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Build Information

Failed to build Epoxy, reference 0.11.0 (812f9b), with Swift 6.0 for macOS (SPM) on 20 Jun 2025 03:19:48 UTC.

Build Command

env DEVELOPER_DIR=/Applications/Xcode-16.2.0.app xcrun swift build --arch arm64

Build Log

========================================
RunAll
========================================
Builder version: 4.64.0
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/airbnb/epoxy-ios.git
Reference: 0.11.0
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/airbnb/epoxy-ios
 * tag               0.11.0     -> FETCH_HEAD
HEAD is now at 812f9b9 Fix disableKeyboardAvoidance for iOS 26 (#178)
Cloned https://github.com/airbnb/epoxy-ios.git
Revision (git rev-parse @):
812f9b9e36ecfbb1d8a6a497a9e79c703e486393
SPI manifest file found: $PWD/.spi.yml
SUCCESS checkout https://github.com/airbnb/epoxy-ios.git at 0.11.0
========================================
Build
========================================
Selected platform:         macosSpm
Swift version:             6.0
Building package at path:  $PWD
https://github.com/airbnb/epoxy-ios.git
Running build ...
env DEVELOPER_DIR=/Applications/Xcode-16.2.0.app xcrun swift build --arch arm64
[1/1] Compiling plugin FormatSwift
[2/2] Compiling plugin GenerateManual
Building for debugging...
[2/10] Write sources
[9/10] Write swift-version-5BDAB9E9C0126B9D.txt
error: emit-module command failed with exit code 1 (use -v to see invocation)
[11/50] Emitting module EpoxyCore
/Users/admin/builder/spi-builder-workspace/Sources/EpoxyCore/SwiftUI/EpoxySwiftUIIntrinsicContentSizeInvalidator.swift:31:11: error: 'EnvironmentValues' is only available in macOS 10.15 or newer
29 | // MARK: - EnvironmentValues
30 |
31 | extension EnvironmentValues {
   | |         `- error: 'EnvironmentValues' is only available in macOS 10.15 or newer
   | `- note: add @available attribute to enclosing extension
32 |   /// A means of invalidating the intrinsic content size of the parent `EpoxySwiftUIHostingView`.
33 |   public var epoxyIntrinsicContentSizeInvalidator: EpoxyIntrinsicContentSizeInvalidator {
/Users/admin/builder/spi-builder-workspace/Sources/EpoxyCore/SwiftUI/EpoxySwiftUILayoutMargins.swift:16:44: error: 'View' is only available in macOS 10.15 or newer
 6 | // MARK: - View
 7 |
 8 | extension View {
   | `- note: add @available attribute to enclosing extension
 9 |   /// Applies the layout margins from the parent `EpoxySwiftUIHostingView` to this `View`, if there
10 |   /// are any.
   :
14 |   ///
15 |   /// These margins are propagated via the `EnvironmentValues.epoxyLayoutMargins`.
16 |   public func epoxyLayoutMargins() -> some View {
   |               |                            `- error: 'View' is only available in macOS 10.15 or newer
   |               `- note: add @available attribute to enclosing instance method
17 |     modifier(EpoxyLayoutMarginsPadding())
18 |   }
/Users/admin/builder/spi-builder-workspace/Sources/EpoxyCore/SwiftUI/EpoxySwiftUILayoutMargins.swift:8:11: error: 'View' is only available in macOS 10.15 or newer
 6 | // MARK: - View
 7 |
 8 | extension View {
   | |         `- error: 'View' is only available in macOS 10.15 or newer
   | `- note: add @available attribute to enclosing extension
 9 |   /// Applies the layout margins from the parent `EpoxySwiftUIHostingView` to this `View`, if there
10 |   /// are any.
/Users/admin/builder/spi-builder-workspace/Sources/EpoxyCore/SwiftUI/EpoxySwiftUILayoutMargins.swift:25:34: error: 'EdgeInsets' is only available in macOS 10.15 or newer
21 | // MARK: - EnvironmentValues
22 |
23 | extension EnvironmentValues {
   | `- note: add @available attribute to enclosing extension
24 |   /// The layout margins of the parent `EpoxySwiftUIHostingView`, else zero if there is none.
25 |   public var epoxyLayoutMargins: EdgeInsets {
   |              |                   `- error: 'EdgeInsets' is only available in macOS 10.15 or newer
   |              `- note: add @available attribute to enclosing property
26 |     get { self[EpoxyLayoutMarginsKey.self] }
27 |     set { self[EpoxyLayoutMarginsKey.self] = newValue }
/Users/admin/builder/spi-builder-workspace/Sources/EpoxyCore/SwiftUI/EpoxySwiftUILayoutMargins.swift:23:11: error: 'EnvironmentValues' is only available in macOS 10.15 or newer
21 | // MARK: - EnvironmentValues
22 |
23 | extension EnvironmentValues {
   | |         `- error: 'EnvironmentValues' is only available in macOS 10.15 or newer
   | `- note: add @available attribute to enclosing extension
24 |   /// The layout margins of the parent `EpoxySwiftUIHostingView`, else zero if there is none.
25 |   public var epoxyLayoutMargins: EdgeInsets {
/Users/admin/builder/spi-builder-workspace/Sources/EpoxyCore/SwiftUI/EpoxySwiftUILayoutMargins.swift:34:29: error: 'EdgeInsets' is only available in macOS 10.15 or newer
31 | // MARK: - EpoxyLayoutMarginsKey
32 |
33 | private struct EpoxyLayoutMarginsKey: EnvironmentKey {
   |                `- note: add @available attribute to enclosing struct
34 |   static let defaultValue = EdgeInsets()
   |              |              `- error: 'EdgeInsets' is only available in macOS 10.15 or newer
   |              `- note: add @available attribute to enclosing static property
35 | }
36 |
/Users/admin/builder/spi-builder-workspace/Sources/EpoxyCore/SwiftUI/EpoxySwiftUILayoutMargins.swift:42:4: error: 'Environment' is only available in macOS 10.15 or newer
39 | /// A view modifier that applies the layout margins from an enclosing `EpoxySwiftUIHostingView` to
40 | /// the modified `View`.
41 | private struct EpoxyLayoutMarginsPadding: ViewModifier {
   |                `- note: add @available attribute to enclosing struct
42 |   @Environment(\.epoxyLayoutMargins) var epoxyLayoutMargins
   |    `- error: 'Environment' is only available in macOS 10.15 or newer
43 |
44 |   func body(content: Content) -> some View {
/Users/admin/builder/spi-builder-workspace/Sources/EpoxyCore/SwiftUI/EpoxySwiftUILayoutMargins.swift:44:39: error: 'View' is only available in macOS 10.15 or newer
39 | /// A view modifier that applies the layout margins from an enclosing `EpoxySwiftUIHostingView` to
40 | /// the modified `View`.
41 | private struct EpoxyLayoutMarginsPadding: ViewModifier {
   |                `- note: add @available attribute to enclosing struct
42 |   @Environment(\.epoxyLayoutMargins) var epoxyLayoutMargins
43 |
44 |   func body(content: Content) -> some View {
   |        |                              `- error: 'View' is only available in macOS 10.15 or newer
   |        `- note: add @available attribute to enclosing instance method
45 |     content.padding(epoxyLayoutMargins)
46 |   }
/Users/admin/builder/spi-builder-workspace/Sources/EpoxyCore/SwiftUI/SwiftUIView.swift:14:15: warning: conformance of 'Never' to 'View' is only available in macOS 10.15 or newer; this is an error in the Swift 6 language mode
 12 | /// Includes an optional generic `Storage` value, which can be used to compare old and new values
 13 | /// across state changes to prevent redundant view updates.
 14 | public struct SwiftUIView<Content: ViewType, Storage>: MeasuringViewRepresentable,
    |               |- warning: conformance of 'Never' to 'View' is only available in macOS 10.15 or newer; this is an error in the Swift 6 language mode
    |               |- note: add @available attribute to enclosing generic struct
    |               `- note: in associated type 'Self.Body' (inferred as 'Never')
 15 |   UIViewConfiguringSwiftUIView
 16 | {
/Users/admin/builder/spi-builder-workspace/Sources/EpoxyCore/SwiftUI/UIViewConfiguringSwiftUIView.swift:10:47: error: 'View' is only available in macOS 10.15 or newer
 8 | /// A protocol describing a SwiftUI `View` that can configure its `UIView` content via an array of
 9 | /// `configuration` closures.
10 | public protocol UIViewConfiguringSwiftUIView: View {
   |                 |                             `- error: 'View' is only available in macOS 10.15 or newer
   |                 `- note: add @available attribute to enclosing protocol
11 |   /// The context available to this configuration, which provides the `UIView` instance at a minimum
12 |   /// but can include additional context as needed.
/Users/admin/builder/spi-builder-workspace/Sources/EpoxyCore/Views/ViewType.swift:36:42: error: 'NSViewRepresentable' is only available in macOS 10.15 or newer
34 | /// The platform's SwiftUI view representable type.
35 | /// Either `UIViewRepresentable` on iOS/tvOS, or `NSViewRepresentable` on macOS.
36 | public typealias ViewRepresentableType = NSViewRepresentable
   |                                          `- error: 'NSViewRepresentable' is only available in macOS 10.15 or newer
37 |
38 | /// The platform's layout constraint priority type.
[12/54] Compiling EpoxyCore DidDisplayProviding.swift
[13/54] Compiling EpoxyCore DidEndDisplayingProviding.swift
[14/54] Compiling EpoxyCore DidSelectProviding.swift
[15/54] Compiling EpoxyCore ErasedContentProviding.swift
[16/54] Compiling EpoxyCore EpoxyLogger.swift
[17/54] Compiling EpoxyCore CallbackContextEpoxyModeled.swift
[18/54] Compiling EpoxyCore EpoxyModelArrayBuilder.swift
[19/54] Compiling EpoxyCore EpoxyModelProperty.swift
[20/54] Compiling EpoxyCore EpoxyModelStorage.swift
[21/54] Compiling EpoxyCore EpoxyModeled.swift
[22/54] Compiling EpoxyCore AnyEpoxyModelProperty.swift
[23/54] Compiling EpoxyCore ClassReference.swift
[24/54] Compiling EpoxyCore AnimatedProviding.swift
[25/54] Compiling EpoxyCore DataIDProviding.swift
[26/54] Compiling EpoxyCore TraitCollectionProviding.swift
[27/54] Compiling EpoxyCore ViewDifferentiatorProviding.swift
[28/54] Compiling EpoxyCore ViewProviding.swift
[29/54] Compiling EpoxyCore WillDisplayProviding.swift
[30/54] Compiling EpoxyCore EpoxySwiftUILayoutMargins.swift
/Users/admin/builder/spi-builder-workspace/Sources/EpoxyCore/SwiftUI/EpoxySwiftUILayoutMargins.swift:16:44: error: 'View' is only available in macOS 10.15 or newer
 6 | // MARK: - View
 7 |
 8 | extension View {
   | `- note: add @available attribute to enclosing extension
 9 |   /// Applies the layout margins from the parent `EpoxySwiftUIHostingView` to this `View`, if there
10 |   /// are any.
   :
14 |   ///
15 |   /// These margins are propagated via the `EnvironmentValues.epoxyLayoutMargins`.
16 |   public func epoxyLayoutMargins() -> some View {
   |               |                            `- error: 'View' is only available in macOS 10.15 or newer
   |               `- note: add @available attribute to enclosing instance method
17 |     modifier(EpoxyLayoutMarginsPadding())
18 |   }
/Users/admin/builder/spi-builder-workspace/Sources/EpoxyCore/SwiftUI/EpoxySwiftUILayoutMargins.swift:8:11: error: 'View' is only available in macOS 10.15 or newer
 6 | // MARK: - View
 7 |
 8 | extension View {
   | |         `- error: 'View' is only available in macOS 10.15 or newer
   | `- note: add @available attribute to enclosing extension
 9 |   /// Applies the layout margins from the parent `EpoxySwiftUIHostingView` to this `View`, if there
10 |   /// are any.
/Users/admin/builder/spi-builder-workspace/Sources/EpoxyCore/SwiftUI/EpoxySwiftUILayoutMargins.swift:25:34: error: 'EdgeInsets' is only available in macOS 10.15 or newer
21 | // MARK: - EnvironmentValues
22 |
23 | extension EnvironmentValues {
   | `- note: add @available attribute to enclosing extension
24 |   /// The layout margins of the parent `EpoxySwiftUIHostingView`, else zero if there is none.
25 |   public var epoxyLayoutMargins: EdgeInsets {
   |              |                   `- error: 'EdgeInsets' is only available in macOS 10.15 or newer
   |              `- note: add @available attribute to enclosing property
26 |     get { self[EpoxyLayoutMarginsKey.self] }
27 |     set { self[EpoxyLayoutMarginsKey.self] = newValue }
/Users/admin/builder/spi-builder-workspace/Sources/EpoxyCore/SwiftUI/EpoxySwiftUILayoutMargins.swift:23:11: error: 'EnvironmentValues' is only available in macOS 10.15 or newer
21 | // MARK: - EnvironmentValues
22 |
23 | extension EnvironmentValues {
   | |         `- error: 'EnvironmentValues' is only available in macOS 10.15 or newer
   | `- note: add @available attribute to enclosing extension
24 |   /// The layout margins of the parent `EpoxySwiftUIHostingView`, else zero if there is none.
25 |   public var epoxyLayoutMargins: EdgeInsets {
/Users/admin/builder/spi-builder-workspace/Sources/EpoxyCore/SwiftUI/EpoxySwiftUILayoutMargins.swift:34:29: error: 'EdgeInsets' is only available in macOS 10.15 or newer
31 | // MARK: - EpoxyLayoutMarginsKey
32 |
33 | private struct EpoxyLayoutMarginsKey: EnvironmentKey {
   |                `- note: add @available attribute to enclosing struct
34 |   static let defaultValue = EdgeInsets()
   |              |              `- error: 'EdgeInsets' is only available in macOS 10.15 or newer
   |              `- note: add @available attribute to enclosing static property
35 | }
36 |
/Users/admin/builder/spi-builder-workspace/Sources/EpoxyCore/SwiftUI/EpoxySwiftUILayoutMargins.swift:42:4: error: 'Environment' is only available in macOS 10.15 or newer
39 | /// A view modifier that applies the layout margins from an enclosing `EpoxySwiftUIHostingView` to
40 | /// the modified `View`.
41 | private struct EpoxyLayoutMarginsPadding: ViewModifier {
   |                `- note: add @available attribute to enclosing struct
42 |   @Environment(\.epoxyLayoutMargins) var epoxyLayoutMargins
   |    `- error: 'Environment' is only available in macOS 10.15 or newer
43 |
44 |   func body(content: Content) -> some View {
/Users/admin/builder/spi-builder-workspace/Sources/EpoxyCore/SwiftUI/EpoxySwiftUILayoutMargins.swift:44:39: error: 'View' is only available in macOS 10.15 or newer
39 | /// A view modifier that applies the layout margins from an enclosing `EpoxySwiftUIHostingView` to
40 | /// the modified `View`.
41 | private struct EpoxyLayoutMarginsPadding: ViewModifier {
   |                `- note: add @available attribute to enclosing struct
42 |   @Environment(\.epoxyLayoutMargins) var epoxyLayoutMargins
43 |
44 |   func body(content: Content) -> some View {
   |        |                              `- error: 'View' is only available in macOS 10.15 or newer
   |        `- note: add @available attribute to enclosing instance method
45 |     content.padding(epoxyLayoutMargins)
46 |   }
/Users/admin/builder/spi-builder-workspace/Sources/EpoxyCore/SwiftUI/EpoxySwiftUILayoutMargins.swift:17:5: warning: conformance of 'ModifiedContent<Content, Modifier>' to 'View' is only available in macOS 10.15 or newer; this is an error in the Swift 6 language mode
 6 | // MARK: - View
 7 |
 8 | extension View {
   | `- note: add @available attribute to enclosing extension
 9 |   /// Applies the layout margins from the parent `EpoxySwiftUIHostingView` to this `View`, if there
10 |   /// are any.
   :
14 |   ///
15 |   /// These margins are propagated via the `EnvironmentValues.epoxyLayoutMargins`.
16 |   public func epoxyLayoutMargins() -> some View {
   |               `- note: add @available attribute to enclosing instance method
17 |     modifier(EpoxyLayoutMarginsPadding())
   |     |- warning: conformance of 'ModifiedContent<Content, Modifier>' to 'View' is only available in macOS 10.15 or newer; this is an error in the Swift 6 language mode
   |     `- note: add 'if #available' version check
18 |   }
19 | }
/Users/admin/builder/spi-builder-workspace/Sources/EpoxyCore/SwiftUI/EpoxySwiftUILayoutMargins.swift:17:5: error: 'modifier' is only available in macOS 10.15 or newer
 6 | // MARK: - View
 7 |
 8 | extension View {
   | `- note: add @available attribute to enclosing extension
 9 |   /// Applies the layout margins from the parent `EpoxySwiftUIHostingView` to this `View`, if there
10 |   /// are any.
   :
14 |   ///
15 |   /// These margins are propagated via the `EnvironmentValues.epoxyLayoutMargins`.
16 |   public func epoxyLayoutMargins() -> some View {
   |               `- note: add @available attribute to enclosing instance method
17 |     modifier(EpoxyLayoutMarginsPadding())
   |     |- error: 'modifier' is only available in macOS 10.15 or newer
   |     `- note: add 'if #available' version check
18 |   }
19 | }
/Users/admin/builder/spi-builder-workspace/Sources/EpoxyCore/SwiftUI/EpoxySwiftUILayoutMargins.swift:45:13: error: 'padding' is only available in macOS 10.15 or newer
39 | /// A view modifier that applies the layout margins from an enclosing `EpoxySwiftUIHostingView` to
40 | /// the modified `View`.
41 | private struct EpoxyLayoutMarginsPadding: ViewModifier {
   |                `- note: add @available attribute to enclosing struct
42 |   @Environment(\.epoxyLayoutMargins) var epoxyLayoutMargins
43 |
44 |   func body(content: Content) -> some View {
   |        `- note: add @available attribute to enclosing instance method
45 |     content.padding(epoxyLayoutMargins)
   |             |- error: 'padding' is only available in macOS 10.15 or newer
   |             `- note: add 'if #available' version check
46 |   }
47 | }
/Users/admin/builder/spi-builder-workspace/Sources/EpoxyCore/SwiftUI/LayoutUtilities/SwiftUIMeasurementContainer.swift:240:13: error: 'isVerticalContentSizeConstraintActive' is only available in macOS 10.15 or newer
 13 | ///
 14 | /// - SeeAlso: ``MeasuringViewRepresentable``
 15 | public final class SwiftUIMeasurementContainer<Content: ViewType>: ViewType {
    |                    `- note: add @available attribute to enclosing generic class
 16 |
 17 |   // MARK: Lifecycle
    :
213 |
214 |   /// Prioritizes the given constraints based on the provided resolved strategy.
215 |   private func prioritizeConstraints(
    |                `- note: add @available attribute to enclosing instance method
216 |     _ constraints: [NSLayoutConstraint.Attribute: NSLayoutConstraint],
217 |     strategy: ResolvedSwiftUIMeasurementContainerStrategy)
    :
238 |     // equal to their intrinsic content size. These have to be disabled in favor of the constraints
239 |     // we create here.
240 |     content.isVerticalContentSizeConstraintActive = false
    |             |- error: 'isVerticalContentSizeConstraintActive' is only available in macOS 10.15 or newer
    |             `- note: add 'if #available' version check
241 |     content.isHorizontalContentSizeConstraintActive = false
242 |     #endif
/Users/admin/builder/spi-builder-workspace/Sources/EpoxyCore/SwiftUI/LayoutUtilities/SwiftUIMeasurementContainer.swift:241:13: error: 'isHorizontalContentSizeConstraintActive' is only available in macOS 10.15 or newer
 13 | ///
 14 | /// - SeeAlso: ``MeasuringViewRepresentable``
 15 | public final class SwiftUIMeasurementContainer<Content: ViewType>: ViewType {
    |                    `- note: add @available attribute to enclosing generic class
 16 |
 17 |   // MARK: Lifecycle
    :
213 |
214 |   /// Prioritizes the given constraints based on the provided resolved strategy.
215 |   private func prioritizeConstraints(
    |                `- note: add @available attribute to enclosing instance method
216 |     _ constraints: [NSLayoutConstraint.Attribute: NSLayoutConstraint],
217 |     strategy: ResolvedSwiftUIMeasurementContainerStrategy)
    :
239 |     // we create here.
240 |     content.isVerticalContentSizeConstraintActive = false
241 |     content.isHorizontalContentSizeConstraintActive = false
    |             |- error: 'isHorizontalContentSizeConstraintActive' is only available in macOS 10.15 or newer
    |             `- note: add 'if #available' version check
242 |     #endif
243 |   }
[31/54] Compiling EpoxyCore EpoxyableView+SwiftUIView.swift
/Users/admin/builder/spi-builder-workspace/Sources/EpoxyCore/SwiftUI/EpoxySwiftUILayoutMargins.swift:16:44: error: 'View' is only available in macOS 10.15 or newer
 6 | // MARK: - View
 7 |
 8 | extension View {
   | `- note: add @available attribute to enclosing extension
 9 |   /// Applies the layout margins from the parent `EpoxySwiftUIHostingView` to this `View`, if there
10 |   /// are any.
   :
14 |   ///
15 |   /// These margins are propagated via the `EnvironmentValues.epoxyLayoutMargins`.
16 |   public func epoxyLayoutMargins() -> some View {
   |               |                            `- error: 'View' is only available in macOS 10.15 or newer
   |               `- note: add @available attribute to enclosing instance method
17 |     modifier(EpoxyLayoutMarginsPadding())
18 |   }
/Users/admin/builder/spi-builder-workspace/Sources/EpoxyCore/SwiftUI/EpoxySwiftUILayoutMargins.swift:8:11: error: 'View' is only available in macOS 10.15 or newer
 6 | // MARK: - View
 7 |
 8 | extension View {
   | |         `- error: 'View' is only available in macOS 10.15 or newer
   | `- note: add @available attribute to enclosing extension
 9 |   /// Applies the layout margins from the parent `EpoxySwiftUIHostingView` to this `View`, if there
10 |   /// are any.
/Users/admin/builder/spi-builder-workspace/Sources/EpoxyCore/SwiftUI/EpoxySwiftUILayoutMargins.swift:25:34: error: 'EdgeInsets' is only available in macOS 10.15 or newer
21 | // MARK: - EnvironmentValues
22 |
23 | extension EnvironmentValues {
   | `- note: add @available attribute to enclosing extension
24 |   /// The layout margins of the parent `EpoxySwiftUIHostingView`, else zero if there is none.
25 |   public var epoxyLayoutMargins: EdgeInsets {
   |              |                   `- error: 'EdgeInsets' is only available in macOS 10.15 or newer
   |              `- note: add @available attribute to enclosing property
26 |     get { self[EpoxyLayoutMarginsKey.self] }
27 |     set { self[EpoxyLayoutMarginsKey.self] = newValue }
/Users/admin/builder/spi-builder-workspace/Sources/EpoxyCore/SwiftUI/EpoxySwiftUILayoutMargins.swift:23:11: error: 'EnvironmentValues' is only available in macOS 10.15 or newer
21 | // MARK: - EnvironmentValues
22 |
23 | extension EnvironmentValues {
   | |         `- error: 'EnvironmentValues' is only available in macOS 10.15 or newer
   | `- note: add @available attribute to enclosing extension
24 |   /// The layout margins of the parent `EpoxySwiftUIHostingView`, else zero if there is none.
25 |   public var epoxyLayoutMargins: EdgeInsets {
/Users/admin/builder/spi-builder-workspace/Sources/EpoxyCore/SwiftUI/EpoxySwiftUILayoutMargins.swift:34:29: error: 'EdgeInsets' is only available in macOS 10.15 or newer
31 | // MARK: - EpoxyLayoutMarginsKey
32 |
33 | private struct EpoxyLayoutMarginsKey: EnvironmentKey {
   |                `- note: add @available attribute to enclosing struct
34 |   static let defaultValue = EdgeInsets()
   |              |              `- error: 'EdgeInsets' is only available in macOS 10.15 or newer
   |              `- note: add @available attribute to enclosing static property
35 | }
36 |
/Users/admin/builder/spi-builder-workspace/Sources/EpoxyCore/SwiftUI/EpoxySwiftUILayoutMargins.swift:42:4: error: 'Environment' is only available in macOS 10.15 or newer
39 | /// A view modifier that applies the layout margins from an enclosing `EpoxySwiftUIHostingView` to
40 | /// the modified `View`.
41 | private struct EpoxyLayoutMarginsPadding: ViewModifier {
   |                `- note: add @available attribute to enclosing struct
42 |   @Environment(\.epoxyLayoutMargins) var epoxyLayoutMargins
   |    `- error: 'Environment' is only available in macOS 10.15 or newer
43 |
44 |   func body(content: Content) -> some View {
/Users/admin/builder/spi-builder-workspace/Sources/EpoxyCore/SwiftUI/EpoxySwiftUILayoutMargins.swift:44:39: error: 'View' is only available in macOS 10.15 or newer
39 | /// A view modifier that applies the layout margins from an enclosing `EpoxySwiftUIHostingView` to
40 | /// the modified `View`.
41 | private struct EpoxyLayoutMarginsPadding: ViewModifier {
   |                `- note: add @available attribute to enclosing struct
42 |   @Environment(\.epoxyLayoutMargins) var epoxyLayoutMargins
43 |
44 |   func body(content: Content) -> some View {
   |        |                              `- error: 'View' is only available in macOS 10.15 or newer
   |        `- note: add @available attribute to enclosing instance method
45 |     content.padding(epoxyLayoutMargins)
46 |   }
/Users/admin/builder/spi-builder-workspace/Sources/EpoxyCore/SwiftUI/EpoxySwiftUILayoutMargins.swift:17:5: warning: conformance of 'ModifiedContent<Content, Modifier>' to 'View' is only available in macOS 10.15 or newer; this is an error in the Swift 6 language mode
 6 | // MARK: - View
 7 |
 8 | extension View {
   | `- note: add @available attribute to enclosing extension
 9 |   /// Applies the layout margins from the parent `EpoxySwiftUIHostingView` to this `View`, if there
10 |   /// are any.
   :
14 |   ///
15 |   /// These margins are propagated via the `EnvironmentValues.epoxyLayoutMargins`.
16 |   public func epoxyLayoutMargins() -> some View {
   |               `- note: add @available attribute to enclosing instance method
17 |     modifier(EpoxyLayoutMarginsPadding())
   |     |- warning: conformance of 'ModifiedContent<Content, Modifier>' to 'View' is only available in macOS 10.15 or newer; this is an error in the Swift 6 language mode
   |     `- note: add 'if #available' version check
18 |   }
19 | }
/Users/admin/builder/spi-builder-workspace/Sources/EpoxyCore/SwiftUI/EpoxySwiftUILayoutMargins.swift:17:5: error: 'modifier' is only available in macOS 10.15 or newer
 6 | // MARK: - View
 7 |
 8 | extension View {
   | `- note: add @available attribute to enclosing extension
 9 |   /// Applies the layout margins from the parent `EpoxySwiftUIHostingView` to this `View`, if there
10 |   /// are any.
   :
14 |   ///
15 |   /// These margins are propagated via the `EnvironmentValues.epoxyLayoutMargins`.
16 |   public func epoxyLayoutMargins() -> some View {
   |               `- note: add @available attribute to enclosing instance method
17 |     modifier(EpoxyLayoutMarginsPadding())
   |     |- error: 'modifier' is only available in macOS 10.15 or newer
   |     `- note: add 'if #available' version check
18 |   }
19 | }
/Users/admin/builder/spi-builder-workspace/Sources/EpoxyCore/SwiftUI/EpoxySwiftUILayoutMargins.swift:45:13: error: 'padding' is only available in macOS 10.15 or newer
39 | /// A view modifier that applies the layout margins from an enclosing `EpoxySwiftUIHostingView` to
40 | /// the modified `View`.
41 | private struct EpoxyLayoutMarginsPadding: ViewModifier {
   |                `- note: add @available attribute to enclosing struct
42 |   @Environment(\.epoxyLayoutMargins) var epoxyLayoutMargins
43 |
44 |   func body(content: Content) -> some View {
   |        `- note: add @available attribute to enclosing instance method
45 |     content.padding(epoxyLayoutMargins)
   |             |- error: 'padding' is only available in macOS 10.15 or newer
   |             `- note: add 'if #available' version check
46 |   }
47 | }
/Users/admin/builder/spi-builder-workspace/Sources/EpoxyCore/SwiftUI/LayoutUtilities/SwiftUIMeasurementContainer.swift:240:13: error: 'isVerticalContentSizeConstraintActive' is only available in macOS 10.15 or newer
 13 | ///
 14 | /// - SeeAlso: ``MeasuringViewRepresentable``
 15 | public final class SwiftUIMeasurementContainer<Content: ViewType>: ViewType {
    |                    `- note: add @available attribute to enclosing generic class
 16 |
 17 |   // MARK: Lifecycle
    :
213 |
214 |   /// Prioritizes the given constraints based on the provided resolved strategy.
215 |   private func prioritizeConstraints(
    |                `- note: add @available attribute to enclosing instance method
216 |     _ constraints: [NSLayoutConstraint.Attribute: NSLayoutConstraint],
217 |     strategy: ResolvedSwiftUIMeasurementContainerStrategy)
    :
238 |     // equal to their intrinsic content size. These have to be disabled in favor of the constraints
239 |     // we create here.
240 |     content.isVerticalContentSizeConstraintActive = false
    |             |- error: 'isVerticalContentSizeConstraintActive' is only available in macOS 10.15 or newer
    |             `- note: add 'if #available' version check
241 |     content.isHorizontalContentSizeConstraintActive = false
242 |     #endif
/Users/admin/builder/spi-builder-workspace/Sources/EpoxyCore/SwiftUI/LayoutUtilities/SwiftUIMeasurementContainer.swift:241:13: error: 'isHorizontalContentSizeConstraintActive' is only available in macOS 10.15 or newer
 13 | ///
 14 | /// - SeeAlso: ``MeasuringViewRepresentable``
 15 | public final class SwiftUIMeasurementContainer<Content: ViewType>: ViewType {
    |                    `- note: add @available attribute to enclosing generic class
 16 |
 17 |   // MARK: Lifecycle
    :
213 |
214 |   /// Prioritizes the given constraints based on the provided resolved strategy.
215 |   private func prioritizeConstraints(
    |                `- note: add @available attribute to enclosing instance method
216 |     _ constraints: [NSLayoutConstraint.Attribute: NSLayoutConstraint],
217 |     strategy: ResolvedSwiftUIMeasurementContainerStrategy)
    :
239 |     // we create here.
240 |     content.isVerticalContentSizeConstraintActive = false
241 |     content.isHorizontalContentSizeConstraintActive = false
    |             |- error: 'isHorizontalContentSizeConstraintActive' is only available in macOS 10.15 or newer
    |             `- note: add 'if #available' version check
242 |     #endif
243 |   }
[32/54] Compiling EpoxyCore MeasuringViewRepresentable.swift
/Users/admin/builder/spi-builder-workspace/Sources/EpoxyCore/SwiftUI/EpoxySwiftUILayoutMargins.swift:16:44: error: 'View' is only available in macOS 10.15 or newer
 6 | // MARK: - View
 7 |
 8 | extension View {
   | `- note: add @available attribute to enclosing extension
 9 |   /// Applies the layout margins from the parent `EpoxySwiftUIHostingView` to this `View`, if there
10 |   /// are any.
   :
14 |   ///
15 |   /// These margins are propagated via the `EnvironmentValues.epoxyLayoutMargins`.
16 |   public func epoxyLayoutMargins() -> some View {
   |               |                            `- error: 'View' is only available in macOS 10.15 or newer
   |               `- note: add @available attribute to enclosing instance method
17 |     modifier(EpoxyLayoutMarginsPadding())
18 |   }
/Users/admin/builder/spi-builder-workspace/Sources/EpoxyCore/SwiftUI/EpoxySwiftUILayoutMargins.swift:8:11: error: 'View' is only available in macOS 10.15 or newer
 6 | // MARK: - View
 7 |
 8 | extension View {
   | |         `- error: 'View' is only available in macOS 10.15 or newer
   | `- note: add @available attribute to enclosing extension
 9 |   /// Applies the layout margins from the parent `EpoxySwiftUIHostingView` to this `View`, if there
10 |   /// are any.
/Users/admin/builder/spi-builder-workspace/Sources/EpoxyCore/SwiftUI/EpoxySwiftUILayoutMargins.swift:25:34: error: 'EdgeInsets' is only available in macOS 10.15 or newer
21 | // MARK: - EnvironmentValues
22 |
23 | extension EnvironmentValues {
   | `- note: add @available attribute to enclosing extension
24 |   /// The layout margins of the parent `EpoxySwiftUIHostingView`, else zero if there is none.
25 |   public var epoxyLayoutMargins: EdgeInsets {
   |              |                   `- error: 'EdgeInsets' is only available in macOS 10.15 or newer
   |              `- note: add @available attribute to enclosing property
26 |     get { self[EpoxyLayoutMarginsKey.self] }
27 |     set { self[EpoxyLayoutMarginsKey.self] = newValue }
/Users/admin/builder/spi-builder-workspace/Sources/EpoxyCore/SwiftUI/EpoxySwiftUILayoutMargins.swift:23:11: error: 'EnvironmentValues' is only available in macOS 10.15 or newer
21 | // MARK: - EnvironmentValues
22 |
23 | extension EnvironmentValues {
   | |         `- error: 'EnvironmentValues' is only available in macOS 10.15 or newer
   | `- note: add @available attribute to enclosing extension
24 |   /// The layout margins of the parent `EpoxySwiftUIHostingView`, else zero if there is none.
25 |   public var epoxyLayoutMargins: EdgeInsets {
/Users/admin/builder/spi-builder-workspace/Sources/EpoxyCore/SwiftUI/EpoxySwiftUILayoutMargins.swift:34:29: error: 'EdgeInsets' is only available in macOS 10.15 or newer
31 | // MARK: - EpoxyLayoutMarginsKey
32 |
33 | private struct EpoxyLayoutMarginsKey: EnvironmentKey {
   |                `- note: add @available attribute to enclosing struct
34 |   static let defaultValue = EdgeInsets()
   |              |              `- error: 'EdgeInsets' is only available in macOS 10.15 or newer
   |              `- note: add @available attribute to enclosing static property
35 | }
36 |
/Users/admin/builder/spi-builder-workspace/Sources/EpoxyCore/SwiftUI/EpoxySwiftUILayoutMargins.swift:42:4: error: 'Environment' is only available in macOS 10.15 or newer
39 | /// A view modifier that applies the layout margins from an enclosing `EpoxySwiftUIHostingView` to
40 | /// the modified `View`.
41 | private struct EpoxyLayoutMarginsPadding: ViewModifier {
   |                `- note: add @available attribute to enclosing struct
42 |   @Environment(\.epoxyLayoutMargins) var epoxyLayoutMargins
   |    `- error: 'Environment' is only available in macOS 10.15 or newer
43 |
44 |   func body(content: Content) -> some View {
/Users/admin/builder/spi-builder-workspace/Sources/EpoxyCore/SwiftUI/EpoxySwiftUILayoutMargins.swift:44:39: error: 'View' is only available in macOS 10.15 or newer
39 | /// A view modifier that applies the layout margins from an enclosing `EpoxySwiftUIHostingView` to
40 | /// the modified `View`.
41 | private struct EpoxyLayoutMarginsPadding: ViewModifier {
   |                `- note: add @available attribute to enclosing struct
42 |   @Environment(\.epoxyLayoutMargins) var epoxyLayoutMargins
43 |
44 |   func body(content: Content) -> some View {
   |        |                              `- error: 'View' is only available in macOS 10.15 or newer
   |        `- note: add @available attribute to enclosing instance method
45 |     content.padding(epoxyLayoutMargins)
46 |   }
/Users/admin/builder/spi-builder-workspace/Sources/EpoxyCore/SwiftUI/EpoxySwiftUILayoutMargins.swift:17:5: warning: conformance of 'ModifiedContent<Content, Modifier>' to 'View' is only available in macOS 10.15 or newer; this is an error in the Swift 6 language mode
 6 | // MARK: - View
 7 |
 8 | extension View {
   | `- note: add @available attribute to enclosing extension
 9 |   /// Applies the layout margins from the parent `EpoxySwiftUIHostingView` to this `View`, if there
10 |   /// are any.
   :
14 |   ///
15 |   /// These margins are propagated via the `EnvironmentValues.epoxyLayoutMargins`.
16 |   public func epoxyLayoutMargins() -> some View {
   |               `- note: add @available attribute to enclosing instance method
17 |     modifier(EpoxyLayoutMarginsPadding())
   |     |- warning: conformance of 'ModifiedContent<Content, Modifier>' to 'View' is only available in macOS 10.15 or newer; this is an error in the Swift 6 language mode
   |     `- note: add 'if #available' version check
18 |   }
19 | }
/Users/admin/builder/spi-builder-workspace/Sources/EpoxyCore/SwiftUI/EpoxySwiftUILayoutMargins.swift:17:5: error: 'modifier' is only available in macOS 10.15 or newer
 6 | // MARK: - View
 7 |
 8 | extension View {
   | `- note: add @available attribute to enclosing extension
 9 |   /// Applies the layout margins from the parent `EpoxySwiftUIHostingView` to this `View`, if there
10 |   /// are any.
   :
14 |   ///
15 |   /// These margins are propagated via the `EnvironmentValues.epoxyLayoutMargins`.
16 |   public func epoxyLayoutMargins() -> some View {
   |               `- note: add @available attribute to enclosing instance method
17 |     modifier(EpoxyLayoutMarginsPadding())
   |     |- error: 'modifier' is only available in macOS 10.15 or newer
   |     `- note: add 'if #available' version check
18 |   }
19 | }
/Users/admin/builder/spi-builder-workspace/Sources/EpoxyCore/SwiftUI/EpoxySwiftUILayoutMargins.swift:45:13: error: 'padding' is only available in macOS 10.15 or newer
39 | /// A view modifier that applies the layout margins from an enclosing `EpoxySwiftUIHostingView` to
40 | /// the modified `View`.
41 | private struct EpoxyLayoutMarginsPadding: ViewModifier {
   |                `- note: add @available attribute to enclosing struct
42 |   @Environment(\.epoxyLayoutMargins) var epoxyLayoutMargins
43 |
44 |   func body(content: Content) -> some View {
   |        `- note: add @available attribute to enclosing instance method
45 |     content.padding(epoxyLayoutMargins)
   |             |- error: 'padding' is only available in macOS 10.15 or newer
   |             `- note: add 'if #available' version check
46 |   }
47 | }
/Users/admin/builder/spi-builder-workspace/Sources/EpoxyCore/SwiftUI/LayoutUtilities/SwiftUIMeasurementContainer.swift:240:13: error: 'isVerticalContentSizeConstraintActive' is only available in macOS 10.15 or newer
 13 | ///
 14 | /// - SeeAlso: ``MeasuringViewRepresentable``
 15 | public final class SwiftUIMeasurementContainer<Content: ViewType>: ViewType {
    |                    `- note: add @available attribute to enclosing generic class
 16 |
 17 |   // MARK: Lifecycle
    :
213 |
214 |   /// Prioritizes the given constraints based on the provided resolved strategy.
215 |   private func prioritizeConstraints(
    |                `- note: add @available attribute to enclosing instance method
216 |     _ constraints: [NSLayoutConstraint.Attribute: NSLayoutConstraint],
217 |     strategy: ResolvedSwiftUIMeasurementContainerStrategy)
    :
238 |     // equal to their intrinsic content size. These have to be disabled in favor of the constraints
239 |     // we create here.
240 |     content.isVerticalContentSizeConstraintActive = false
    |             |- error: 'isVerticalContentSizeConstraintActive' is only available in macOS 10.15 or newer
    |             `- note: add 'if #available' version check
241 |     content.isHorizontalContentSizeConstraintActive = false
242 |     #endif
/Users/admin/builder/spi-builder-workspace/Sources/EpoxyCore/SwiftUI/LayoutUtilities/SwiftUIMeasurementContainer.swift:241:13: error: 'isHorizontalContentSizeConstraintActive' is only available in macOS 10.15 or newer
 13 | ///
 14 | /// - SeeAlso: ``MeasuringViewRepresentable``
 15 | public final class SwiftUIMeasurementContainer<Content: ViewType>: ViewType {
    |                    `- note: add @available attribute to enclosing generic class
 16 |
 17 |   // MARK: Lifecycle
    :
213 |
214 |   /// Prioritizes the given constraints based on the provided resolved strategy.
215 |   private func prioritizeConstraints(
    |                `- note: add @available attribute to enclosing instance method
216 |     _ constraints: [NSLayoutConstraint.Attribute: NSLayoutConstraint],
217 |     strategy: ResolvedSwiftUIMeasurementContainerStrategy)
    :
239 |     // we create here.
240 |     content.isVerticalContentSizeConstraintActive = false
241 |     content.isHorizontalContentSizeConstraintActive = false
    |             |- error: 'isHorizontalContentSizeConstraintActive' is only available in macOS 10.15 or newer
    |             `- note: add 'if #available' version check
242 |     #endif
243 |   }
[33/54] Compiling EpoxyCore SwiftUIMeasurementContainer.swift
/Users/admin/builder/spi-builder-workspace/Sources/EpoxyCore/SwiftUI/EpoxySwiftUILayoutMargins.swift:16:44: error: 'View' is only available in macOS 10.15 or newer
 6 | // MARK: - View
 7 |
 8 | extension View {
   | `- note: add @available attribute to enclosing extension
 9 |   /// Applies the layout margins from the parent `EpoxySwiftUIHostingView` to this `View`, if there
10 |   /// are any.
   :
14 |   ///
15 |   /// These margins are propagated via the `EnvironmentValues.epoxyLayoutMargins`.
16 |   public func epoxyLayoutMargins() -> some View {
   |               |                            `- error: 'View' is only available in macOS 10.15 or newer
   |               `- note: add @available attribute to enclosing instance method
17 |     modifier(EpoxyLayoutMarginsPadding())
18 |   }
/Users/admin/builder/spi-builder-workspace/Sources/EpoxyCore/SwiftUI/EpoxySwiftUILayoutMargins.swift:8:11: error: 'View' is only available in macOS 10.15 or newer
 6 | // MARK: - View
 7 |
 8 | extension View {
   | |         `- error: 'View' is only available in macOS 10.15 or newer
   | `- note: add @available attribute to enclosing extension
 9 |   /// Applies the layout margins from the parent `EpoxySwiftUIHostingView` to this `View`, if there
10 |   /// are any.
/Users/admin/builder/spi-builder-workspace/Sources/EpoxyCore/SwiftUI/EpoxySwiftUILayoutMargins.swift:25:34: error: 'EdgeInsets' is only available in macOS 10.15 or newer
21 | // MARK: - EnvironmentValues
22 |
23 | extension EnvironmentValues {
   | `- note: add @available attribute to enclosing extension
24 |   /// The layout margins of the parent `EpoxySwiftUIHostingView`, else zero if there is none.
25 |   public var epoxyLayoutMargins: EdgeInsets {
   |              |                   `- error: 'EdgeInsets' is only available in macOS 10.15 or newer
   |              `- note: add @available attribute to enclosing property
26 |     get { self[EpoxyLayoutMarginsKey.self] }
27 |     set { self[EpoxyLayoutMarginsKey.self] = newValue }
/Users/admin/builder/spi-builder-workspace/Sources/EpoxyCore/SwiftUI/EpoxySwiftUILayoutMargins.swift:23:11: error: 'EnvironmentValues' is only available in macOS 10.15 or newer
21 | // MARK: - EnvironmentValues
22 |
23 | extension EnvironmentValues {
   | |         `- error: 'EnvironmentValues' is only available in macOS 10.15 or newer
   | `- note: add @available attribute to enclosing extension
24 |   /// The layout margins of the parent `EpoxySwiftUIHostingView`, else zero if there is none.
25 |   public var epoxyLayoutMargins: EdgeInsets {
/Users/admin/builder/spi-builder-workspace/Sources/EpoxyCore/SwiftUI/EpoxySwiftUILayoutMargins.swift:34:29: error: 'EdgeInsets' is only available in macOS 10.15 or newer
31 | // MARK: - EpoxyLayoutMarginsKey
32 |
33 | private struct EpoxyLayoutMarginsKey: EnvironmentKey {
   |                `- note: add @available attribute to enclosing struct
34 |   static let defaultValue = EdgeInsets()
   |              |              `- error: 'EdgeInsets' is only available in macOS 10.15 or newer
   |              `- note: add @available attribute to enclosing static property
35 | }
36 |
/Users/admin/builder/spi-builder-workspace/Sources/EpoxyCore/SwiftUI/EpoxySwiftUILayoutMargins.swift:42:4: error: 'Environment' is only available in macOS 10.15 or newer
39 | /// A view modifier that applies the layout margins from an enclosing `EpoxySwiftUIHostingView` to
40 | /// the modified `View`.
41 | private struct EpoxyLayoutMarginsPadding: ViewModifier {
   |                `- note: add @available attribute to enclosing struct
42 |   @Environment(\.epoxyLayoutMargins) var epoxyLayoutMargins
   |    `- error: 'Environment' is only available in macOS 10.15 or newer
43 |
44 |   func body(content: Content) -> some View {
/Users/admin/builder/spi-builder-workspace/Sources/EpoxyCore/SwiftUI/EpoxySwiftUILayoutMargins.swift:44:39: error: 'View' is only available in macOS 10.15 or newer
39 | /// A view modifier that applies the layout margins from an enclosing `EpoxySwiftUIHostingView` to
40 | /// the modified `View`.
41 | private struct EpoxyLayoutMarginsPadding: ViewModifier {
   |                `- note: add @available attribute to enclosing struct
42 |   @Environment(\.epoxyLayoutMargins) var epoxyLayoutMargins
43 |
44 |   func body(content: Content) -> some View {
   |        |                              `- error: 'View' is only available in macOS 10.15 or newer
   |        `- note: add @available attribute to enclosing instance method
45 |     content.padding(epoxyLayoutMargins)
46 |   }
/Users/admin/builder/spi-builder-workspace/Sources/EpoxyCore/SwiftUI/EpoxySwiftUILayoutMargins.swift:17:5: warning: conformance of 'ModifiedContent<Content, Modifier>' to 'View' is only available in macOS 10.15 or newer; this is an error in the Swift 6 language mode
 6 | // MARK: - View
 7 |
 8 | extension View {
   | `- note: add @available attribute to enclosing extension
 9 |   /// Applies the layout margins from the parent `EpoxySwiftUIHostingView` to this `View`, if there
10 |   /// are any.
   :
14 |   ///
15 |   /// These margins are propagated via the `EnvironmentValues.epoxyLayoutMargins`.
16 |   public func epoxyLayoutMargins() -> some View {
   |               `- note: add @available attribute to enclosing instance method
17 |     modifier(EpoxyLayoutMarginsPadding())
   |     |- warning: conformance of 'ModifiedContent<Content, Modifier>' to 'View' is only available in macOS 10.15 or newer; this is an error in the Swift 6 language mode
   |     `- note: add 'if #available' version check
18 |   }
19 | }
/Users/admin/builder/spi-builder-workspace/Sources/EpoxyCore/SwiftUI/EpoxySwiftUILayoutMargins.swift:17:5: error: 'modifier' is only available in macOS 10.15 or newer
 6 | // MARK: - View
 7 |
 8 | extension View {
   | `- note: add @available attribute to enclosing extension
 9 |   /// Applies the layout margins from the parent `EpoxySwiftUIHostingView` to this `View`, if there
10 |   /// are any.
   :
14 |   ///
15 |   /// These margins are propagated via the `EnvironmentValues.epoxyLayoutMargins`.
16 |   public func epoxyLayoutMargins() -> some View {
   |               `- note: add @available attribute to enclosing instance method
17 |     modifier(EpoxyLayoutMarginsPadding())
   |     |- error: 'modifier' is only available in macOS 10.15 or newer
   |     `- note: add 'if #available' version check
18 |   }
19 | }
/Users/admin/builder/spi-builder-workspace/Sources/EpoxyCore/SwiftUI/EpoxySwiftUILayoutMargins.swift:45:13: error: 'padding' is only available in macOS 10.15 or newer
39 | /// A view modifier that applies the layout margins from an enclosing `EpoxySwiftUIHostingView` to
40 | /// the modified `View`.
41 | private struct EpoxyLayoutMarginsPadding: ViewModifier {
   |                `- note: add @available attribute to enclosing struct
42 |   @Environment(\.epoxyLayoutMargins) var epoxyLayoutMargins
43 |
44 |   func body(content: Content) -> some View {
   |        `- note: add @available attribute to enclosing instance method
45 |     content.padding(epoxyLayoutMargins)
   |             |- error: 'padding' is only available in macOS 10.15 or newer
   |             `- note: add 'if #available' version check
46 |   }
47 | }
/Users/admin/builder/spi-builder-workspace/Sources/EpoxyCore/SwiftUI/LayoutUtilities/SwiftUIMeasurementContainer.swift:240:13: error: 'isVerticalContentSizeConstraintActive' is only available in macOS 10.15 or newer
 13 | ///
 14 | /// - SeeAlso: ``MeasuringViewRepresentable``
 15 | public final class SwiftUIMeasurementContainer<Content: ViewType>: ViewType {
    |                    `- note: add @available attribute to enclosing generic class
 16 |
 17 |   // MARK: Lifecycle
    :
213 |
214 |   /// Prioritizes the given constraints based on the provided resolved strategy.
215 |   private func prioritizeConstraints(
    |                `- note: add @available attribute to enclosing instance method
216 |     _ constraints: [NSLayoutConstraint.Attribute: NSLayoutConstraint],
217 |     strategy: ResolvedSwiftUIMeasurementContainerStrategy)
    :
238 |     // equal to their intrinsic content size. These have to be disabled in favor of the constraints
239 |     // we create here.
240 |     content.isVerticalContentSizeConstraintActive = false
    |             |- error: 'isVerticalContentSizeConstraintActive' is only available in macOS 10.15 or newer
    |             `- note: add 'if #available' version check
241 |     content.isHorizontalContentSizeConstraintActive = false
242 |     #endif
/Users/admin/builder/spi-builder-workspace/Sources/EpoxyCore/SwiftUI/LayoutUtilities/SwiftUIMeasurementContainer.swift:241:13: error: 'isHorizontalContentSizeConstraintActive' is only available in macOS 10.15 or newer
 13 | ///
 14 | /// - SeeAlso: ``MeasuringViewRepresentable``
 15 | public final class SwiftUIMeasurementContainer<Content: ViewType>: ViewType {
    |                    `- note: add @available attribute to enclosing generic class
 16 |
 17 |   // MARK: Lifecycle
    :
213 |
214 |   /// Prioritizes the given constraints based on the provided resolved strategy.
215 |   private func prioritizeConstraints(
    |                `- note: add @available attribute to enclosing instance method
216 |     _ constraints: [NSLayoutConstraint.Attribute: NSLayoutConstraint],
217 |     strategy: ResolvedSwiftUIMeasurementContainerStrategy)
    :
239 |     // we create here.
240 |     content.isVerticalContentSizeConstraintActive = false
241 |     content.isHorizontalContentSizeConstraintActive = false
    |             |- error: 'isHorizontalContentSizeConstraintActive' is only available in macOS 10.15 or newer
    |             `- note: add 'if #available' version check
242 |     #endif
243 |   }
[34/54] Compiling EpoxyCore ViewEpoxyModeled.swift
/Users/admin/builder/spi-builder-workspace/Sources/EpoxyCore/SwiftUI/EpoxySwiftUIIntrinsicContentSizeInvalidator.swift:31:11: error: 'EnvironmentValues' is only available in macOS 10.15 or newer
29 | // MARK: - EnvironmentValues
30 |
31 | extension EnvironmentValues {
   | |         `- error: 'EnvironmentValues' is only available in macOS 10.15 or newer
   | `- note: add @available attribute to enclosing extension
32 |   /// A means of invalidating the intrinsic content size of the parent `EpoxySwiftUIHostingView`.
33 |   public var epoxyIntrinsicContentSizeInvalidator: EpoxyIntrinsicContentSizeInvalidator {
[35/54] Compiling EpoxyCore EpoxySwiftUIHostingController.swift
/Users/admin/builder/spi-builder-workspace/Sources/EpoxyCore/SwiftUI/EpoxySwiftUIIntrinsicContentSizeInvalidator.swift:31:11: error: 'EnvironmentValues' is only available in macOS 10.15 or newer
29 | // MARK: - EnvironmentValues
30 |
31 | extension EnvironmentValues {
   | |         `- error: 'EnvironmentValues' is only available in macOS 10.15 or newer
   | `- note: add @available attribute to enclosing extension
32 |   /// A means of invalidating the intrinsic content size of the parent `EpoxySwiftUIHostingView`.
33 |   public var epoxyIntrinsicContentSizeInvalidator: EpoxyIntrinsicContentSizeInvalidator {
[36/54] Compiling EpoxyCore EpoxySwiftUIHostingView.swift
/Users/admin/builder/spi-builder-workspace/Sources/EpoxyCore/SwiftUI/EpoxySwiftUIIntrinsicContentSizeInvalidator.swift:31:11: error: 'EnvironmentValues' is only available in macOS 10.15 or newer
29 | // MARK: - EnvironmentValues
30 |
31 | extension EnvironmentValues {
   | |         `- error: 'EnvironmentValues' is only available in macOS 10.15 or newer
   | `- note: add @available attribute to enclosing extension
32 |   /// A means of invalidating the intrinsic content size of the parent `EpoxySwiftUIHostingView`.
33 |   public var epoxyIntrinsicContentSizeInvalidator: EpoxyIntrinsicContentSizeInvalidator {
[37/54] Compiling EpoxyCore EpoxySwiftUIIntrinsicContentSizeInvalidator.swift
/Users/admin/builder/spi-builder-workspace/Sources/EpoxyCore/SwiftUI/EpoxySwiftUIIntrinsicContentSizeInvalidator.swift:31:11: error: 'EnvironmentValues' is only available in macOS 10.15 or newer
29 | // MARK: - EnvironmentValues
30 |
31 | extension EnvironmentValues {
   | |         `- error: 'EnvironmentValues' is only available in macOS 10.15 or newer
   | `- note: add @available attribute to enclosing extension
32 |   /// A means of invalidating the intrinsic content size of the parent `EpoxySwiftUIHostingView`.
33 |   public var epoxyIntrinsicContentSizeInvalidator: EpoxyIntrinsicContentSizeInvalidator {
[38/54] Compiling EpoxyCore Collection+Diff.swift
[39/54] Compiling EpoxyCore Diffable.swift
[40/54] Compiling EpoxyCore DiffableSection.swift
[41/54] Compiling EpoxyCore IndexChangeset.swift
[42/54] Compiling EpoxyCore SectionedChangeset.swift
[43/54] Compiling EpoxyCore MakeViewProviding.swift
[44/54] Compiling EpoxyCore SetBehaviorsProviding.swift
[45/54] Compiling EpoxyCore SetContentProviding.swift
[46/54] Compiling EpoxyCore StyleIDProviding.swift
[47/54] Compiling EpoxyCore SwiftUIView.swift
/Users/admin/builder/spi-builder-workspace/Sources/EpoxyCore/SwiftUI/SwiftUIView.swift:14:15: warning: conformance of 'Never' to 'View' is only available in macOS 10.15 or newer; this is an error in the Swift 6 language mode
 12 | /// Includes an optional generic `Storage` value, which can be used to compare old and new values
 13 | /// across state changes to prevent redundant view updates.
 14 | public struct SwiftUIView<Content: ViewType, Storage>: MeasuringViewRepresentable,
    |               |- warning: conformance of 'Never' to 'View' is only available in macOS 10.15 or newer; this is an error in the Swift 6 language mode
    |               |- note: add @available attribute to enclosing generic struct
    |               `- note: in associated type 'Self.Body' (inferred as 'Never')
 15 |   UIViewConfiguringSwiftUIView
 16 | {
/Users/admin/builder/spi-builder-workspace/Sources/EpoxyCore/SwiftUI/SwiftUIView.swift:122:44: error: 'animation' is only available in macOS 10.15 or newer
 99 |   /// The configuration context that's available to configure the `Content` view whenever the
100 |   /// `updateUIView()` method is invoked via a configuration closure.
101 |   public struct ConfigurationContext: ViewProviding {
    |                 `- note: add @available attribute to enclosing struct
102 |     /// The previous value for the `Storage` of this `SwiftUIView`, which can be used to store
103 |     /// values across state changes to prevent redundant view updates.
    :
119 |
120 |     /// A convenience accessor indicating whether this content update should be animated.
121 |     public var animated: Bool {
    |                `- note: add @available attribute to enclosing property
122 |       viewRepresentableContext.transaction.animation != nil
    |                                            |- error: 'animation' is only available in macOS 10.15 or newer
    |                                            `- note: add 'if #available' version check
123 |     }
124 |   }
/Users/admin/builder/spi-builder-workspace/Sources/EpoxyCore/SwiftUI/UIViewConfiguringSwiftUIView.swift:10:47: error: 'View' is only available in macOS 10.15 or newer
 8 | /// A protocol describing a SwiftUI `View` that can configure its `UIView` content via an array of
 9 | /// `configuration` closures.
10 | public protocol UIViewConfiguringSwiftUIView: View {
   |                 |                             `- error: 'View' is only available in macOS 10.15 or newer
   |                 `- note: add @available attribute to enclosing protocol
11 |   /// The context available to this configuration, which provides the `UIView` instance at a minimum
12 |   /// but can include additional context as needed.
[48/54] Compiling EpoxyCore UIView+SwiftUIView.swift
/Users/admin/builder/spi-builder-workspace/Sources/EpoxyCore/SwiftUI/SwiftUIView.swift:14:15: warning: conformance of 'Never' to 'View' is only available in macOS 10.15 or newer; this is an error in the Swift 6 language mode
 12 | /// Includes an optional generic `Storage` value, which can be used to compare old and new values
 13 | /// across state changes to prevent redundant view updates.
 14 | public struct SwiftUIView<Content: ViewType, Storage>: MeasuringViewRepresentable,
    |               |- warning: conformance of 'Never' to 'View' is only available in macOS 10.15 or newer; this is an error in the Swift 6 language mode
    |               |- note: add @available attribute to enclosing generic struct
    |               `- note: in associated type 'Self.Body' (inferred as 'Never')
 15 |   UIViewConfiguringSwiftUIView
 16 | {
/Users/admin/builder/spi-builder-workspace/Sources/EpoxyCore/SwiftUI/SwiftUIView.swift:122:44: error: 'animation' is only available in macOS 10.15 or newer
 99 |   /// The configuration context that's available to configure the `Content` view whenever the
100 |   /// `updateUIView()` method is invoked via a configuration closure.
101 |   public struct ConfigurationContext: ViewProviding {
    |                 `- note: add @available attribute to enclosing struct
102 |     /// The previous value for the `Storage` of this `SwiftUIView`, which can be used to store
103 |     /// values across state changes to prevent redundant view updates.
    :
119 |
120 |     /// A convenience accessor indicating whether this content update should be animated.
121 |     public var animated: Bool {
    |                `- note: add @available attribute to enclosing property
122 |       viewRepresentableContext.transaction.animation != nil
    |                                            |- error: 'animation' is only available in macOS 10.15 or newer
    |                                            `- note: add 'if #available' version check
123 |     }
124 |   }
/Users/admin/builder/spi-builder-workspace/Sources/EpoxyCore/SwiftUI/UIViewConfiguringSwiftUIView.swift:10:47: error: 'View' is only available in macOS 10.15 or newer
 8 | /// A protocol describing a SwiftUI `View` that can configure its `UIView` content via an array of
 9 | /// `configuration` closures.
10 | public protocol UIViewConfiguringSwiftUIView: View {
   |                 |                             `- error: 'View' is only available in macOS 10.15 or newer
   |                 `- note: add @available attribute to enclosing protocol
11 |   /// The context available to this configuration, which provides the `UIView` instance at a minimum
12 |   /// but can include additional context as needed.
[49/54] Compiling EpoxyCore UIViewConfiguringSwiftUIView.swift
/Users/admin/builder/spi-builder-workspace/Sources/EpoxyCore/SwiftUI/SwiftUIView.swift:14:15: warning: conformance of 'Never' to 'View' is only available in macOS 10.15 or newer; this is an error in the Swift 6 language mode
 12 | /// Includes an optional generic `Storage` value, which can be used to compare old and new values
 13 | /// across state changes to prevent redundant view updates.
 14 | public struct SwiftUIView<Content: ViewType, Storage>: MeasuringViewRepresentable,
    |               |- warning: conformance of 'Never' to 'View' is only available in macOS 10.15 or newer; this is an error in the Swift 6 language mode
    |               |- note: add @available attribute to enclosing generic struct
    |               `- note: in associated type 'Self.Body' (inferred as 'Never')
 15 |   UIViewConfiguringSwiftUIView
 16 | {
/Users/admin/builder/spi-builder-workspace/Sources/EpoxyCore/SwiftUI/SwiftUIView.swift:122:44: error: 'animation' is only available in macOS 10.15 or newer
 99 |   /// The configuration context that's available to configure the `Content` view whenever the
100 |   /// `updateUIView()` method is invoked via a configuration closure.
101 |   public struct ConfigurationContext: ViewProviding {
    |                 `- note: add @available attribute to enclosing struct
102 |     /// The previous value for the `Storage` of this `SwiftUIView`, which can be used to store
103 |     /// values across state changes to prevent redundant view updates.
    :
119 |
120 |     /// A convenience accessor indicating whether this content update should be animated.
121 |     public var animated: Bool {
    |                `- note: add @available attribute to enclosing property
122 |       viewRepresentableContext.transaction.animation != nil
    |                                            |- error: 'animation' is only available in macOS 10.15 or newer
    |                                            `- note: add 'if #available' version check
123 |     }
124 |   }
/Users/admin/builder/spi-builder-workspace/Sources/EpoxyCore/SwiftUI/UIViewConfiguringSwiftUIView.swift:10:47: error: 'View' is only available in macOS 10.15 or newer
 8 | /// A protocol describing a SwiftUI `View` that can configure its `UIView` content via an array of
 9 | /// `configuration` closures.
10 | public protocol UIViewConfiguringSwiftUIView: View {
   |                 |                             `- error: 'View' is only available in macOS 10.15 or newer
   |                 `- note: add @available attribute to enclosing protocol
11 |   /// The context available to this configuration, which provides the `UIView` instance at a minimum
12 |   /// but can include additional context as needed.
[50/54] Compiling EpoxyCore BehaviorsConfigurableView.swift
/Users/admin/builder/spi-builder-workspace/Sources/EpoxyCore/SwiftUI/SwiftUIView.swift:14:15: warning: conformance of 'Never' to 'View' is only available in macOS 10.15 or newer; this is an error in the Swift 6 language mode
 12 | /// Includes an optional generic `Storage` value, which can be used to compare old and new values
 13 | /// across state changes to prevent redundant view updates.
 14 | public struct SwiftUIView<Content: ViewType, Storage>: MeasuringViewRepresentable,
    |               |- warning: conformance of 'Never' to 'View' is only available in macOS 10.15 or newer; this is an error in the Swift 6 language mode
    |               |- note: add @available attribute to enclosing generic struct
    |               `- note: in associated type 'Self.Body' (inferred as 'Never')
 15 |   UIViewConfiguringSwiftUIView
 16 | {
/Users/admin/builder/spi-builder-workspace/Sources/EpoxyCore/SwiftUI/SwiftUIView.swift:122:44: error: 'animation' is only available in macOS 10.15 or newer
 99 |   /// The configuration context that's available to configure the `Content` view whenever the
100 |   /// `updateUIView()` method is invoked via a configuration closure.
101 |   public struct ConfigurationContext: ViewProviding {
    |                 `- note: add @available attribute to enclosing struct
102 |     /// The previous value for the `Storage` of this `SwiftUIView`, which can be used to store
103 |     /// values across state changes to prevent redundant view updates.
    :
119 |
120 |     /// A convenience accessor indicating whether this content update should be animated.
121 |     public var animated: Bool {
    |                `- note: add @available attribute to enclosing property
122 |       viewRepresentableContext.transaction.animation != nil
    |                                            |- error: 'animation' is only available in macOS 10.15 or newer
    |                                            `- note: add 'if #available' version check
123 |     }
124 |   }
/Users/admin/builder/spi-builder-workspace/Sources/EpoxyCore/SwiftUI/UIViewConfiguringSwiftUIView.swift:10:47: error: 'View' is only available in macOS 10.15 or newer
 8 | /// A protocol describing a SwiftUI `View` that can configure its `UIView` content via an array of
 9 | /// `configuration` closures.
10 | public protocol UIViewConfiguringSwiftUIView: View {
   |                 |                             `- error: 'View' is only available in macOS 10.15 or newer
   |                 `- note: add @available attribute to enclosing protocol
11 |   /// The context available to this configuration, which provides the `UIView` instance at a minimum
12 |   /// but can include additional context as needed.
[51/54] Compiling EpoxyCore ContentConfigurableView.swift
/Users/admin/builder/spi-builder-workspace/Sources/EpoxyCore/Views/ViewType.swift:36:42: error: 'NSViewRepresentable' is only available in macOS 10.15 or newer
34 | /// The platform's SwiftUI view representable type.
35 | /// Either `UIViewRepresentable` on iOS/tvOS, or `NSViewRepresentable` on macOS.
36 | public typealias ViewRepresentableType = NSViewRepresentable
   |                                          `- error: 'NSViewRepresentable' is only available in macOS 10.15 or newer
37 |
38 | /// The platform's layout constraint priority type.
[52/54] Compiling EpoxyCore EpoxyableView.swift
/Users/admin/builder/spi-builder-workspace/Sources/EpoxyCore/Views/ViewType.swift:36:42: error: 'NSViewRepresentable' is only available in macOS 10.15 or newer
34 | /// The platform's SwiftUI view representable type.
35 | /// Either `UIViewRepresentable` on iOS/tvOS, or `NSViewRepresentable` on macOS.
36 | public typealias ViewRepresentableType = NSViewRepresentable
   |                                          `- error: 'NSViewRepresentable' is only available in macOS 10.15 or newer
37 |
38 | /// The platform's layout constraint priority type.
[53/54] Compiling EpoxyCore StyledView.swift
/Users/admin/builder/spi-builder-workspace/Sources/EpoxyCore/Views/ViewType.swift:36:42: error: 'NSViewRepresentable' is only available in macOS 10.15 or newer
34 | /// The platform's SwiftUI view representable type.
35 | /// Either `UIViewRepresentable` on iOS/tvOS, or `NSViewRepresentable` on macOS.
36 | public typealias ViewRepresentableType = NSViewRepresentable
   |                                          `- error: 'NSViewRepresentable' is only available in macOS 10.15 or newer
37 |
38 | /// The platform's layout constraint priority type.
[54/54] Compiling EpoxyCore ViewType.swift
/Users/admin/builder/spi-builder-workspace/Sources/EpoxyCore/Views/ViewType.swift:36:42: error: 'NSViewRepresentable' is only available in macOS 10.15 or newer
34 | /// The platform's SwiftUI view representable type.
35 | /// Either `UIViewRepresentable` on iOS/tvOS, or `NSViewRepresentable` on macOS.
36 | public typealias ViewRepresentableType = NSViewRepresentable
   |                                          `- error: 'NSViewRepresentable' is only available in macOS 10.15 or newer
37 |
38 | /// The platform's layout constraint priority type.
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BUILD FAILURE 6.0 macosSpm