LibXMTP – Build Information – Swift Package Index

Has it really been five years since Swift Package Index launched? Read our anniversary blog post!

Build Information

Failed to build LibXMTP, reference 4.2.5 (50184e), with Swift 6.1 for watchOS using Xcode 16.3 on 27 Jun 2025 05:47:45 UTC.

Build Command

env DEVELOPER_DIR=/Applications/Xcode-16.3.0.app xcrun xcodebuild -IDEClonedSourcePackagesDirPathOverride=$PWD/.dependencies -skipMacroValidation -skipPackagePluginValidation -derivedDataPath $PWD/.derivedData build -scheme LibXMTP -destination generic/platform=watchOS

Build Log

========================================
RunAll
========================================
Builder version: 4.64.0
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/xmtp/libxmtp-swift.git
Reference: 4.2.5
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/xmtp/libxmtp-swift
 * tag               4.2.5      -> FETCH_HEAD
HEAD is now at 50184ea Merge pull request #140 from xmtp/update-to-swift-bindings-1.2.5.dc3e8c8
Cloned https://github.com/xmtp/libxmtp-swift.git
Revision (git rev-parse @):
50184ea9a5f2a6e7113d9089fbb8de0297ea6d65
SUCCESS checkout https://github.com/xmtp/libxmtp-swift.git at 4.2.5
========================================
Build
========================================
Selected platform:         watchOS
Swift version:             6.1
Building package at path:  $PWD
https://github.com/xmtp/libxmtp-swift.git
https://github.com/xmtp/libxmtp-swift.git
{
  "dependencies" : [
  ],
  "manifest_display_name" : "LibXMTP",
  "name" : "LibXMTP",
  "path" : "/Users/admin/builder/spi-builder-workspace",
  "platforms" : [
    {
      "name" : "ios",
      "version" : "13.0"
    },
    {
      "name" : "macos",
      "version" : "11.0"
    }
  ],
  "products" : [
    {
      "name" : "LibXMTP",
      "targets" : [
        "LibXMTP",
        "LibXMTPSwiftFFI"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "LibXMTPTests",
      "module_type" : "SwiftTarget",
      "name" : "LibXMTPTests",
      "path" : "Tests/LibXMTPTests",
      "sources" : [
        "LibXMTPTest.swift"
      ],
      "target_dependencies" : [
        "LibXMTP"
      ],
      "type" : "test"
    },
    {
      "c99name" : "LibXMTPSwiftFFI",
      "module_type" : "BinaryTarget",
      "name" : "LibXMTPSwiftFFI",
      "path" : "remote/archive/LibXMTPSwiftFFI.zip",
      "product_memberships" : [
        "LibXMTP"
      ],
      "sources" : [
      ],
      "type" : "binary"
    },
    {
      "c99name" : "LibXMTP",
      "module_type" : "SwiftTarget",
      "name" : "LibXMTP",
      "path" : "Sources/LibXMTP",
      "product_memberships" : [
        "LibXMTP"
      ],
      "sources" : [
        "xmtpv3.swift"
      ],
      "target_dependencies" : [
        "LibXMTPSwiftFFI"
      ],
      "type" : "library"
    }
  ],
  "tools_version" : "5.7"
}
Command line invocation:
    /Applications/Xcode-16.3.0.app/Contents/Developer/usr/bin/xcodebuild -IDEClonedSourcePackagesDirPathOverride=/Users/admin/builder/spi-builder-workspace/.dependencies -resolvePackageDependencies
Resolve Package Graph
Resolve Package Graph
Resolve Package Graph
Resolved source packages:
  LibXMTP: /Users/admin/builder/spi-builder-workspace
resolved source packages: LibXMTP
{
  "dependencies" : [
  ],
  "manifest_display_name" : "LibXMTP",
  "name" : "LibXMTP",
  "path" : "/Users/admin/builder/spi-builder-workspace",
  "platforms" : [
    {
      "name" : "ios",
      "version" : "13.0"
    },
    {
      "name" : "macos",
      "version" : "11.0"
    }
  ],
  "products" : [
    {
      "name" : "LibXMTP",
      "targets" : [
        "LibXMTP",
        "LibXMTPSwiftFFI"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "LibXMTPTests",
      "module_type" : "SwiftTarget",
      "name" : "LibXMTPTests",
      "path" : "Tests/LibXMTPTests",
      "sources" : [
        "LibXMTPTest.swift"
      ],
      "target_dependencies" : [
        "LibXMTP"
      ],
      "type" : "test"
    },
    {
      "c99name" : "LibXMTPSwiftFFI",
      "module_type" : "BinaryTarget",
      "name" : "LibXMTPSwiftFFI",
      "path" : "remote/archive/LibXMTPSwiftFFI.zip",
      "product_memberships" : [
        "LibXMTP"
      ],
      "sources" : [
      ],
      "type" : "binary"
    },
    {
      "c99name" : "LibXMTP",
      "module_type" : "SwiftTarget",
      "name" : "LibXMTP",
      "path" : "Sources/LibXMTP",
      "product_memberships" : [
        "LibXMTP"
      ],
      "sources" : [
        "xmtpv3.swift"
      ],
      "target_dependencies" : [
        "LibXMTPSwiftFFI"
      ],
      "type" : "library"
    }
  ],
  "tools_version" : "5.7"
}
{
  "workspace" : {
    "name" : "spi-builder-workspace",
    "schemes" : [
      "LibXMTP"
    ]
  }
}
Running build ...
env DEVELOPER_DIR=/Applications/Xcode-16.3.0.app xcrun xcodebuild -IDEClonedSourcePackagesDirPathOverride=$PWD/.dependencies -skipMacroValidation -skipPackagePluginValidation -derivedDataPath $PWD/.derivedData build -scheme LibXMTP -destination generic/platform=watchOS OTHER_SWIFT_FLAGS=-stats-output-dir .stats -strict-concurrency=complete -enable-upcoming-feature StrictConcurrency -enable-upcoming-feature DisableOutwardActorInference -enable-upcoming-feature GlobalActorIsolatedTypesUsability -enable-upcoming-feature InferSendableFromCaptures
Command line invocation:
    /Applications/Xcode-16.3.0.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 LibXMTP -destination generic/platform=watchOS "OTHER_SWIFT_FLAGS=-stats-output-dir .stats -strict-concurrency=complete -enable-upcoming-feature StrictConcurrency -enable-upcoming-feature DisableOutwardActorInference -enable-upcoming-feature GlobalActorIsolatedTypesUsability -enable-upcoming-feature InferSendableFromCaptures"
Build settings from command line:
    OTHER_SWIFT_FLAGS = -stats-output-dir .stats -strict-concurrency=complete -enable-upcoming-feature StrictConcurrency -enable-upcoming-feature DisableOutwardActorInference -enable-upcoming-feature GlobalActorIsolatedTypesUsability -enable-upcoming-feature InferSendableFromCaptures
Resolve Package Graph
Resolved source packages:
  LibXMTP: /Users/admin/builder/spi-builder-workspace
ComputePackagePrebuildTargetDependencyGraph
Prepare packages
CreateBuildRequest
SendProjectDescription
CreateBuildOperation
ComputeTargetDependencyGraph
note: Building targets in dependency order
note: Target dependency graph (2 targets)
    Target 'LibXMTP' in project 'LibXMTP'
        ➜ Explicit dependency on target 'LibXMTP' in project 'LibXMTP'
    Target 'LibXMTP' in project 'LibXMTP' (no dependencies)
GatherProvisioningInputs
CreateBuildDescription
ExecuteExternalTool /Applications/Xcode-16.3.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang -v -E -dM -isysroot /Applications/Xcode-16.3.0.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS11.4.sdk -x c -c /dev/null
ExecuteExternalTool /Applications/Xcode-16.3.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/swiftc --version
ExecuteExternalTool /Applications/Xcode-16.3.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/ld -version_details
Build description signature: afcf2964f2fed085e1c0d42119669a17
Build description path: /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/XCBuildData/afcf2964f2fed085e1c0d42119669a17.xcbuilddata
/Users/admin/builder/spi-builder-workspace/.dependencies/artifacts/spi-builder-workspace/LibXMTPSwiftFFI/LibXMTPSwiftFFI.xcframework:1:1: error: While building for watchOS, no library for this platform was found in '/Users/admin/builder/spi-builder-workspace/.dependencies/artifacts/spi-builder-workspace/LibXMTPSwiftFFI/LibXMTPSwiftFFI.xcframework'. (in target 'LibXMTP' from project 'LibXMTP')
/Users/admin/builder/spi-builder-workspace/.dependencies/artifacts/spi-builder-workspace/LibXMTPSwiftFFI/LibXMTPSwiftFFI.xcframework:1:1: error: While building for watchOS, no library for this platform was found in '/Users/admin/builder/spi-builder-workspace/.dependencies/artifacts/spi-builder-workspace/LibXMTPSwiftFFI/LibXMTPSwiftFFI.xcframework'. (in target 'LibXMTP' from project 'LibXMTP')
/Users/admin/builder/spi-builder-workspace/.dependencies/artifacts/spi-builder-workspace/LibXMTPSwiftFFI/LibXMTPSwiftFFI.xcframework:1:1: error: While building for watchOS, no library for this platform was found in '/Users/admin/builder/spi-builder-workspace/.dependencies/artifacts/spi-builder-workspace/LibXMTPSwiftFFI/LibXMTPSwiftFFI.xcframework'. (in target 'LibXMTP' from project 'LibXMTP')
** BUILD FAILED **
The following build commands failed:
	Building workspace spi-builder-workspace with scheme LibXMTP
(1 failure)
Command line invocation:
    /Applications/Xcode-16.3.0.app/Contents/Developer/usr/bin/xcodebuild -IDEClonedSourcePackagesDirPathOverride=/Users/admin/builder/spi-builder-workspace/.dependencies -resolvePackageDependencies
Resolve Package Graph
Resolved source packages:
  LibXMTP: /Users/admin/builder/spi-builder-workspace
resolved source packages: LibXMTP
{
  "dependencies" : [
  ],
  "manifest_display_name" : "LibXMTP",
  "name" : "LibXMTP",
  "path" : "/Users/admin/builder/spi-builder-workspace",
  "platforms" : [
    {
      "name" : "ios",
      "version" : "13.0"
    },
    {
      "name" : "macos",
      "version" : "11.0"
    }
  ],
  "products" : [
    {
      "name" : "LibXMTP",
      "targets" : [
        "LibXMTP",
        "LibXMTPSwiftFFI"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "LibXMTPTests",
      "module_type" : "SwiftTarget",
      "name" : "LibXMTPTests",
      "path" : "Tests/LibXMTPTests",
      "sources" : [
        "LibXMTPTest.swift"
      ],
      "target_dependencies" : [
        "LibXMTP"
      ],
      "type" : "test"
    },
    {
      "c99name" : "LibXMTPSwiftFFI",
      "module_type" : "BinaryTarget",
      "name" : "LibXMTPSwiftFFI",
      "path" : "remote/archive/LibXMTPSwiftFFI.zip",
      "product_memberships" : [
        "LibXMTP"
      ],
      "sources" : [
      ],
      "type" : "binary"
    },
    {
      "c99name" : "LibXMTP",
      "module_type" : "SwiftTarget",
      "name" : "LibXMTP",
      "path" : "Sources/LibXMTP",
      "product_memberships" : [
        "LibXMTP"
      ],
      "sources" : [
        "xmtpv3.swift"
      ],
      "target_dependencies" : [
        "LibXMTPSwiftFFI"
      ],
      "type" : "library"
    }
  ],
  "tools_version" : "5.7"
}
{
  "workspace" : {
    "name" : "spi-builder-workspace",
    "schemes" : [
      "LibXMTP"
    ]
  }
}
Running build ...
env DEVELOPER_DIR=/Applications/Xcode-16.3.0.app xcrun xcodebuild -IDEClonedSourcePackagesDirPathOverride=$PWD/.dependencies -skipMacroValidation -skipPackagePluginValidation -derivedDataPath $PWD/.derivedData build -scheme LibXMTP -destination generic/platform=watchOS
Command line invocation:
    /Applications/Xcode-16.3.0.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 LibXMTP -destination generic/platform=watchOS
Resolve Package Graph
Resolved source packages:
  LibXMTP: /Users/admin/builder/spi-builder-workspace
ComputePackagePrebuildTargetDependencyGraph
Prepare packages
CreateBuildRequest
SendProjectDescription
CreateBuildOperation
ComputeTargetDependencyGraph
note: Building targets in dependency order
note: Target dependency graph (2 targets)
    Target 'LibXMTP' in project 'LibXMTP'
        ➜ Explicit dependency on target 'LibXMTP' in project 'LibXMTP'
    Target 'LibXMTP' in project 'LibXMTP' (no dependencies)
GatherProvisioningInputs
CreateBuildDescription
ExecuteExternalTool /Applications/Xcode-16.3.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang -v -E -dM -isysroot /Applications/Xcode-16.3.0.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS11.4.sdk -x c -c /dev/null
ExecuteExternalTool /Applications/Xcode-16.3.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/swiftc --version
ExecuteExternalTool /Applications/Xcode-16.3.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/ld -version_details
Build description signature: 8481f36172552537dda9f2c979fc7123
Build description path: /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/XCBuildData/8481f36172552537dda9f2c979fc7123.xcbuilddata
/Users/admin/builder/spi-builder-workspace/.dependencies/artifacts/spi-builder-workspace/LibXMTPSwiftFFI/LibXMTPSwiftFFI.xcframework:1:1: error: While building for watchOS, no library for this platform was found in '/Users/admin/builder/spi-builder-workspace/.dependencies/artifacts/spi-builder-workspace/LibXMTPSwiftFFI/LibXMTPSwiftFFI.xcframework'. (in target 'LibXMTP' from project 'LibXMTP')
/Users/admin/builder/spi-builder-workspace/.dependencies/artifacts/spi-builder-workspace/LibXMTPSwiftFFI/LibXMTPSwiftFFI.xcframework:1:1: error: While building for watchOS, no library for this platform was found in '/Users/admin/builder/spi-builder-workspace/.dependencies/artifacts/spi-builder-workspace/LibXMTPSwiftFFI/LibXMTPSwiftFFI.xcframework'. (in target 'LibXMTP' from project 'LibXMTP')
/Users/admin/builder/spi-builder-workspace/.dependencies/artifacts/spi-builder-workspace/LibXMTPSwiftFFI/LibXMTPSwiftFFI.xcframework:1:1: error: While building for watchOS, no library for this platform was found in '/Users/admin/builder/spi-builder-workspace/.dependencies/artifacts/spi-builder-workspace/LibXMTPSwiftFFI/LibXMTPSwiftFFI.xcframework'. (in target 'LibXMTP' from project 'LibXMTP')
** BUILD FAILED **
The following build commands failed:
	Building workspace spi-builder-workspace with scheme LibXMTP
(1 failure)
BUILD FAILURE 6.1 watchOS