface NSLayoutXAxisAnchor : NSLayoutAnchor<NSLayoutXAxisAnchor *>
           ^
/Users/admin/builder/spi-builder-workspace/MondrianLayout/Internal/_LayoutElement.swift:53:19: error: 'NSLayoutXAxisAnchor' is unavailable in watchOS
  let leftAnchor: NSLayoutXAxisAnchor
                  ^~~~~~~~~~~~~~~~~~~
/Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS26.0.sdk/System/Library/Frameworks/UIKit.framework/Headers/NSLayoutAnchor.h:64:12: note: 'NSLayoutXAxisAnchor' has been explicitly marked unavailable here
@interface NSLayoutXAxisAnchor : NSLayoutAnchor<NSLayoutXAxisAnchor *>
           ^
/Users/admin/builder/spi-builder-workspace/MondrianLayout/Internal/_LayoutElement.swift:54:20: error: 'NSLayoutXAxisAnchor' is unavailable in watchOS
  let rightAnchor: NSLayoutXAxisAnchor
                   ^~~~~~~~~~~~~~~~~~~
/Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS26.0.sdk/System/Library/Frameworks/UIKit.framework/Headers/NSLayoutAnchor.h:64:12: note: 'NSLayoutXAxisAnchor' has been explicitly marked unavailable here
@interface NSLayoutXAxisAnchor : NSLayoutAnchor<NSLayoutXAxisAnchor *>
           ^
/Users/admin/builder/spi-builder-workspace/MondrianLayout/Internal/_LayoutElement.swift:55:18: error: 'NSLayoutYAxisAnchor' is unavailable in watchOS
  let topAnchor: NSLayoutYAxisAnchor
                 ^~~~~~~~~~~~~~~~~~~
/Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS26.0.sdk/System/Library/Frameworks/UIKit.framework/Headers/NSLayoutAnchor.h:72:12: note: 'NSLayoutYAxisAnchor' has been explicitly marked unavailable here
@interface NSLayoutYAxisAnchor : NSLayoutAnchor<NSLayoutYAxisAnchor *>
           ^
/Users/admin/builder/spi-builder-workspace/MondrianLayout/Internal/_LayoutElement.swift:56:21: error: 'NSLayoutYAxisAnchor' is unavailable in watchOS
  let bottomAnchor: NSLayoutYAxisAnchor
                    ^~~~~~~~~~~~~~~~~~~
/Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS26.0.sdk/System/Library/Frameworks/UIKit.framework/Headers/NSLayoutAnchor.h:72:12: note: 'NSLayoutYAxisAnchor' has been explicitly marked unavailable here
@interface NSLayoutYAxisAnchor : NSLayoutAnchor<NSLayoutYAxisAnchor *>
           ^
/Users/admin/builder/spi-builder-workspace/MondrianLayout/Internal/_LayoutElement.swift:57:20: error: 'NSLayoutDimension' is unavailable in watchOS
  let widthAnchor: NSLayoutDimension
                   ^~~~~~~~~~~~~~~~~
/Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS26.0.sdk/System/Library/Frameworks/UIKit.framework/Headers/NSLayoutAnchor.h:81:12: note: 'NSLayoutDimension' has been explicitly marked unavailable here
@interface NSLayoutDimension : NSLayoutAnchor<NSLayoutDimension *>
           ^
/Users/admin/builder/spi-builder-workspace/MondrianLayout/Internal/_LayoutElement.swift:58:21: error: 'NSLayoutDimension' is unavailable in watchOS
  let heightAnchor: NSLayoutDimension
                    ^~~~~~~~~~~~~~~~~
/Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS26.0.sdk/System/Library/Frameworks/UIKit.framework/Headers/NSLayoutAnchor.h:81:12: note: 'NSLayoutDimension' has been explicitly marked unavailable here
@interface NSLayoutDimension : NSLayoutAnchor<NSLayoutDimension *>
           ^
/Users/admin/builder/spi-builder-workspace/MondrianLayout/Internal/_LayoutElement.swift:59:22: error: 'NSLayoutXAxisAnchor' is unavailable in watchOS
  let centerXAnchor: NSLayoutXAxisAnchor
                     ^~~~~~~~~~~~~~~~~~~
/Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS26.0.sdk/System/Library/Frameworks/UIKit.framework/Headers/NSLayoutAnchor.h:64:12: note: 'NSLayoutXAxisAnchor' has been explicitly marked unavailable here
@interface NSLayoutXAxisAnchor : NSLayoutAnchor<NSLayoutXAxisAnchor *>
           ^
/Users/admin/builder/spi-builder-workspace/MondrianLayout/Internal/_LayoutElement.swift:60:22: error: 'NSLayoutYAxisAnchor' is unavailable in watchOS
  let centerYAnchor: NSLayoutYAxisAnchor
                     ^~~~~~~~~~~~~~~~~~~
/Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS26.0.sdk/System/Library/Frameworks/UIKit.framework/Headers/NSLayoutAnchor.h:72:12: note: 'NSLayoutYAxisAnchor' has been explicitly marked unavailable here
@interface NSLayoutYAxisAnchor : NSLayoutAnchor<NSLayoutYAxisAnchor *>
           ^
/Users/admin/builder/spi-builder-workspace/MondrianLayout/Internal/_LayoutElement.swift:62:19: error: 'UIView' is unavailable in watchOS
  var owningView: UIView? {
                  ^~~~~~
/Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS26.0.sdk/System/Library/Frameworks/UIKit.framework/Headers/UIView.h:147:12: note: 'UIView' has been explicitly marked unavailable here
@interface UIView : UIResponder <NSCoding, UIAppearance, UIAppearanceContainer, UIDynamicItem, UITraitEnvironment, UICoordinateSpace, UIFocusItem, UIFocusItemContainer, CALayerDelegate>
           ^
/Users/admin/builder/spi-builder-workspace/MondrianLayout/Internal/_LayoutElement.swift:66:13: error: 'UIView' is unavailable in watchOS
  let view: UIView?
            ^~~~~~
/Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS26.0.sdk/System/Library/Frameworks/UIKit.framework/Headers/UIView.h:147:12: note: 'UIView' has been explicitly marked unavailable here
@interface UIView : UIResponder <NSCoding, UIAppearance, UIAppearanceContainer, UIDynamicItem, UITraitEnvironment, UICoordinateSpace, UIFocusItem, UIFocusItemContainer, CALayerDelegate>
           ^
/Users/admin/builder/spi-builder-workspace/MondrianLayout/Internal/_LayoutElement.swift:67:20: error: 'UILayoutGuide' is unavailable in watchOS
  let layoutGuide: UILayoutGuide?
                   ^~~~~~~~~~~~~
/Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS26.0.sdk/System/Library/Frameworks/UIKit.framework/Headers/UILayoutGuide.h:24:12: note: 'UILayoutGuide' has been explicitly marked unavailable here
@interface UILayoutGuide : NSObject <NSCoding>
           ^
/Users/admin/builder/spi-builder-workspace/MondrianLayout/Internal/_LayoutElement.swift:69:21: error: 'UIView' is unavailable in watchOS
  public init(view: UIView) {
                    ^~~~~~
/Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS26.0.sdk/System/Library/Frameworks/UIKit.framework/Headers/UIView.h:147:12: note: 'UIView' has been explicitly marked unavailable here
@interface UIView : UIResponder <NSCoding, UIAppearance, UIAppearanceContainer, UIDynamicItem, UITraitEnvironment, UICoordinateSpace, UIFocusItem, UIFocusItemContainer, CALayerDelegate>
           ^
/Users/admin/builder/spi-builder-workspace/MondrianLayout/Internal/_LayoutElement.swift:86:28: error: 'UILayoutGuide' is unavailable in watchOS
  public init(layoutGuide: UILayoutGuide) {
                           ^~~~~~~~~~~~~
/Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS26.0.sdk/System/Library/Frameworks/UIKit.framework/Headers/UILayoutGuide.h:24:12: note: 'UILayoutGuide' has been explicitly marked unavailable here
@interface UILayoutGuide : NSObject <NSCoding>
           ^
/Users/admin/builder/spi-builder-workspace/MondrianLayout/Internal/_LayoutElement.swift:104:39: error: 'NSLayoutXAxisAnchor' is unavailable in watchOS
  func anchor(_ type: XAxisAnchor) -> NSLayoutXAxisAnchor {
                                      ^~~~~~~~~~~~~~~~~~~
/Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS26.0.sdk/System/Library/Frameworks/UIKit.framework/Headers/NSLayoutAnchor.h:64:12: note: 'NSLayoutXAxisAnchor' has been explicitly marked unavailable here
@interface NSLayoutXAxisAnchor : NSLayoutAnchor<NSLayoutXAxisAnchor *>
           ^
/Users/admin/builder/spi-builder-workspace/MondrianLayout/Internal/_LayoutElement.swift:119:39: error: 'NSLayoutYAxisAnchor' is unavailable in watchOS
  func anchor(_ type: YAxisAnchor) -> NSLayoutYAxisAnchor {
                                      ^~~~~~~~~~~~~~~~~~~
/Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS26.0.sdk/System/Library/Frameworks/UIKit.framework/Headers/NSLayoutAnchor.h:72:12: note: 'NSLayoutYAxisAnchor' has been explicitly marked unavailable here
@interface NSLayoutYAxisAnchor : NSLayoutAnchor<NSLayoutYAxisAnchor *>
           ^
/Users/admin/builder/spi-builder-workspace/MondrianLayout/Internal/_LayoutElement.swift:130:43: error: 'NSLayoutDimension' is unavailable in watchOS
  func anchor(_ type: DimensionAnchor) -> NSLayoutDimension {
                                          ^~~~~~~~~~~~~~~~~
/Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS26.0.sdk/System/Library/Frameworks/UIKit.framework/Headers/NSLayoutAnchor.h:81:12: note: 'NSLayoutDimension' has been explicitly marked unavailable here
@interface NSLayoutDimension : NSLayoutAnchor<NSLayoutDimension *>
           ^
SwiftCompile normal arm64 Compiling\ BackgroundBlock.swift,\ HStackBlock.swift,\ LayoutContainer.swift /Users/admin/builder/spi-builder-workspace/MondrianLayout/LayoutBlocks/BackgroundBlock.swift /Users/admin/builder/spi-builder-workspace/MondrianLayout/LayoutBlocks/HStackBlock.swift /Users/admin/builder/spi-builder-workspace/MondrianLayout/LayoutBlocks/LayoutContainer.swift (in target 'MondrianLayout' from project 'MondrianLayout')
SwiftCompile normal arm64 /Users/admin/builder/spi-builder-workspace/MondrianLayout/LayoutBlocks/BackgroundBlock.swift (in target 'MondrianLayout' from project 'MondrianLayout')
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode

/Users/admin/builder/spi-builder-workspace/MondrianLayout/Classic/LayoutDescriptor.swift:209:80: error: 'required' is unavailable in watchOS
    public static func exact(_ value: CGFloat, _ priority: UILayoutPriority = .required) -> Self
                                                                               ^~~~~~~~
/Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS26.0.sdk/System/Library/Frameworks/UIKit.framework/Headers/NSLayoutConstraint.h:18:31: note: 'required' has been explicitly marked unavailable here
static const UILayoutPriority UILayoutPriorityRequired API_AVAILABLE(ios(6.0)) API_UNAVAILABLE(watchos) = 1000; // A required constraint.  Do not exceed this.
                              ^
SwiftCompile normal arm64 /Users/admin/builder/spi-builder-workspace/MondrianLayout/LayoutBlocks/HStackBlock.swift (in target 'MondrianLayout' from project 'MondrianLayout')
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode

/Users/admin/builder/spi-builder-workspace/MondrianLayout/LayoutBlocks/HStackBlock.swift:68:47: error: 'NSLayoutConstraint' is unavailable in watchOS
      func makeShrinkingWeakConstraints() -> [NSLayoutConstraint] {
                                              ^~~~~~~~~~~~~~~~~~
/Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS26.0.sdk/System/Library/Frameworks/UIKit.framework/Headers/NSLayoutConstraint.h:126:12: note: 'NSLayoutConstraint' has been explicitly marked unavailable here
@interface NSLayoutConstraint : NSObject
           ^
/Users/admin/builder/spi-builder-workspace/MondrianLayout/LayoutBlocks/HStackBlock.swift:71:14: error: 'fittingSizeLevel' is unavailable in watchOS
            .fittingSizeLevel
             ^~~~~~~~~~~~~~~~
/Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS26.0.sdk/System/Library/Frameworks/UIKit.framework/Headers/NSLayoutConstraint.h:24:31: note: 'fittingSizeLevel' has been explicitly marked unavailable here
static const UILayoutPriority UILayoutPriorityFittingSizeLevel API_AVAILABLE(ios(6.0)) API_UNAVAILABLE(watchos) = 50; // When you send -[UIView systemLayoutSizeFittingSize:], the size fitting most closely to the target size (the argument) is computed.  UILayoutPriorityFittingSizeLevel is the priority level with which the view wants to conform to the target size in that computation.  It's quite low.  It is generally not appropriate to make a constraint at exactly this priority.  You want to be higher or lower.
                              ^
/Users/admin/builder/spi-builder-workspace/MondrianLayout/LayoutBlocks/HStackBlock.swift:74:14: error: 'fittingSizeLevel' is unavailable in watchOS
            .fittingSizeLevel
             ^~~~~~~~~~~~~~~~
/Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS26.0.sdk/System/Library/Frameworks/UIKit.framework/Headers/NSLayoutConstraint.h:24:31: note: 'fittingSizeLevel' has been explicitly marked unavailable here
static const UILayoutPriority UILayoutPriorityFittingSizeLevel API_AVAILABLE(ios(6.0)) API_UNAVAILABLE(watchos) = 50; // When you send -[UIView systemLayoutSizeFittingSize:], the size fitting most closely to the target size (the argument) is computed.  UILayoutPriorityFittingSizeLevel is the priority level with which the view wants to conform to the target size in that computation.  It's quite low.  It is generally not appropriate to make a constraint at exactly this priority.  You want to be higher or lower.
                              ^
SwiftCompile normal arm64 /Users/admin/builder/spi-builder-workspace/MondrianLayout/LayoutBlocks/LayoutContainer.swift (in target 'MondrianLayout' from project 'MondrianLayout')
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode

/Users/admin/builder/spi-builder-workspace/MondrianLayout/LayoutBlocks/LayoutContainer.swift:63:33: error: 'UIView' is unavailable in watchOS
  func setupConstraints(parent: UIView, in context: LayoutBuilderContext) {
                                ^~~~~~
/Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS26.0.sdk/System/Library/Frameworks/UIKit.framework/Headers/UIView.h:147:12: note: 'UIView' has been explicitly marked unavailable here
@interface UIView : UIResponder <NSCoding, UIAppearance, UIAppearanceContainer, UIDynamicItem, UITraitEnvironment, UICoordinateSpace, UIFocusItem, UIFocusItemContainer, CALayerDelegate>
           ^
/Users/admin/builder/spi-builder-workspace/MondrianLayout/LayoutBlocks/LayoutContainer.swift:82:42: error: 'safeAreaLayoutGuide' is unavailable in watchOS
        return .init(layoutGuide: parent.safeAreaLayoutGuide)
                                         ^~~~~~~~~~~~~~~~~~~
/Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS26.0.sdk/System/Library/Frameworks/UIKit.framework/Headers/UIView.h:301:53: note: 'safeAreaLayoutGuide' has been explicitly marked unavailable here
@property(nonatomic,readonly,strong) UILayoutGuide *safeAreaLayoutGuide API_AVAILABLE(ios(11.0), tvos(11.0)) API_UNAVAILABLE(watchos);
                                                    ^
/Users/admin/builder/spi-builder-workspace/MondrianLayout/LayoutBlocks/LayoutContainer.swift:90:69: error: 'safeAreaLayoutGuide' is unavailable in watchOS
        let layoutGuideElement = _LayoutElement(layoutGuide: parent.safeAreaLayoutGuide)
                                                                    ^~~~~~~~~~~~~~~~~~~
/Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS26.0.sdk/System/Library/Frameworks/UIKit.framework/Headers/UIView.h:301:53: note: 'safeAreaLayoutGuide' has been explicitly marked unavailable here
@property(nonatomic,readonly,strong) UILayoutGuide *safeAreaLayoutGuide API_AVAILABLE(ios(11.0), tvos(11.0)) API_UNAVAILABLE(watchos);
                                                    ^
SwiftCompile normal arm64 Compiling\ EntryPoint.swift,\ NSLayoutConstraint+.swift,\ UILayoutGuide+Mondrian.swift /Users/admin/builder/spi-builder-workspace/MondrianLayout/EntryPoint.swift /Users/admin/builder/spi-builder-workspace/MondrianLayout/Extensions/NSLayoutConstraint+.swift /Users/admin/builder/spi-builder-workspace/MondrianLayout/Extensions/UILayoutGuide+Mondrian.swift (in target 'MondrianLayout' from project 'MondrianLayout')
SwiftCompile normal arm64 /Users/admin/builder/spi-builder-workspace/MondrianLayout/EntryPoint.swift (in target 'MondrianLayout' from project 'MondrianLayout')
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode

/Users/admin/builder/spi-builder-workspace/MondrianLayout/EntryPoint.swift:61:14: error: 'UIView' is unavailable in watchOS
    on view: UIView,
             ^~~~~~
/Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS26.0.sdk/System/Library/Frameworks/UIKit.framework/Headers/UIView.h:147:12: note: 'UIView' has been explicitly marked unavailable here
@interface UIView : UIResponder <NSCoding, UIAppearance, UIAppearanceContainer, UIDynamicItem, UITraitEnvironment, UICoordinateSpace, UIFocusItem, UIFocusItemContainer, CALayerDelegate>
           ^
SwiftCompile normal arm64 /Users/admin/builder/spi-builder-workspace/MondrianLayout/Extensions/NSLayoutConstraint+.swift (in target 'MondrianLayout' from project 'MondrianLayout')
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode

/Users/admin/builder/spi-builder-workspace/MondrianLayout/Extensions/NSLayoutConstraint+.swift:6:51: error: 'NSLayoutConstraint' is unavailable in watchOS
  func setInternalIdentifier(_ string: String) -> NSLayoutConstraint {
                                                  ^~~~~~~~~~~~~~~~~~
/Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS26.0.sdk/System/Library/Frameworks/UIKit.framework/Headers/NSLayoutConstraint.h:126:12: note: 'NSLayoutConstraint' has been explicitly marked unavailable here
@interface NSLayoutConstraint : NSObject
           ^
/Users/admin/builder/spi-builder-workspace/MondrianLayout/Extensions/NSLayoutConstraint+.swift:12:43: error: 'NSLayoutConstraint' is unavailable in watchOS
  func setIdentifier(_ string: String) -> NSLayoutConstraint {
                                          ^~~~~~~~~~~~~~~~~~
/Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS26.0.sdk/System/Library/Frameworks/UIKit.framework/Headers/NSLayoutConstraint.h:126:12: note: 'NSLayoutConstraint' has been explicitly marked unavailable here
@interface NSLayoutConstraint : NSObject
           ^
/Users/admin/builder/spi-builder-workspace/MondrianLayout/Extensions/NSLayoutConstraint+.swift:18:32: error: 'UILayoutPriority' is unavailable in watchOS
  func setPriority(_ priority: UILayoutPriority) -> NSLayoutConstraint {
                               ^~~~~~~~~~~~~~~~
/Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS26.0.sdk/System/Library/Frameworks/UIKit.framework/Headers/NSLayoutConstraint.h:17:15: note: 'UILayoutPriority' has been explicitly marked unavailable here
typedef float UILayoutPriority NS_TYPED_EXTENSIBLE_ENUM API_UNAVAILABLE(watchos);
              ^
/Users/admin/builder/spi-builder-workspace/MondrianLayout/Extensions/NSLayoutConstraint+.swift:18:53: error: 'NSLayoutConstraint' is unavailable in watchOS
  func setPriority(_ priority: UILayoutPriority) -> NSLayoutConstraint {
                                                    ^~~~~~~~~~~~~~~~~~
/Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS26.0.sdk/System/Library/Frameworks/UIKit.framework/Headers/NSLayoutConstraint.h:126:12: note: 'NSLayoutConstraint' has been explicitly marked unavailable here
@interface NSLayoutConstraint : NSObject
           ^
/Users/admin/builder/spi-builder-workspace/MondrianLayout/Extensions/NSLayoutConstraint+.swift:3:11: error: 'NSLayoutConstraint' is unavailable in watchOS
extension NSLayoutConstraint {
          ^~~~~~~~~~~~~~~~~~
/Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS26.0.sdk/System/Library/Frameworks/UIKit.framework/Headers/NSLayoutConstraint.h:126:12: note: 'NSLayoutConstraint' has been explicitly marked unavailable here
@interface NSLayoutConstraint : NSObject
           ^
SwiftCompile normal arm64 /Users/admin/builder/spi-builder-workspace/MondrianLayout/Extensions/UILayoutGuide+Mondrian.swift (in target 'MondrianLayout' from project 'MondrianLayout')
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode

/Users/admin/builder/spi-builder-workspace/MondrianLayout/Extensions/UILayoutGuide+Mondrian.swift:5:42: error: 'UILayoutGuide' is unavailable in watchOS
  public var mondrian: MondrianNamespace<UILayoutGuide> {
                                         ^~~~~~~~~~~~~
/Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS26.0.sdk/System/Library/Frameworks/UIKit.framework/Headers/UILayoutGuide.h:24:12: note: 'UILayoutGuide' has been explicitly marked unavailable here
@interface UILayoutGuide : NSObject <NSCoding>
           ^
/Users/admin/builder/spi-builder-workspace/MondrianLayout/Extensions/UILayoutGuide+Mondrian.swift:3:11: error: 'UILayoutGuide' is unavailable in watchOS
extension UILayoutGuide {
          ^~~~~~~~~~~~~
/Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS26.0.sdk/System/Library/Frameworks/UIKit.framework/Headers/UILayoutGuide.h:24:12: note: 'UILayoutGuide' has been explicitly marked unavailable here
@interface UILayoutGuide : NSObject <NSCoding>
           ^
SwiftCompile normal arm64 Compiling\ Edge.swift,\ LayoutBuilderContext.swift,\ Optimization.swift /Users/admin/builder/spi-builder-workspace/MondrianLayout/Descriptors/Edge.swift /Users/admin/builder/spi-builder-workspace/MondrianLayout/Descriptors/LayoutBuilderContext.swift /Users/admin/builder/spi-builder-workspace/MondrianLayout/Descriptors/Optimization.swift (in target 'MondrianLayout' from project 'MondrianLayout')
SwiftCompile normal arm64 /Users/admin/builder/spi-builder-workspace/MondrianLayout/Descriptors/Edge.swift (in target 'MondrianLayout' from project 'MondrianLayout')
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode

SwiftCompile normal arm64 /Users/admin/builder/spi-builder-workspace/MondrianLayout/Descriptors/LayoutBuilderContext.swift (in target 'MondrianLayout' from project 'MondrianLayout')
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode

/Users/admin/builder/spi-builder-workspace/MondrianLayout/Descriptors/LayoutBuilderContext.swift:11:31: error: 'UIView' is unavailable in watchOS
  public weak var targetView: UIView?
                              ^~~~~~
/Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS26.0.sdk/System/Library/Frameworks/UIKit.framework/Headers/UIView.h:147:12: note: 'UIView' has been explicitly marked unavailable here
@interface UIView : UIResponder <NSCoding, UIAppearance, UIAppearanceContainer, UIDynamicItem, UITraitEnvironment, UICoordinateSpace, UIFocusItem, UIFocusItemContainer, CALayerDelegate>
           ^
/Users/admin/builder/spi-builder-workspace/MondrianLayout/Descriptors/LayoutBuilderContext.swift:17:17: error: 'UIView' is unavailable in watchOS
    targetView: UIView
                ^~~~~~
/Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS26.0.sdk/System/Library/Frameworks/UIKit.framework/Headers/UIView.h:147:12: note: 'UIView' has been explicitly marked unavailable here
@interface UIView : UIResponder <NSCoding, UIAppearance, UIAppearanceContainer, UIDynamicItem, UITraitEnvironment, UICoordinateSpace, UIFocusItem, UIFocusItemContainer, CALayerDelegate>
           ^
/Users/admin/builder/spi-builder-workspace/MondrianLayout/Descriptors/LayoutBuilderContext.swift:23:49: error: 'UILayoutGuide' is unavailable in watchOS
  public private(set) var managedLayoutGuides: [UILayoutGuide] = []
                                                ^~~~~~~~~~~~~
/Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS26.0.sdk/System/Library/Frameworks/UIKit.framework/Headers/UILayoutGuide.h:24:12: note: 'UILayoutGuide' has been explicitly marked unavailable here
@interface UILayoutGuide : NSObject <NSCoding>
           ^
/Users/admin/builder/spi-builder-workspace/MondrianLayout/Descriptors/LayoutBuilderContext.swift:24:41: error: 'NSLayoutConstraint' is unavailable in watchOS
  public private(set) var constraints: [NSLayoutConstraint] = []
                                        ^~~~~~~~~~~~~~~~~~
/Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS26.0.sdk/System/Library/Frameworks/UIKit.framework/Headers/NSLayoutConstraint.h:126:12: note: 'NSLayoutConstraint' has been explicitly marked unavailable here
@interface NSLayoutConstraint : NSObject
           ^
/Users/admin/builder/spi-builder-workspace/MondrianLayout/Descriptors/LayoutBuilderContext.swift:29:26: error: 'NSLayoutConstraint' is unavailable in watchOS
  func add(constraints: [NSLayoutConstraint]) {
                         ^~~~~~~~~~~~~~~~~~
/Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS26.0.sdk/System/Library/Frameworks/UIKit.framework/Headers/NSLayoutConstraint.h:126:12: note: 'NSLayoutConstraint' has been explicitly marked unavailable here
@interface NSLayoutConstraint : NSObject
           ^
/Users/admin/builder/spi-builder-workspace/MondrianLayout/Descriptors/LayoutBuilderContext.swift:33:47: error: 'UILayoutGuide' is unavailable in watchOS
  func makeLayoutGuide(identifier: String) -> UILayoutGuide {
                                              ^~~~~~~~~~~~~
/Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS26.0.sdk/System/Library/Frameworks/UIKit.framework/Headers/UILayoutGuide.h:24:12: note: 'UILayoutGuide' has been explicitly marked unavailable here
@interface UILayoutGuide : NSObject <NSCoding>
           ^
/Users/admin/builder/spi-builder-workspace/MondrianLayout/Descriptors/LayoutBuilderContext.swift:35:17: error: 'UILayoutGuide' is unavailable in watchOS
    let guide = UILayoutGuide()
                ^~~~~~~~~~~~~
/Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS26.0.sdk/System/Library/Frameworks/UIKit.framework/Headers/UILayoutGuide.h:24:12: note: 'UILayoutGuide' has been explicitly marked unavailable here
@interface UILayoutGuide : NSObject <NSCoding>
           ^
/Users/admin/builder/spi-builder-workspace/MondrianLayout/Descriptors/LayoutBuilderContext.swift:99:5: error: 'NSLayoutConstraint' is unavailable in watchOS
    NSLayoutConstraint.activate(constraints)
    ^~~~~~~~~~~~~~~~~~
/Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS26.0.sdk/System/Library/Frameworks/UIKit.framework/Headers/NSLayoutConstraint.h:126:12: note: 'NSLayoutConstraint' has been explicitly marked unavailable here
@interface NSLayoutConstraint : NSObject
           ^
/Users/admin/builder/spi-builder-workspace/MondrianLayout/Descriptors/LayoutBuilderContext.swift:126:5: error: 'NSLayoutConstraint' is unavailable in watchOS
    NSLayoutConstraint.deactivate(constraints)
    ^~~~~~~~~~~~~~~~~~
/Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS26.0.sdk/System/Library/Frameworks/UIKit.framework/Headers/NSLayoutConstraint.h:126:12: note: 'NSLayoutConstraint' has been explicitly marked unavailable here
@interface NSLayoutConstraint : NSObject
           ^
SwiftCompile normal arm64 /Users/admin/builder/spi-builder-workspace/MondrianLayout/Descriptors/Optimization.swift (in target 'MondrianLayout' from project 'MondrianLayout')
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode

SwiftCompile normal arm64 Compiling\ LayoutDescriptor.swift,\ MondrianArrayBuilder.swift,\ DimensionDescriptor.swift /Users/admin/builder/spi-builder-workspace/MondrianLayout/Classic/LayoutDescriptor.swift /Users/admin/builder/spi-builder-workspace/MondrianLayout/Classic/MondrianArrayBuilder.swift /Users/admin/builder/spi-builder-workspace/MondrianLayout/Descriptors/DimensionDescriptor.swift (in target 'MondrianLayout' from project 'MondrianLayout')
SwiftCompile normal arm64 /Users/admin/builder/spi-builder-workspace/MondrianLayout/Classic/LayoutDescriptor.swift (in target 'MondrianLayout' from project 'MondrianLayout')
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode

/Users/admin/builder/spi-builder-workspace/MondrianLayout/Classic/LayoutDescriptor.swift:16:41: error: 'NSLayoutConstraint' is unavailable in watchOS
  public private(set) var constraints: [NSLayoutConstraint]
                                        ^~~~~~~~~~~~~~~~~~
/Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS26.0.sdk/System/Library/Frameworks/UIKit.framework/Headers/NSLayoutConstraint.h:126:12: note: 'NSLayoutConstraint' has been explicitly marked unavailable here
@interface NSLayoutConstraint : NSObject
           ^
/Users/admin/builder/spi-builder-workspace/MondrianLayout/Classic/LayoutDescriptor.swift:19:19: error: 'NSLayoutConstraint' is unavailable in watchOS
    constraints: [NSLayoutConstraint]
                  ^~~~~~~~~~~~~~~~~~
/Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS26.0.sdk/System/Library/Frameworks/UIKit.framework/Headers/NSLayoutConstraint.h:126:12: note: 'NSLayoutConstraint' has been explicitly marked unavailable here
@interface NSLayoutConstraint : NSObject
           ^
/Users/admin/builder/spi-builder-workspace/MondrianLayout/Classic/LayoutDescriptor.swift:24:36: error: 'NSLayoutConstraint' is unavailable in watchOS
  public func append(_ constraint: NSLayoutConstraint) {
                                   ^~~~~~~~~~~~~~~~~~
/Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS26.0.sdk/System/Library/Frameworks/UIKit.framework/Headers/NSLayoutConstraint.h:126:12: note: 'NSLayoutConstraint' has been explicitly marked unavailable here
@interface NSLayoutConstraint : NSObject
           ^
/Users/admin/builder/spi-builder-workspace/MondrianLayout/Classic/LayoutDescriptor.swift:68:33: error: 'UIView' is unavailable in watchOS
  public static func to(_ view: UIView) -> LayoutDescriptorElement {
                                ^~~~~~
/Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS26.0.sdk/System/Library/Frameworks/UIKit.framework/Headers/UIView.h:147:12: note: 'UIView' has been explicitly marked unavailable here
@interface UIView : UIResponder <NSCoding, UIAppearance, UIAppearanceContainer, UIDynamicItem, UITraitEnvironment, UICoordinateSpace, UIFocusItem, UIFocusItemContainer, CALayerDelegate>
           ^
/Users/admin/builder/spi-builder-workspace/MondrianLayout/Classic/LayoutDescriptor.swift:72:40: error: 'UILayoutGuide' is unavailable in watchOS
  public static func to(_ layoutGuide: UILayoutGuide) -> LayoutDescriptorElement {
                                       ^~~~~~~~~~~~~
/Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS26.0.sdk/System/Library/Frameworks/UIKit.framework/Headers/UILayoutGuide.h:24:12: note: 'UILayoutGuide' has been explicitly marked unavailable here
@interface UILayoutGuide : NSObject <NSCoding>
           ^
/Users/admin/builder/spi-builder-workspace/MondrianLayout/Classic/LayoutDescriptor.swift:183:26: error: 'UILayoutPriority' is unavailable in watchOS
    public var priority: UILayoutPriority
                         ^~~~~~~~~~~~~~~~
/Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS26.0.sdk/System/Library/Frameworks/UIKit.framework/Headers/NSLayoutConstraint.h:17:15: note: 'UILayoutPriority' has been explicitly marked unavailable here
typedef float UILayoutPriority NS_TYPED_EXTENSIBLE_ENUM API_UNAVAILABLE(watchos);
              ^
/Users/admin/builder/spi-builder-workspace/MondrianLayout/Classic/LayoutDescriptor.swift:196:17: error: 'UILayoutPriority' is unavailable in watchOS
      priority: UILayoutPriority
                ^~~~~~~~~~~~~~~~
/Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS26.0.sdk/System/Library/Frameworks/UIKit.framework/Headers/NSLayoutConstraint.h:17:15: note: 'UILayoutPriority' has been explicitly marked unavailable here
typedef float UILayoutPriority NS_TYPED_EXTENSIBLE_ENUM API_UNAVAILABLE(watchos);
              ^
/Users/admin/builder/spi-builder-workspace/MondrianLayout/Classic/LayoutDescriptor.swift:204:58: error: 'UILayoutPriority' is unavailable in watchOS
    public static func min(_ value: CGFloat, _ priority: UILayoutPriority = .required) -> Self {
                                                         ^~~~~~~~~~~~~~~~
/Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS26.0.sdk/System/Library/Frameworks/UIKit.framework/Headers/NSLayoutConstraint.h:17:15: note: 'UILayoutPriority' has been explicitly marked unavailable here
typedef float UILayoutPriority NS_TYPED_EXTENSIBLE_ENUM API_UNAVAILABLE(watchos);
              ^
/Users/admin/builder/spi-builder-workspace/MondrianLayout/Classic/LayoutDescriptor.swift:204:78: error: 'required' is unavailable in watchOS
    public static func min(_ value: CGFloat, _ priority: UILayoutPriority = .required) -> Self {
                                                                             ^~~~~~~~
/Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS26.0.sdk/System/Library/Frameworks/UIKit.framework/Headers/NSLayoutConstraint.h:18:31: note: 'required' has been explicitly marked unavailable here
static const UILayoutPriority UILayoutPriorityRequired API_AVAILABLE(ios(6.0)) API_UNAVAILABLE(watchos) = 1000; // A required constraint.  Do not exceed this.
                              ^
/Users/admin/builder/spi-builder-workspace/MondrianLayout/Classic/LayoutDescriptor.swift:209:60: error: 'UILayoutPriority' is unavailable in watchOS
    public static func exact(_ value: CGFloat, _ priority: UILayoutPriority = .required) -> Self
                                                           ^~~~~~~~~~~~~~~~
/Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS26.0.sdk/System/Library/Frameworks/UIKit.framework/Headers/NSLayoutConstraint.h:17:15: note: 'UILayoutPriority' has been explicitly marked unavailable here
typedef float UILayoutPriority NS_TYPED_EXTENSIBLE_ENUM API_UNAVAILABLE(watchos);
              ^
/Users/admin/builder/spi-builder-workspace/MondrianLayout/Classic/LayoutDescriptor.swift:209:80: error: 'required' is unavailable in watchOS
    public static func exact(_ value: CGFloat, _ priority: UILayoutPriority = .required) -> Self
                                                                               ^~~~~~~~
/Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS26.0.sdk/System/Library/Frameworks/UIKit.framework/Headers/NSLayoutConstraint.h:18:31: note: 'required' has been explicitly marked unavailable here
static const UILayoutPriority UILayoutPriorityRequired API_AVAILABLE(ios(6.0)) API_UNAVAILABLE(watchos) = 1000; // A required constraint.  Do not exceed this.
                              ^
/Users/admin/builder/spi-builder-workspace/MondrianLayout/Classic/LayoutDescriptor.swift:215:58: error: 'UILayoutPriority' is unavailable in watchOS
    public static func max(_ value: CGFloat, _ priority: UILayoutPriority = .required) -> Self {
                                                         ^~~~~~~~~~~~~~~~
/Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS26.0.sdk/System/Library/Frameworks/UIKit.framework/Headers/NSLayoutConstraint.h:17:15: note: 'UILayoutPriority' has been explicitly marked unavailable here
typedef float UILayoutPriority NS_TYPED_EXTENSIBLE_ENUM API_UNAVAILABLE(watchos);
              ^
/Users/admin/builder/spi-builder-workspace/MondrianLayout/Classic/LayoutDescriptor.swift:215:78: error: 'required' is unavailable in watchOS
    public static func max(_ value: CGFloat, _ priority: UILayoutPriority = .required) -> Self {
                                                                             ^~~~~~~~
/Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS26.0.sdk/System/Library/Frameworks/UIKit.framework/Headers/NSLayoutConstraint.h:18:31: note: 'required' has been explicitly marked unavailable here
static const UILayoutPriority UILayoutPriorityRequired API_AVAILABLE(ios(6.0)) API_UNAVAILABLE(watchos) = 1000; // A required constraint.  Do not exceed this.
                              ^
/Users/admin/builder/spi-builder-workspace/MondrianLayout/Classic/LayoutDescriptor.swift:224:11: error: 'UIView' is unavailable in watchOS
    view: UIView
          ^~~~~~
/Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS26.0.sdk/System/Library/Frameworks/UIKit.framework/Headers/UIView.h:147:12: note: 'UIView' has been explicitly marked unavailable here
@interface UIView : UIResponder <NSCoding, UIAppearance, UIAppearanceContainer, UIDynamicItem, UITraitEnvironment, UICoordinateSpace, UIFocusItem, UIFocusItemContainer, CALayerDelegate>
           ^
/Users/admin/builder/spi-builder-workspace/MondrianLayout/Classic/LayoutDescriptor.swift:231:18: error: 'UILayoutGuide' is unavailable in watchOS
    layoutGuide: UILayoutGuide
                 ^~~~~~~~~~~~~
/Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS26.0.sdk/System/Library/Frameworks/UIKit.framework/Headers/UILayoutGuide.h:24:12: note: 'UILayoutGuide' has been explicitly marked unavailable here
@interface UILayoutGuide : NSObject <NSCoding>
           ^
/Users/admin/builder/spi-builder-workspace/MondrianLayout/Classic/LayoutDescriptor.swift:257:37: error: 'NSLayoutConstraint' is unavailable in watchOS
  private var proposedConstraints: [NSLayoutConstraint] = []
                                    ^~~~~~~~~~~~~~~~~~
/Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS26.0.sdk/System/Library/Frameworks/UIKit.framework/Headers/NSLayoutConstraint.h:126:12: note: 'NSLayoutConstraint' has been explicitly marked unavailable here
@interface NSLayoutConstraint : NSObject
           ^
/Users/admin/builder/spi-builder-workspace/MondrianLayout/Classic/LayoutDescriptor.swift:271:52: error: 'NSLayoutConstraint' is unavailable in watchOS
    _ closure: (_LayoutElement, _LayoutElement) -> NSLayoutConstraint
                                                   ^~~~~~~~~~~~~~~~~~
/Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS26.0.sdk/System/Library/Frameworks/UIKit.framework/Headers/NSLayoutConstraint.h:126:12: note: 'NSLayoutConstraint' has been explicitly marked unavailable here
@interface NSLayoutConstraint : NSObject
           ^
/Users/admin/builder/spi-builder-workspace/MondrianLayout/Classic/LayoutDescriptor.swift:272:8: error: 'NSLayoutConstraint' is unavailable in watchOS
  ) -> NSLayoutConstraint? {
       ^~~~~~~~~~~~~~~~~~
/Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS26.0.sdk/System/Library/Frameworks/UIKit.framework/Headers/NSLayoutConstraint.h:126:12: note: 'NSLayoutConstraint' has been explicitly marked unavailable here
@interface NSLayoutConstraint : NSObject
           ^
/Users/admin/builder/spi-builder-workspace/MondrianLayout/Classic/LayoutDescriptor.swift:289:53: error: 'NSLayoutConstraint' is unavailable in watchOS
    _ closure: (_LayoutElement, _LayoutElement) -> [NSLayoutConstraint]
                                                    ^~~~~~~~~~~~~~~~~~
/Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS26.0.sdk/System/Library/Frameworks/UIKit.framework/Headers/NSLayoutConstraint.h:126:12: note: 'NSLayoutConstraint' has been explicitly marked unavailable here
@interface NSLayoutConstraint : NSObject
           ^
/Users/admin/builder/spi-builder-workspace/MondrianLayout/Classic/LayoutDescriptor.swift:290:9: error: 'NSLayoutConstraint' is unavailable in watchOS
  ) -> [NSLayoutConstraint]? {
        ^~~~~~~~~~~~~~~~~~
/Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS26.0.sdk/System/Library/Frameworks/UIKit.framework/Headers/NSLayoutConstraint.h:126:12: note: 'NSLayoutConstraint' has been explicitly marked unavailable here
@interface NSLayoutConstraint : NSObject
           ^
/Users/admin/builder/spi-builder-workspace/MondrianLayout/Classic/LayoutDescriptor.swift:609:37: error: 'NSLayoutConstraint' is unavailable in watchOS
  public func makeConstraints() -> [NSLayoutConstraint] {
                                    ^~~~~~~~~~~~~~~~~~
/Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS26.0.sdk/System/Library/Frameworks/UIKit.framework/Headers/NSLayoutConstraint.h:126:12: note: 'NSLayoutConstraint' has been explicitly marked unavailable here
@interface NSLayoutConstraint : NSObject
           ^
/Users/admin/builder/spi-builder-workspace/MondrianLayout/Classic/LayoutDescriptor.swift:621:16: error: 'NSLayoutDimension' is unavailable in watchOS
    to anchor: NSLayoutDimension
               ^~~~~~~~~~~~~~~~~
/Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS26.0.sdk/System/Library/Frameworks/UIKit.framework/Headers/NSLayoutAnchor.h:81:12: note: 'NSLayoutDimension' has been explicitly marked unavailable here
@interface NSLayoutDimension : NSLayoutAnchor<NSLayoutDimension *>
           ^
/Users/admin/builder/spi-builder-workspace/MondrianLayout/Classic/LayoutDescriptor.swift:622:8: error: 'NSLayoutConstraint' is unavailable in watchOS
  ) -> NSLayoutConstraint {
       ^~~~~~~~~~~~~~~~~~
/Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS26.0.sdk/System/Library/Frameworks/UIKit.framework/Headers/NSLayoutConstraint.h:126:12: note: 'NSLayoutConstraint' has been explicitly marked unavailable here
@interface NSLayoutConstraint : NSObject
           ^
/Users/admin/builder/spi-builder-workspace/MondrianLayout/Classic/LayoutDescriptor.swift:616:11: error: 'NSLayoutDimension' is unavailable in watchOS
extension NSLayoutDimension {
          ^~~~~~~~~~~~~~~~~
/Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS26.0.sdk/System/Library/Frameworks/UIKit.framework/Headers/NSLayoutAnchor.h:81:12: note: 'NSLayoutDimension' has been explicitly marked unavailable here
@interface NSLayoutDimension : NSLayoutAnchor<NSLayoutDimension *>
           ^
/Users/admin/builder/spi-builder-workspace/MondrianLayout/Classic/LayoutDescriptor.swift:656:16: error: 'NSLayoutXAxisAnchor' is unavailable in watchOS
    to anchor: NSLayoutXAxisAnchor
               ^~~~~~~~~~~~~~~~~~~
/Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS26.0.sdk/System/Library/Frameworks/UIKit.framework/Headers/NSLayoutAnchor.h:64:12: note: 'NSLayoutXAxisAnchor' has been explicitly marked unavailable here
@interface NSLayoutXAxisAnchor : NSLayoutAnchor<NSLayoutXAxisAnchor *>
           ^
/Users/admin/builder/spi-builder-workspace/MondrianLayout/Classic/LayoutDescriptor.swift:657:8: error: 'NSLayoutConstraint' is unavailable in watchOS
  ) -> NSLayoutConstraint {
       ^~~~~~~~~~~~~~~~~~
/Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS26.0.sdk/System/Library/Frameworks/UIKit.framework/Headers/NSLayoutConstraint.h:126:12: note: 'NSLayoutConstraint' has been explicitly marked unavailable here
@interface NSLayoutConstraint : NSObject
           ^
/Users/admin/builder/spi-builder-workspace/MondrianLayout/Classic/LayoutDescriptor.swift:652:11: error: 'NSLayoutXAxisAnchor' is unavailable in watchOS
extension NSLayoutXAxisAnchor {
          ^~~~~~~~~~~~~~~~~~~
/Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS26.0.sdk/System/Library/Frameworks/UIKit.framework/Headers/NSLayoutAnchor.h:64:12: note: 'NSLayoutXAxisAnchor' has been explicitly marked unavailable here
@interface NSLayoutXAxisAnchor : NSLayoutAnchor<NSLayoutXAxisAnchor *>
           ^
/Users/admin/builder/spi-builder-workspace/MondrianLayout/Classic/LayoutDescriptor.swift:679:16: error: 'NSLayoutYAxisAnchor' is unavailable in watchOS
    to anchor: NSLayoutYAxisAnchor
               ^~~~~~~~~~~~~~~~~~~
/Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS26.0.sdk/System/Library/Frameworks/UIKit.framework/Headers/NSLayoutAnchor.h:72:12: note: 'NSLayoutYAxisAnchor' has been explicitly marked unavailable here
@interface NSLayoutYAxisAnchor : NSLayoutAnchor<NSLayoutYAxisAnchor *>
           ^
/Users/admin/builder/spi-builder-workspace/MondrianLayout/Classic/LayoutDescriptor.swift:680:8: error: 'NSLayoutConstraint' is unavailable in watchOS
  ) -> NSLayoutConstraint {
       ^~~~~~~~~~~~~~~~~~
/Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS26.0.sdk/System/Library/Frameworks/UIKit.framework/Headers/NSLayoutConstraint.h:126:12: note: 'NSLayoutConstraint' has been explicitly marked unavailable here
@interface NSLayoutConstraint : NSObject
           ^
/Users/admin/builder/spi-builder-workspace/MondrianLayout/Classic/LayoutDescriptor.swift:675:11: error: 'NSLayoutYAxisAnchor' is unavailable in watchOS
extension NSLayoutYAxisAnchor {
          ^~~~~~~~~~~~~~~~~~~
/Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS26.0.sdk/System/Library/Frameworks/UIKit.framework/Headers/NSLayoutAnchor.h:72:12: note: 'NSLayoutYAxisAnchor' has been explicitly marked unavailable here
@interface NSLayoutYAxisAnchor : NSLayoutAnchor<NSLayoutYAxisAnchor *>
           ^
/Users/admin/builder/spi-builder-workspace/MondrianLayout/Classic/LayoutDescriptor.swift:37:5: error: 'NSLayoutConstraint' is unavailable in watchOS
    NSLayoutConstraint.activate(constraints)
    ^~~~~~~~~~~~~~~~~~
/Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS26.0.sdk/System/Library/Frameworks/UIKit.framework/Headers/NSLayoutConstraint.h:126:12: note: 'NSLayoutConstraint' has been explicitly marked unavailable here
@interface NSLayoutConstraint : NSObject
           ^
/Users/admin/builder/spi-builder-workspace/MondrianLayout/Classic/LayoutDescriptor.swift:45:5: error: 'NSLayoutConstraint' is unavailable in watchOS
    NSLayoutConstraint.deactivate(constraints)
    ^~~~~~~~~~~~~~~~~~
/Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS26.0.sdk/System/Library/Frameworks/UIKit.framework/Headers/NSLayoutConstraint.h:126:12: note: 'NSLayoutConstraint' has been explicitly marked unavailable here
@interface NSLayoutConstraint : NSObject
           ^
/Users/admin/builder/spi-builder-workspace/MondrianLayout/Classic/LayoutDescriptor.swift:186:72: error: 'required' is unavailable in watchOS
      self.init(relation: .exact, constant: CGFloat(value), priority: .required)
                                                                       ^~~~~~~~
/Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS26.0.sdk/System/Library/Frameworks/UIKit.framework/Headers/NSLayoutConstraint.h:18:31: note: 'required' has been explicitly marked unavailable here
static const UILayoutPriority UILayoutPriorityRequired API_AVAILABLE(ios(6.0)) API_UNAVAILABLE(watchos) = 1000; // A required constraint.  Do not exceed this.
                              ^
/Users/admin/builder/spi-builder-workspace/MondrianLayout/Classic/LayoutDescriptor.swift:190:72: error: 'required' is unavailable in watchOS
      self.init(relation: .exact, constant: CGFloat(value), priority: .required)
                                                                       ^~~~~~~~
/Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS26.0.sdk/System/Library/Frameworks/UIKit.framework/Headers/NSLayoutConstraint.h:18:31: note: 'required' has been explicitly marked unavailable here
static const UILayoutPriority UILayoutPriorityRequired API_AVAILABLE(ios(6.0)) API_UNAVAILABLE(watchos) = 1000; // A required constraint.  Do not exceed this.
                              ^
SwiftCompile normal arm64 /Users/admin/builder/spi-builder-workspace/MondrianLayout/Classic/MondrianArrayBuilder.swift (in target 'MondrianLayout' from project 'MondrianLayout')
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode

SwiftCompile normal arm64 /Users/admin/builder/spi-builder-workspace/MondrianLayout/Descriptors/DimensionDescriptor.swift (in target 'MondrianLayout' from project 'MondrianLayout')
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode

/Users/admin/builder/spi-builder-workspace/MondrianLayout/Descriptors/DimensionDescriptor.swift:7:26: error: 'UILayoutPriority' is unavailable in watchOS
    public var priority: UILayoutPriority
                         ^~~~~~~~~~~~~~~~
/Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS26.0.sdk/System/Library/Frameworks/UIKit.framework/Headers/NSLayoutConstraint.h:17:15: note: 'UILayoutPriority' has been explicitly marked unavailable here
typedef float UILayoutPriority NS_TYPED_EXTENSIBLE_ENUM API_UNAVAILABLE(watchos);
              ^
/Users/admin/builder/spi-builder-workspace/MondrianLayout/Descriptors/DimensionDescriptor.swift:21:41: error: 'UIView' is unavailable in watchOS
  public func makeConstraints(for view: UIView) -> [NSLayoutConstraint] {
                                        ^~~~~~
/Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS26.0.sdk/System/Library/Frameworks/UIKit.framework/Headers/UIView.h:147:12: note: 'UIView' has been explicitly marked unavailable here
@interface UIView : UIResponder <NSCoding, UIAppearance, UIAppearanceContainer, UIDynamicItem, UITraitEnvironment, UICoordinateSpace, UIFocusItem, UIFocusItemContainer, CALayerDelegate>
           ^
/Users/admin/builder/spi-builder-workspace/MondrianLayout/Descriptors/DimensionDescriptor.swift:21:53: error: 'NSLayoutConstraint' is unavailable in watchOS
  public func makeConstraints(for view: UIView) -> [NSLayoutConstraint] {
                                                    ^~~~~~~~~~~~~~~~~~
/Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS26.0.sdk/System/Library/Frameworks/UIKit.framework/Headers/NSLayoutConstraint.h:126:12: note: 'NSLayoutConstraint' has been explicitly marked unavailable here
@interface NSLayoutConstraint : NSObject
           ^
/Users/admin/builder/spi-builder-workspace/MondrianLayout/Descriptors/DimensionDescriptor.swift:25:48: error: 'UILayoutGuide' is unavailable in watchOS
  public func makeConstraints(for layoutGuide: UILayoutGuide) -> [NSLayoutConstraint] {
                                               ^~~~~~~~~~~~~
/Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS26.0.sdk/System/Library/Frameworks/UIKit.framework/Headers/UILayoutGuide.h:24:12: note: 'UILayoutGuide' has been explicitly marked unavailable here
@interface UILayoutGuide : NSObject <NSCoding>
           ^
/Users/admin/builder/spi-builder-workspace/MondrianLayout/Descriptors/DimensionDescriptor.swift:25:67: error: 'NSLayoutConstraint' is unavailable in watchOS
  public func makeConstraints(for layoutGuide: UILayoutGuide) -> [NSLayoutConstraint] {
                                                                  ^~~~~~~~~~~~~~~~~~
/Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS26.0.sdk/System/Library/Frameworks/UIKit.framework/Headers/NSLayoutConstraint.h:126:12: note: 'NSLayoutConstraint' has been explicitly marked unavailable here
@interface NSLayoutConstraint : NSObject
           ^
/Users/admin/builder/spi-builder-workspace/MondrianLayout/Descriptors/DimensionDescriptor.swift:29:54: error: 'NSLayoutConstraint' is unavailable in watchOS
  func makeConstraints(for view: _LayoutElement) -> [NSLayoutConstraint] {
                                                     ^~~~~~~~~~~~~~~~~~
/Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS26.0.sdk/System/Library/Frameworks/UIKit.framework/Headers/NSLayoutConstraint.h:126:12: note: 'NSLayoutConstraint' has been explicitly marked unavailable here
@interface NSLayoutConstraint : NSObject
           ^
/Users/admin/builder/spi-builder-workspace/MondrianLayout/Descriptors/DimensionDescriptor.swift:112:55: error: 'UILayoutPriority' is unavailable in watchOS
  public func aspectRatio(_ ratio: CGFloat, priority: UILayoutPriority = .required) -> Self {
                                                      ^~~~~~~~~~~~~~~~
/Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS26.0.sdk/System/Library/Frameworks/UIKit.framework/Headers/NSLayoutConstraint.h:17:15: note: 'UILayoutPriority' has been explicitly marked unavailable here
typedef float UILayoutPriority NS_TYPED_EXTENSIBLE_ENUM API_UNAVAILABLE(watchos);
              ^
/Users/admin/builder/spi-builder-workspace/MondrianLayout/Descriptors/DimensionDescriptor.swift:112:75: error: 'required' is unavailable in watchOS
  public func aspectRatio(_ ratio: CGFloat, priority: UILayoutPriority = .required) -> Self {
                                                                          ^~~~~~~~
/Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS26.0.sdk/System/Library/Frameworks/UIKit.framework/Headers/NSLayoutConstraint.h:18:31: note: 'required' has been explicitly marked unavailable here
static const UILayoutPriority UILayoutPriorityRequired API_AVAILABLE(ios(6.0)) API_UNAVAILABLE(watchos) = 1000; // A required constraint.  Do not exceed this.
                              ^
/Users/admin/builder/spi-builder-workspace/MondrianLayout/Descriptors/DimensionDescriptor.swift:207:46: error: 'UILayoutPriority' is unavailable in watchOS
  public func size(_ size: CGSize, priority: UILayoutPriority = .required) -> Self {
                                             ^~~~~~~~~~~~~~~~
/Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS26.0.sdk/System/Library/Frameworks/UIKit.framework/Headers/NSLayoutConstraint.h:17:15: note: 'UILayoutPriority' has been explicitly marked unavailable here
typedef float UILayoutPriority NS_TYPED_EXTENSIBLE_ENUM API_UNAVAILABLE(watchos);
              ^
/Users/admin/builder/spi-builder-workspace/MondrianLayout/Descriptors/DimensionDescriptor.swift:207:66: error: 'required' is unavailable in watchOS
  public func size(_ size: CGSize, priority: UILayoutPriority = .required) -> Self {
                                                                 ^~~~~~~~
/Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS26.0.sdk/System/Library/Frameworks/UIKit.framework/Headers/NSLayoutConstraint.h:18:31: note: 'required' has been explicitly marked unavailable here
static const UILayoutPriority UILayoutPriorityRequired API_AVAILABLE(ios(6.0)) API_UNAVAILABLE(watchos) = 1000; // A required constraint.  Do not exceed this.
                              ^
/Users/admin/builder/spi-builder-workspace/MondrianLayout/Descriptors/DimensionDescriptor.swift:217:49: error: 'UILayoutPriority' is unavailable in watchOS
  public func size(_ length: CGFloat, priority: UILayoutPriority = .required) -> Self {
                                                ^~~~~~~~~~~~~~~~
/Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS26.0.sdk/System/Library/Frameworks/UIKit.framework/Headers/NSLayoutConstraint.h:17:15: note: 'UILayoutPriority' has been explicitly marked unavailable here
typedef float UILayoutPriority NS_TYPED_EXTENSIBLE_ENUM API_UNAVAILABLE(watchos);
              ^
/Users/admin/builder/spi-builder-workspace/MondrianLayout/Descriptors/DimensionDescriptor.swift:217:69: error: 'required' is unavailable in watchOS
  public func size(_ length: CGFloat, priority: UILayoutPriority = .required) -> Self {
                                                                    ^~~~~~~~
/Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS26.0.sdk/System/Library/Frameworks/UIKit.framework/Headers/NSLayoutConstraint.h:18:31: note: 'required' has been explicitly marked unavailable here
static const UILayoutPriority UILayoutPriorityRequired API_AVAILABLE(ios(6.0)) API_UNAVAILABLE(watchos) = 1000; // A required constraint.  Do not exceed this.
                              ^
/Users/admin/builder/spi-builder-workspace/MondrianLayout/Descriptors/DimensionDescriptor.swift:30:22: error: 'NSLayoutConstraint' is unavailable in watchOS
    var constraint: [NSLayoutConstraint] = []
                     ^~~~~~~~~~~~~~~~~~
/Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS26.0.sdk/System/Library/Frameworks/UIKit.framework/Headers/NSLayoutConstraint.h:126:12: note: 'NSLayoutConstraint' has been explicitly marked unavailable here
@interface NSLayoutConstraint : NSObject
           ^
SwiftCompile normal arm64 Compiling\ StackingSpacer.swift,\ VGridBlock.swift,\ VStackBlock.swift /Users/admin/builder/spi-builder-workspace/MondrianLayout/LayoutBlocks/StackingSpacer.swift /Users/admin/builder/spi-builder-workspace/MondrianLayout/LayoutBlocks/VGridBlock.swift /Users/admin/builder/spi-builder-workspace/MondrianLayout/LayoutBlocks/VStackBlock.swift (in target 'MondrianLayout' from project 'MondrianLayout')
SwiftCompile normal arm64 /Users/admin/builder/spi-builder-workspace/MondrianLayout/LayoutBlocks/StackingSpacer.swift (in target 'MondrianLayout' from project 'MondrianLayout')
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode

SwiftCompile normal arm64 /Users/admin/builder/spi-builder-workspace/MondrianLayout/LayoutBlocks/VGridBlock.swift (in target 'MondrianLayout' from project 'MondrianLayout')
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode

/Users/admin/builder/spi-builder-workspace/MondrianLayout/LayoutBlocks/VGridBlock.swift:271:48: error: 'UIView' is unavailable in watchOS
  public static func buildExpression(_ views: [UIView]...) -> [Component] {
                                               ^~~~~~
/Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS26.0.sdk/System/Library/Frameworks/UIKit.framework/Headers/UIView.h:147:12: note: 'UIView' has been explicitly marked unavailable here
@interface UIView : UIResponder <NSCoding, UIAppearance, UIAppearanceContainer, UIDynamicItem, UITraitEnvironment, UICoordinateSpace, UIFocusItem, UIFocusItemContainer, CALayerDelegate>
           ^
/Users/admin/builder/spi-builder-workspace/MondrianLayout/LayoutBlocks/VGridBlock.swift:277:44: error: 'UIView' is unavailable in watchOS
  public static func buildExpression<View: UIView>(_ view: View) -> [Component] {
                                           ^~~~~~
/Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS26.0.sdk/System/Library/Frameworks/UIKit.framework/Headers/UIView.h:147:12: note: 'UIView' has been explicitly marked unavailable here
@interface UIView : UIResponder <NSCoding, UIAppearance, UIAppearanceContainer, UIDynamicItem, UITraitEnvironment, UICoordinateSpace, UIFocusItem, UIFocusItemContainer, CALayerDelegate>
           ^
/Users/admin/builder/spi-builder-workspace/MondrianLayout/LayoutBlocks/VGridBlock.swift:283:44: error: 'UIView' is unavailable in watchOS
  public static func buildExpression<View: UIView>(_ view: View?) -> [Component] {
                                           ^~~~~~
/Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS26.0.sdk/System/Library/Frameworks/UIKit.framework/Headers/UIView.h:147:12: note: 'UIView' has been explicitly marked unavailable here
@interface UIView : UIResponder <NSCoding, UIAppearance, UIAppearanceContainer, UIDynamicItem, UITraitEnvironment, UICoordinateSpace, UIFocusItem, UIFocusItemContainer, CALayerDelegate>
           ^
/Users/admin/builder/spi-builder-workspace/MondrianLayout/LayoutBlocks/VGridBlock.swift:72:119: error: 'UILayoutGuide' is unavailable in watchOS
    let emptyBlocks: [VGridContentBuilder.Component] = v >= 1 ? (0..<(columnCount - v)).map { _ in .layoutGuide(.init(UILayoutGuide())) } : []
                                                                                                                      ^~~~~~~~~~~~~
/Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS26.0.sdk/System/Library/Frameworks/UIKit.framework/Headers/UILayoutGuide.h:24:12: note: 'UILayoutGuide' has been explicitly marked unavailable here
@interface UILayoutGuide : NSObject <NSCoding>
           ^
/Users/admin/builder/spi-builder-workspace/MondrianLayout/LayoutBlocks/VGridBlock.swift:78:31: error: 'UILayoutGuide' is unavailable in watchOS
    var layoutGuidesBuffer: [[UILayoutGuide?]] = .init(repeating: .init(repeating: nil, count: columnCount), count: rows.count)
                              ^~~~~~~~~~~~~
/Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS26.0.sdk/System/Library/Frameworks/UIKit.framework/Headers/UILayoutGuide.h:24:12: note: 'UILayoutGuide' has been explicitly marked unavailable here
@interface UILayoutGuide : NSObject <NSCoding>
           ^
/Users/admin/builder/spi-builder-workspace/MondrianLayout/LayoutBlocks/VGridBlock.swift:93:41: error: 'NSLayoutConstraint' is unavailable in watchOS
          constraints: buildArray(type: NSLayoutConstraint.self) {
                                        ^~~~~~~~~~~~~~~~~~
/Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS26.0.sdk/System/Library/Frameworks/UIKit.framework/Headers/NSLayoutConstraint.h:126:12: note: 'NSLayoutConstraint' has been explicitly marked unavailable here
@interface NSLayoutConstraint : NSObject
           ^
SwiftCompile normal arm64 /Users/admin/builder/spi-builder-workspace/MondrianLayout/LayoutBlocks/VStackBlock.swift (in target 'MondrianLayout' from project 'MondrianLayout')
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode

/Users/admin/builder/spi-builder-workspace/MondrianLayout/LayoutBlocks/VStackBlock.swift:72:47: error: 'NSLayoutConstraint' is unavailable in watchOS
      func makeShrinkingWeakConstraints() -> [NSLayoutConstraint] {
                                              ^~~~~~~~~~~~~~~~~~
/Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS26.0.sdk/System/Library/Frameworks/UIKit.framework/Headers/NSLayoutConstraint.h:126:12: note: 'NSLayoutConstraint' has been explicitly marked unavailable here
@interface NSLayoutConstraint : NSObject
           ^
/Users/admin/builder/spi-builder-workspace/MondrianLayout/LayoutBlocks/VStackBlock.swift:77:14: error: 'fittingSizeLevel' is unavailable in watchOS
            .fittingSizeLevel
             ^~~~~~~~~~~~~~~~
/Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS26.0.sdk/System/Library/Frameworks/UIKit.framework/Headers/NSLayoutConstraint.h:24:31: note: 'fittingSizeLevel' has been explicitly marked unavailable here
static const UILayoutPriority UILayoutPriorityFittingSizeLevel API_AVAILABLE(ios(6.0)) API_UNAVAILABLE(watchos) = 50; // When you send -[UIView systemLayoutSizeFittingSize:], the size fitting most closely to the target size (the argument) is computed.  UILayoutPriorityFittingSizeLevel is the priority level with which the view wants to conform to the target size in that computation.  It's quite low.  It is generally not appropriate to make a constraint at exactly this priority.  You want to be higher or lower.
                              ^
/Users/admin/builder/spi-builder-workspace/MondrianLayout/LayoutBlocks/VStackBlock.swift:82:14: error: 'fittingSizeLevel' is unavailable in watchOS
            .fittingSizeLevel
             ^~~~~~~~~~~~~~~~
/Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS26.0.sdk/System/Library/Frameworks/UIKit.framework/Headers/NSLayoutConstraint.h:24:31: note: 'fittingSizeLevel' has been explicitly marked unavailable here
static const UILayoutPriority UILayoutPriorityFittingSizeLevel API_AVAILABLE(ios(6.0)) API_UNAVAILABLE(watchos) = 50; // When you send -[UIView systemLayoutSizeFittingSize:], the size fitting most closely to the target size (the argument) is computed.  UILayoutPriorityFittingSizeLevel is the priority level with which the view wants to conform to the target size in that computation.  It's quite low.  It is generally not appropriate to make a constraint at exactly this priority.  You want to be higher or lower.
                              ^
SwiftCompile normal arm64 Compiling\ LayoutManager.swift,\ MondrianNamespace.swift /Users/admin/builder/spi-builder-workspace/MondrianLayout/Manager/LayoutManager.swift /Users/admin/builder/spi-builder-workspace/MondrianLayout/MondrianNamespace.swift (in target 'MondrianLayout' from project 'MondrianLayout')
SwiftCompile normal arm64 /Users/admin/builder/spi-builder-workspace/MondrianLayout/Manager/LayoutManager.swift (in target 'MondrianLayout' from project 'MondrianLayout')
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode

/Users/admin/builder/spi-builder-workspace/MondrianLayout/Manager/LayoutManager.swift:31:32: error: 'UIView' is unavailable in watchOS
  private weak var targetView: UIView?
                               ^~~~~~
/Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS26.0.sdk/System/Library/Frameworks/UIKit.framework/Headers/UIView.h:147:12: note: 'UIView' has been explicitly marked unavailable here
@interface UIView : UIResponder <NSCoding, UIAppearance, UIAppearanceContainer, UIDynamicItem, UITraitEnvironment, UICoordinateSpace, UIFocusItem, UIFocusItemContainer, CALayerDelegate>
           ^
/Users/admin/builder/spi-builder-workspace/MondrianLayout/Manager/LayoutManager.swift:43:14: error: 'UIView' is unavailable in watchOS
    on view: UIView,
             ^~~~~~
/Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS26.0.sdk/System/Library/Frameworks/UIKit.framework/Headers/UIView.h:147:12: note: 'UIView' has been explicitly marked unavailable here
@interface UIView : UIResponder <NSCoding, UIAppearance, UIAppearanceContainer, UIDynamicItem, UITraitEnvironment, UICoordinateSpace, UIFocusItem, UIFocusItemContainer, CALayerDelegate>
           ^
/Users/admin/builder/spi-builder-workspace/MondrianLayout/Manager/LayoutManager.swift:66:42: warning: 'buildSubviews' is deprecated: Use Mondrian.buildSubviews
    let newContext = targetView.mondrian.buildSubviews(_layoutBuilder)
                                         ^
SwiftCompile normal arm64 /Users/admin/builder/spi-builder-workspace/MondrianLayout/MondrianNamespace.swift (in target 'MondrianLayout' from project 'MondrianLayout')
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode

/Users/admin/builder/spi-builder-workspace/MondrianLayout/MondrianNamespace.swift:12:41: error: 'UIView' is unavailable in watchOS
extension MondrianNamespace where Base: UIView {
                                        ^~~~~~
/Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS26.0.sdk/System/Library/Frameworks/UIKit.framework/Headers/UIView.h:147:12: note: 'UIView' has been explicitly marked unavailable here
@interface UIView : UIResponder <NSCoding, UIAppearance, UIAppearanceContainer, UIDynamicItem, UITraitEnvironment, UICoordinateSpace, UIFocusItem, UIFocusItemContainer, CALayerDelegate>
           ^
/Users/admin/builder/spi-builder-workspace/MondrianLayout/MondrianNamespace.swift:37:41: error: 'UILayoutGuide' is unavailable in watchOS
extension MondrianNamespace where Base: UILayoutGuide {
                                        ^~~~~~~~~~~~~
/Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS26.0.sdk/System/Library/Frameworks/UIKit.framework/Headers/UILayoutGuide.h:24:12: note: 'UILayoutGuide' has been explicitly marked unavailable here
@interface UILayoutGuide : NSObject <NSCoding>
           ^
SwiftCompile normal arm64 Compiling\ ViewBlock.swift,\ ZStackBlock.swift /Users/admin/builder/spi-builder-workspace/MondrianLayout/LayoutBlocks/ViewBlock.swift /Users/admin/builder/spi-builder-workspace/MondrianLayout/LayoutBlocks/ZStackBlock.swift (in target 'MondrianLayout' from project 'MondrianLayout')
SwiftCompile normal arm64 /Users/admin/builder/spi-builder-workspace/MondrianLayout/LayoutBlocks/ViewBlock.swift (in target 'MondrianLayout' from project 'MondrianLayout')
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode

/Users/admin/builder/spi-builder-workspace/MondrianLayout/LayoutBlocks/ViewBlock.swift:26:20: error: 'UIView' is unavailable in watchOS
  public let view: UIView
                   ^~~~~~
/Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS26.0.sdk/System/Library/Frameworks/UIKit.framework/Headers/UIView.h:147:12: note: 'UIView' has been explicitly marked unavailable here
@interface UIView : UIResponder <NSCoding, UIAppearance, UIAppearanceContainer, UIDynamicItem, UITraitEnvironment, UICoordinateSpace, UIFocusItem, UIFocusItemContainer, CALayerDelegate>
           ^
/Users/admin/builder/spi-builder-workspace/MondrianLayout/LayoutBlocks/ViewBlock.swift:30:32: error: 'UILayoutPriority' is unavailable in watchOS
  var verticalHuggingPriority: UILayoutPriority?
                               ^~~~~~~~~~~~~~~~
/Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS26.0.sdk/System/Library/Frameworks/UIKit.framework/Headers/NSLayoutConstraint.h:17:15: note: 'UILayoutPriority' has been explicitly marked unavailable here
typedef float UILayoutPriority NS_TYPED_EXTENSIBLE_ENUM API_UNAVAILABLE(watchos);
              ^
/Users/admin/builder/spi-builder-workspace/MondrianLayout/LayoutBlocks/ViewBlock.swift:31:34: error: 'UILayoutPriority' is unavailable in watchOS
  var horizontalHuggingPriority: UILayoutPriority?
                                 ^~~~~~~~~~~~~~~~
/Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS26.0.sdk/System/Library/Frameworks/UIKit.framework/Headers/NSLayoutConstraint.h:17:15: note: 'UILayoutPriority' has been explicitly marked unavailable here
typedef float UILayoutPriority NS_TYPED_EXTENSIBLE_ENUM API_UNAVAILABLE(watchos);
              ^
/Users/admin/builder/spi-builder-workspace/MondrianLayout/LayoutBlocks/ViewBlock.swift:33:46: error: 'UILayoutPriority' is unavailable in watchOS
  var verticalCompressionResistancePriority: UILayoutPriority?
                                             ^~~~~~~~~~~~~~~~
/Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS26.0.sdk/System/Library/Frameworks/UIKit.framework/Headers/NSLayoutConstraint.h:17:15: note: 'UILayoutPriority' has been explicitly marked unavailable here
typedef float UILayoutPriority NS_TYPED_EXTENSIBLE_ENUM API_UNAVAILABLE(watchos);
              ^
/Users/admin/builder/spi-builder-workspace/MondrianLayout/LayoutBlocks/ViewBlock.swift:34:48: error: 'UILayoutPriority' is unavailable in watchOS
  var horizontalCompressionResistancePriority: UILayoutPriority?
                                               ^~~~~~~~~~~~~~~~
/Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS26.0.sdk/System/Library/Frameworks/UIKit.framework/Headers/NSLayoutConstraint.h:17:15: note: 'UILayoutPriority' has been explicitly marked unavailable here
typedef float UILayoutPriority NS_TYPED_EXTENSIBLE_ENUM API_UNAVAILABLE(watchos);
              ^
/Users/admin/builder/spi-builder-workspace/MondrianLayout/LayoutBlocks/ViewBlock.swift:37:13: error: 'UIView' is unavailable in watchOS
    _ view: UIView
            ^~~~~~
/Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS26.0.sdk/System/Library/Frameworks/UIKit.framework/Headers/UIView.h:147:12: note: 'UIView' has been explicitly marked unavailable here
@interface UIView : UIResponder <NSCoding, UIAppearance, UIAppearanceContainer, UIDynamicItem, UITraitEnvironment, UICoordinateSpace, UIFocusItem, UIFocusItemContainer, CALayerDelegate>
           ^
/Users/admin/builder/spi-builder-workspace/MondrianLayout/LayoutBlocks/ViewBlock.swift:50:17: error: 'UILayoutPriority' is unavailable in watchOS
    _ priority: UILayoutPriority = .required
                ^~~~~~~~~~~~~~~~
/Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS26.0.sdk/System/Library/Frameworks/UIKit.framework/Headers/NSLayoutConstraint.h:17:15: note: 'UILayoutPriority' has been explicitly marked unavailable here
typedef float UILayoutPriority NS_TYPED_EXTENSIBLE_ENUM API_UNAVAILABLE(watchos);
              ^
/Users/admin/builder/spi-builder-workspace/MondrianLayout/LayoutBlocks/ViewBlock.swift:50:37: error: 'required' is unavailable in watchOS
    _ priority: UILayoutPriority = .required
                                    ^~~~~~~~
/Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS26.0.sdk/System/Library/Frameworks/UIKit.framework/Headers/NSLayoutConstraint.h:18:31: note: 'required' has been explicitly marked unavailable here
static const UILayoutPriority UILayoutPriorityRequired API_AVAILABLE(ios(6.0)) API_UNAVAILABLE(watchos) = 1000; // A required constraint.  Do not exceed this.
                              ^
/Users/admin/builder/spi-builder-workspace/MondrianLayout/LayoutBlocks/ViewBlock.swift:64:17: error: 'UILayoutPriority' is unavailable in watchOS
    _ priority: UILayoutPriority = .required
                ^~~~~~~~~~~~~~~~
/Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS26.0.sdk/System/Library/Frameworks/UIKit.framework/Headers/NSLayoutConstraint.h:17:15: note: 'UILayoutPriority' has been explicitly marked unavailable here
typedef float UILayoutPriority NS_TYPED_EXTENSIBLE_ENUM API_UNAVAILABLE(watchos);
              ^
/Users/admin/builder/spi-builder-workspace/MondrianLayout/LayoutBlocks/ViewBlock.swift:64:37: error: 'required' is unavailable in watchOS
    _ priority: UILayoutPriority = .required
                                    ^~~~~~~~
/Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS26.0.sdk/System/Library/Frameworks/UIKit.framework/Headers/NSLayoutConstraint.h:18:31: note: 'required' has been explicitly marked unavailable here
static const UILayoutPriority UILayoutPriorityRequired API_AVAILABLE(ios(6.0)) API_UNAVAILABLE(watchos) = 1000; // A required constraint.  Do not exceed this.
                              ^
/Users/admin/builder/spi-builder-workspace/MondrianLayout/LayoutBlocks/ViewBlock.swift:76:61: error: 'NSLayoutConstraint' is unavailable in watchOS
  func makeConstraintsToEdge(_ element: _LayoutElement) -> [NSLayoutConstraint] {
                                                            ^~~~~~~~~~~~~~~~~~
/Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS26.0.sdk/System/Library/Frameworks/UIKit.framework/Headers/NSLayoutConstraint.h:126:12: note: 'NSLayoutConstraint' has been explicitly marked unavailable here
@interface NSLayoutConstraint : NSObject
           ^
/Users/admin/builder/spi-builder-workspace/MondrianLayout/LayoutBlocks/ViewBlock.swift:108:30: error: 'NSLayoutConstraint' is unavailable in watchOS
  func makeConstraints() -> [NSLayoutConstraint] {
                             ^~~~~~~~~~~~~~~~~~
/Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS26.0.sdk/System/Library/Frameworks/UIKit.framework/Headers/NSLayoutConstraint.h:126:12: note: 'NSLayoutConstraint' has been explicitly marked unavailable here
@interface NSLayoutConstraint : NSObject
           ^
SwiftCompile normal arm64 /Users/admin/builder/spi-builder-workspace/MondrianLayout/LayoutBlocks/ZStackBlock.swift (in target 'MondrianLayout' from project 'MondrianLayout')
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode

/Users/admin/builder/spi-builder-workspace/MondrianLayout/LayoutBlocks/ZStackBlock.swift:271:55: error: 'UILayoutGuide' is unavailable in watchOS
  public static func buildExpression(_ layoutGuides: [UILayoutGuide]...) -> [Component] {
                                                      ^~~~~~~~~~~~~
/Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS26.0.sdk/System/Library/Frameworks/UIKit.framework/Headers/UILayoutGuide.h:24:12: note: 'UILayoutGuide' has been explicitly marked unavailable here
@interface UILayoutGuide : NSObject <NSCoding>
           ^
/Users/admin/builder/spi-builder-workspace/MondrianLayout/LayoutBlocks/ZStackBlock.swift:277:51: error: 'UILayoutGuide' is unavailable in watchOS
  public static func buildExpression<LayoutGuide: UILayoutGuide>(_ layoutGuide: LayoutGuide) -> [Component] {
                                                  ^~~~~~~~~~~~~
/Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS26.0.sdk/System/Library/Frameworks/UIKit.framework/Headers/UILayoutGuide.h:24:12: note: 'UILayoutGuide' has been explicitly marked unavailable here
@interface UILayoutGuide : NSObject <NSCoding>
           ^
/Users/admin/builder/spi-builder-workspace/MondrianLayout/LayoutBlocks/ZStackBlock.swift:283:51: error: 'UILayoutGuide' is unavailable in watchOS
  public static func buildExpression<LayoutGuide: UILayoutGuide>(_ layoutGuide: LayoutGuide?) -> [Component] {
                                                  ^~~~~~~~~~~~~
/Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS26.0.sdk/System/Library/Frameworks/UIKit.framework/Headers/UILayoutGuide.h:24:12: note: 'UILayoutGuide' has been explicitly marked unavailable here
@interface UILayoutGuide : NSObject <NSCoding>
           ^
/Users/admin/builder/spi-builder-workspace/MondrianLayout/LayoutBlocks/ZStackBlock.swift:288:48: error: 'UIView' is unavailable in watchOS
  public static func buildExpression(_ views: [UIView]...) -> [Component] {
                                               ^~~~~~
/Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS26.0.sdk/System/Library/Frameworks/UIKit.framework/Headers/UIView.h:147:12: note: 'UIView' has been explicitly marked unavailable here
@interface UIView : UIResponder <NSCoding, UIAppearance, UIAppearanceContainer, UIDynamicItem, UITraitEnvironment, UICoordinateSpace, UIFocusItem, UIFocusItemContainer, CALayerDelegate>
           ^
/Users/admin/builder/spi-builder-workspace/MondrianLayout/LayoutBlocks/ZStackBlock.swift:294:44: error: 'UIView' is unavailable in watchOS
  public static func buildExpression<View: UIView>(_ view: View) -> [Component] {
                                           ^~~~~~
/Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS26.0.sdk/System/Library/Frameworks/UIKit.framework/Headers/UIView.h:147:12: note: 'UIView' has been explicitly marked unavailable here
@interface UIView : UIResponder <NSCoding, UIAppearance, UIAppearanceContainer, UIDynamicItem, UITraitEnvironment, UICoordinateSpace, UIFocusItem, UIFocusItemContainer, CALayerDelegate>
           ^
/Users/admin/builder/spi-builder-workspace/MondrianLayout/LayoutBlocks/ZStackBlock.swift:300:44: error: 'UIView' is unavailable in watchOS
  public static func buildExpression<View: UIView>(_ view: View?) -> [Component] {
                                           ^~~~~~
/Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS26.0.sdk/System/Library/Frameworks/UIKit.framework/Headers/UIView.h:147:12: note: 'UIView' has been explicitly marked unavailable here
@interface UIView : UIResponder <NSCoding, UIAppearance, UIAppearanceContainer, UIDynamicItem, UITraitEnvironment, UICoordinateSpace, UIFocusItem, UIFocusItemContainer, CALayerDelegate>
           ^
/Users/admin/builder/spi-builder-workspace/MondrianLayout/LayoutBlocks/ZStackBlock.swift:78:31: error: 'NSLayoutConstraint' is unavailable in watchOS
        let baseConstraints: [NSLayoutConstraint] = [
                              ^~~~~~~~~~~~~~~~~~
/Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS26.0.sdk/System/Library/Frameworks/UIKit.framework/Headers/NSLayoutConstraint.h:126:12: note: 'NSLayoutConstraint' has been explicitly marked unavailable here
@interface NSLayoutConstraint : NSObject
           ^
/Users/admin/builder/spi-builder-workspace/MondrianLayout/LayoutBlocks/ZStackBlock.swift:89:14: error: 'fittingSizeLevel' is unavailable in watchOS
            .fittingSizeLevel
             ^~~~~~~~~~~~~~~~
/Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS26.0.sdk/System/Library/Frameworks/UIKit.framework/Headers/NSLayoutConstraint.h:24:31: note: 'fittingSizeLevel' has been explicitly marked unavailable here
static const UILayoutPriority UILayoutPriorityFittingSizeLevel API_AVAILABLE(ios(6.0)) API_UNAVAILABLE(watchos) = 50; // When you send -[UIView systemLayoutSizeFittingSize:], the size fitting most closely to the target size (the argument) is computed.  UILayoutPriorityFittingSizeLevel is the priority level with which the view wants to conform to the target size in that computation.  It's quite low.  It is generally not appropriate to make a constraint at exactly this priority.  You want to be higher or lower.
                              ^
/Users/admin/builder/spi-builder-workspace/MondrianLayout/LayoutBlocks/ZStackBlock.swift:93:14: error: 'fittingSizeLevel' is unavailable in watchOS
            .fittingSizeLevel
             ^~~~~~~~~~~~~~~~
/Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS26.0.sdk/System/Library/Frameworks/UIKit.framework/Headers/NSLayoutConstraint.h:24:31: note: 'fittingSizeLevel' has been explicitly marked unavailable here
static const UILayoutPriority UILayoutPriorityFittingSizeLevel API_AVAILABLE(ios(6.0)) API_UNAVAILABLE(watchos) = 50; // When you send -[UIView systemLayoutSizeFittingSize:], the size fitting most closely to the target size (the argument) is computed.  UILayoutPriorityFittingSizeLevel is the priority level with which the view wants to conform to the target size in that computation.  It's quite low.  It is generally not appropriate to make a constraint at exactly this priority.  You want to be higher or lower.
                              ^
/Users/admin/builder/spi-builder-workspace/MondrianLayout/LayoutBlocks/ZStackBlock.swift:98:27: error: 'NSLayoutConstraint' is unavailable in watchOS
        var constraints: [NSLayoutConstraint] = []
                          ^~~~~~~~~~~~~~~~~~
/Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS26.0.sdk/System/Library/Frameworks/UIKit.framework/Headers/NSLayoutConstraint.h:126:12: note: 'NSLayoutConstraint' has been explicitly marked unavailable here
@interface NSLayoutConstraint : NSObject
           ^
/Users/admin/builder/spi-builder-workspace/MondrianLayout/LayoutBlocks/ZStackBlock.swift:105:16: error: 'defaultHigh' is unavailable in watchOS
              .defaultHigh
               ^~~~~~~~~~~
/Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS26.0.sdk/System/Library/Frameworks/UIKit.framework/Headers/NSLayoutConstraint.h:19:31: note: 'defaultHigh' has been explicitly marked unavailable here
static const UILayoutPriority UILayoutPriorityDefaultHigh API_AVAILABLE(ios(6.0)) API_UNAVAILABLE(watchos) = 750; // This is the priority level with which a button resists compressing its content.
                              ^
/Users/admin/builder/spi-builder-workspace/MondrianLayout/LayoutBlocks/ZStackBlock.swift:109:16: error: 'defaultHigh' is unavailable in watchOS
              .defaultHigh
               ^~~~~~~~~~~
/Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS26.0.sdk/System/Library/Frameworks/UIKit.framework/Headers/NSLayoutConstraint.h:19:31: note: 'defaultHigh' has been explicitly marked unavailable here
static const UILayoutPriority UILayoutPriorityDefaultHigh API_AVAILABLE(ios(6.0)) API_UNAVAILABLE(watchos) = 750; // This is the priority level with which a button resists compressing its content.
                              ^
/Users/admin/builder/spi-builder-workspace/MondrianLayout/LayoutBlocks/ZStackBlock.swift:119:18: error: 'defaultHigh' is unavailable in watchOS
                .defaultHigh
                 ^~~~~~~~~~~
/Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS26.0.sdk/System/Library/Frameworks/UIKit.framework/Headers/NSLayoutConstraint.h:19:31: note: 'defaultHigh' has been explicitly marked unavailable here
static const UILayoutPriority UILayoutPriorityDefaultHigh API_AVAILABLE(ios(6.0)) API_UNAVAILABLE(watchos) = 750; // This is the priority level with which a button resists compressing its content.
                              ^
/Users/admin/builder/spi-builder-workspace/MondrianLayout/LayoutBlocks/ZStackBlock.swift:123:18: error: 'defaultHigh' is unavailable in watchOS
                .defaultHigh
                 ^~~~~~~~~~~
/Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS26.0.sdk/System/Library/Frameworks/UIKit.framework/Headers/NSLayoutConstraint.h:19:31: note: 'defaultHigh' has been explicitly marked unavailable here
static const UILayoutPriority UILayoutPriorityDefaultHigh API_AVAILABLE(ios(6.0)) API_UNAVAILABLE(watchos) = 750; // This is the priority level with which a button resists compressing its content.
                              ^
SwiftCompile normal arm64 Compiling\ LayoutGuideBlock.swift,\ OverlayBlock.swift,\ RelativeBlock.swift /Users/admin/builder/spi-builder-workspace/MondrianLayout/LayoutBlocks/LayoutGuideBlock.swift /Users/admin/builder/spi-builder-workspace/MondrianLayout/LayoutBlocks/OverlayBlock.swift /Users/admin/builder/spi-builder-workspace/MondrianLayout/LayoutBlocks/RelativeBlock.swift (in target 'MondrianLayout' from project 'MondrianLayout')
SwiftCompile normal arm64 /Users/admin/builder/spi-builder-workspace/MondrianLayout/LayoutBlocks/LayoutGuideBlock.swift (in target 'MondrianLayout' from project 'MondrianLayout')
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode

/Users/admin/builder/spi-builder-workspace/MondrianLayout/LayoutBlocks/LayoutGuideBlock.swift:13:27: error: 'UILayoutGuide' is unavailable in watchOS
  public let layoutGuide: UILayoutGuide
                          ^~~~~~~~~~~~~
/Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS26.0.sdk/System/Library/Frameworks/UIKit.framework/Headers/UILayoutGuide.h:24:12: note: 'UILayoutGuide' has been explicitly marked unavailable here
@interface UILayoutGuide : NSObject <NSCoding>
           ^
/Users/admin/builder/spi-builder-workspace/MondrianLayout/LayoutBlocks/LayoutGuideBlock.swift:18:20: error: 'UILayoutGuide' is unavailable in watchOS
    _ layoutGuide: UILayoutGuide
                   ^~~~~~~~~~~~~
/Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS26.0.sdk/System/Library/Frameworks/UIKit.framework/Headers/UILayoutGuide.h:24:12: note: 'UILayoutGuide' has been explicitly marked unavailable here
@interface UILayoutGuide : NSObject <NSCoding>
           ^
/Users/admin/builder/spi-builder-workspace/MondrianLayout/LayoutBlocks/LayoutGuideBlock.swift:23:61: error: 'NSLayoutConstraint' is unavailable in watchOS
  func makeConstraintsToEdge(_ element: _LayoutElement) -> [NSLayoutConstraint] {
                                                            ^~~~~~~~~~~~~~~~~~
/Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS26.0.sdk/System/Library/Frameworks/UIKit.framework/Headers/NSLayoutConstraint.h:126:12: note: 'NSLayoutConstraint' has been explicitly marked unavailable here
@interface NSLayoutConstraint : NSObject
           ^
/Users/admin/builder/spi-builder-workspace/MondrianLayout/LayoutBlocks/LayoutGuideBlock.swift:27:30: error: 'NSLayoutConstraint' is unavailable in watchOS
  func makeConstraints() -> [NSLayoutConstraint] {
                             ^~~~~~~~~~~~~~~~~~
/Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS26.0.sdk/System/Library/Frameworks/UIKit.framework/Headers/NSLayoutConstraint.h:126:12: note: 'NSLayoutConstraint' has been explicitly marked unavailable here
@interface NSLayoutConstraint : NSObject
           ^
/Users/admin/builder/spi-builder-workspace/MondrianLayout/Classic/LayoutDescriptor.swift:209:80: error: 'required' is unavailable in watchOS
    public static func exact(_ value: CGFloat, _ priority: UILayoutPriority = .required) -> Self
                                                                               ^~~~~~~~
/Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS26.0.sdk/System/Library/Frameworks/UIKit.framework/Headers/NSLayoutConstraint.h:18:31: note: 'required' has been explicitly marked unavailable here
static const UILayoutPriority UILayoutPriorityRequired API_AVAILABLE(ios(6.0)) API_UNAVAILABLE(watchos) = 1000; // A required constraint.  Do not exceed this.
                              ^
SwiftCompile normal arm64 /Users/admin/builder/spi-builder-workspace/MondrianLayout/LayoutBlocks/OverlayBlock.swift (in target 'MondrianLayout' from project 'MondrianLayout')
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode

SwiftCompile normal arm64 /Users/admin/builder/spi-builder-workspace/MondrianLayout/LayoutBlocks/RelativeBlock.swift (in target 'MondrianLayout' from project 'MondrianLayout')
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode

/Users/admin/builder/spi-builder-workspace/MondrianLayout/LayoutBlocks/RelativeBlock.swift:109:33: error: 'NSLayoutConstraint' is unavailable in watchOS
      var proposedConstraints: [NSLayoutConstraint] = []
                                ^~~~~~~~~~~~~~~~~~
/Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS26.0.sdk/System/Library/Frameworks/UIKit.framework/Headers/NSLayoutConstraint.h:126:12: note: 'NSLayoutConstraint' has been explicitly marked unavailable here
@interface NSLayoutConstraint : NSObject
           ^
/Users/admin/builder/spi-builder-workspace/MondrianLayout/LayoutBlocks/RelativeBlock.swift:154:15: error: 'NSLayoutConstraint' is unavailable in watchOS
        ] as [NSLayoutConstraint?]).compactMap { $0 }
              ^~~~~~~~~~~~~~~~~~
/Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS26.0.sdk/System/Library/Frameworks/UIKit.framework/Headers/NSLayoutConstraint.h:126:12: note: 'NSLayoutConstraint' has been explicitly marked unavailable here
@interface NSLayoutConstraint : NSObject
           ^
/Users/admin/builder/spi-builder-workspace/MondrianLayout/LayoutBlocks/RelativeBlock.swift:202:18: error: 'defaultHigh' is unavailable in watchOS
                .defaultHigh
                 ^~~~~~~~~~~
/Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS26.0.sdk/System/Library/Frameworks/UIKit.framework/Headers/NSLayoutConstraint.h:19:31: note: 'defaultHigh' has been explicitly marked unavailable here
static const UILayoutPriority UILayoutPriorityDefaultHigh API_AVAILABLE(ios(6.0)) API_UNAVAILABLE(watchos) = 750; // This is the priority level with which a button resists compressing its content.
                              ^
/Users/admin/builder/spi-builder-workspace/MondrianLayout/LayoutBlocks/RelativeBlock.swift:215:18: error: 'defaultHigh' is unavailable in watchOS
                .defaultHigh
                 ^~~~~~~~~~~
/Applications/Xcode-26.0.0-Beta.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS26.0.sdk/System/Library/Frameworks/UIKit.framework/Headers/NSLayoutConstraint.h:19:31: note: 'defaultHigh' has been explicitly marked unavailable here
static const UILayoutPriority UILayoutPriorityDefaultHigh API_AVAILABLE(ios(6.0)) API_UNAVAILABLE(watchos) = 750; // This is the priority level with which a button resists compressing its content.
                              ^
SwiftEmitModule normal arm64 Emitting\ module\ for\ MondrianLayout (in target 'MondrianLayout' from project 'MondrianLayout')
** BUILD FAILED **
The following build commands failed:
	SwiftCompile normal arm64 /Users/admin/builder/spi-builder-workspace/MondrianLayout/Descriptors/VHStackContentBuilder.swift (in target 'MondrianLayout' from project 'MondrianLayout')
	SwiftCompile normal arm64 /Users/admin/builder/spi-builder-workspace/MondrianLayout/Descriptors/_LayoutBlockNode.swift (in target 'MondrianLayout' from project 'MondrianLayout')
	SwiftCompile normal arm64 Compiling\ UIView+Mondrian.swift,\ Utils.swift,\ _LayoutElement.swift /Users/admin/builder/spi-builder-workspace/MondrianLayout/Extensions/UIView+Mondrian.swift /Users/admin/builder/spi-builder-workspace/MondrianLayout/Internal/Utils.swift /Users/admin/builder/spi-builder-workspace/MondrianLayout/Internal/_LayoutElement.swift (in target 'MondrianLayout' from project 'MondrianLayout')
	SwiftCompile normal arm64 /Users/admin/builder/spi-builder-workspace/MondrianLayout/Extensions/UIView+Mondrian.swift (in target 'MondrianLayout' from project 'MondrianLayout')
	SwiftCompile normal arm64 /Users/admin/builder/spi-builder-workspace/MondrianLayout/Internal/_LayoutElement.swift (in target 'MondrianLayout' from project 'MondrianLayout')
	SwiftCompile normal arm64 /Users/admin/builder/spi-builder-workspace/MondrianLayout/LayoutBlocks/BackgroundBlock.swift (in target 'MondrianLayout' from project 'MondrianLayout')
	SwiftCompile normal arm64 /Users/admin/builder/spi-builder-workspace/MondrianLayout/LayoutBlocks/HStackBlock.swift (in target 'MondrianLayout' from project 'MondrianLayout')
	SwiftCompile normal arm64 /Users/admin/builder/spi-builder-workspace/MondrianLayout/LayoutBlocks/LayoutContainer.swift (in target 'MondrianLayout' from project 'MondrianLayout')
	SwiftCompile normal arm64 /Users/admin/builder/spi-builder-workspace/MondrianLayout/EntryPoint.swift (in target 'MondrianLayout' from project 'MondrianLayout')
	SwiftCompile normal arm64 /Users/admin/builder/spi-builder-workspace/MondrianLayout/Extensions/NSLayoutConstraint+.swift (in target 'MondrianLayout' from project 'MondrianLayout')
	SwiftCompile normal arm64 /Users/admin/builder/spi-builder-workspace/MondrianLayout/Extensions/UILayoutGuide+Mondrian.swift (in target 'MondrianLayout' from project 'MondrianLayout')
	SwiftCompile normal arm64 /Users/admin/builder/spi-builder-workspace/MondrianLayout/Descriptors/LayoutBuilderContext.swift (in target 'MondrianLayout' from project 'MondrianLayout')
	SwiftCompile normal arm64 /Users/admin/builder/spi-builder-workspace/MondrianLayout/Classic/LayoutDescriptor.swift (in target 'MondrianLayout' from project 'MondrianLayout')
	SwiftCompile normal arm64 /Users/admin/builder/spi-builder-workspace/MondrianLayout/Descriptors/DimensionDescriptor.swift (in target 'MondrianLayout' from project 'MondrianLayout')
	SwiftCompile normal arm64 /Users/admin/builder/spi-builder-workspace/MondrianLayout/LayoutBlocks/VGridBlock.swift (in target 'MondrianLayout' from project 'MondrianLayout')
	SwiftCompile normal arm64 /Users/admin/builder/spi-builder-workspace/MondrianLayout/LayoutBlocks/VStackBlock.swift (in target 'MondrianLayout' from project 'MondrianLayout')
	SwiftCompile normal arm64 /Users/admin/builder/spi-builder-workspace/MondrianLayout/Manager/LayoutManager.swift (in target 'MondrianLayout' from project 'MondrianLayout')
	SwiftCompile normal arm64 /Users/admin/builder/spi-builder-workspace/MondrianLayout/MondrianNamespace.swift (in target 'MondrianLayout' from project 'MondrianLayout')
	SwiftCompile normal arm64 /Users/admin/builder/spi-builder-workspace/MondrianLayout/LayoutBlocks/ViewBlock.swift (in target 'MondrianLayout' from project 'MondrianLayout')
	SwiftCompile normal arm64 /Users/admin/builder/spi-builder-workspace/MondrianLayout/LayoutBlocks/ZStackBlock.swift (in target 'MondrianLayout' from project 'MondrianLayout')
	SwiftCompile normal arm64 /Users/admin/builder/spi-builder-workspace/MondrianLayout/LayoutBlocks/LayoutGuideBlock.swift (in target 'MondrianLayout' from project 'MondrianLayout')
	SwiftCompile normal arm64 /Users/admin/builder/spi-builder-workspace/MondrianLayout/LayoutBlocks/RelativeBlock.swift (in target 'MondrianLayout' from project 'MondrianLayout')
	Building workspace spi-builder-workspace with scheme MondrianLayout-Package
(23 failures)
BUILD FAILURE 6.2 watchOS