The Swift Package Index logo.Swift Package Index

Track the adoption of Swift 6 strict concurrency checks for data race safety. How many packages are Ready for Swift 6?

Build Information

Failed to build LottieUI, reference v1.3.3 (dd5b2f), with Swift 6.1 for watchOS using Xcode 16.3 on 27 Apr 2025 11:03:18 UTC.

Build Command

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

Build Log

========================================
RunAll
========================================
Builder version: 4.61.0
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/tfmart/LottieUI.git
Reference: v1.3.3
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/tfmart/LottieUI
 * tag               v1.3.3     -> FETCH_HEAD
HEAD is now at dd5b2f1 Added code example to warning
Cloned https://github.com/tfmart/LottieUI.git
Revision (git rev-parse @):
dd5b2f16213f89ab996a55fc2f51b56236da4bbe
SUCCESS checkout https://github.com/tfmart/LottieUI.git at v1.3.3
========================================
Build
========================================
Selected platform:         watchOS
Swift version:             6.1
Building package at path:  $PWD
https://github.com/tfmart/LottieUI.git
https://github.com/tfmart/LottieUI.git
{
  "dependencies" : [
    {
      "identity" : "lottie-spm",
      "requirement" : {
        "range" : [
          {
            "lower_bound" : "4.1.2",
            "upper_bound" : "5.0.0"
          }
        ]
      },
      "type" : "sourceControl",
      "url" : "https://github.com/airbnb/lottie-spm.git"
    }
  ],
  "manifest_display_name" : "LottieUI",
  "name" : "LottieUI",
  "path" : "/Users/admin/builder/spi-builder-workspace",
  "platforms" : [
    {
      "name" : "ios",
      "version" : "13.0"
    },
    {
      "name" : "macos",
      "version" : "10.15"
    }
  ],
  "products" : [
    {
      "name" : "LottieUI",
      "targets" : [
        "LottieUI"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "LottieUITests",
      "module_type" : "SwiftTarget",
      "name" : "LottieUITests",
      "path" : "Tests/LottieUITests",
      "sources" : [
        "LottieUITests.swift"
      ],
      "target_dependencies" : [
        "LottieUI"
      ],
      "type" : "test"
    },
    {
      "c99name" : "LottieUI",
      "module_type" : "SwiftTarget",
      "name" : "LottieUI",
      "path" : "Sources/LottieUI",
      "product_dependencies" : [
        "Lottie"
      ],
      "product_memberships" : [
        "LottieUI"
      ],
      "sources" : [
        "AsyncLottieView/AsyncLottiePhase.swift",
        "AsyncLottieView/AsyncLottieView.swift",
        "LottieConfiguration.swift",
        "LottieContentSource.swift",
        "LottieView/LottieView+iOS.swift",
        "LottieView/LottieView+macOS.swift",
        "LottieView/LottieView.swift",
        "iOS/AnimationProgressObserver.swift",
        "iOS/WrappedAnimationView+iOS.swift",
        "macOS/AnimationProgressObserver+macOS.swift",
        "macOS/WrappedAnimationNSView.swift"
      ],
      "type" : "library"
    }
  ],
  "tools_version" : "5.5"
}
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
Fetching from https://github.com/airbnb/lottie-spm.git
Creating working copy of package ‘lottie-spm’
Checking out 4.5.1 of package ‘lottie-spm’
Resolve Package Graph
Resolved source packages:
  LottieUI: /Users/admin/builder/spi-builder-workspace
  Lottie: https://github.com/airbnb/lottie-spm.git @ 4.5.1
resolved source packages: LottieUI, Lottie
{
  "dependencies" : [
    {
      "identity" : "lottie-spm",
      "requirement" : {
        "range" : [
          {
            "lower_bound" : "4.1.2",
            "upper_bound" : "5.0.0"
          }
        ]
      },
      "type" : "sourceControl",
      "url" : "https://github.com/airbnb/lottie-spm.git"
    }
  ],
  "manifest_display_name" : "LottieUI",
  "name" : "LottieUI",
  "path" : "/Users/admin/builder/spi-builder-workspace",
  "platforms" : [
    {
      "name" : "ios",
      "version" : "13.0"
    },
    {
      "name" : "macos",
      "version" : "10.15"
    }
  ],
  "products" : [
    {
      "name" : "LottieUI",
      "targets" : [
        "LottieUI"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "LottieUITests",
      "module_type" : "SwiftTarget",
      "name" : "LottieUITests",
      "path" : "Tests/LottieUITests",
      "sources" : [
        "LottieUITests.swift"
      ],
      "target_dependencies" : [
        "LottieUI"
      ],
      "type" : "test"
    },
    {
      "c99name" : "LottieUI",
      "module_type" : "SwiftTarget",
      "name" : "LottieUI",
      "path" : "Sources/LottieUI",
      "product_dependencies" : [
        "Lottie"
      ],
      "product_memberships" : [
        "LottieUI"
      ],
      "sources" : [
        "AsyncLottieView/AsyncLottiePhase.swift",
        "AsyncLottieView/AsyncLottieView.swift",
        "LottieConfiguration.swift",
        "LottieContentSource.swift",
        "LottieView/LottieView+iOS.swift",
        "LottieView/LottieView+macOS.swift",
        "LottieView/LottieView.swift",
        "iOS/AnimationProgressObserver.swift",
        "iOS/WrappedAnimationView+iOS.swift",
        "macOS/AnimationProgressObserver+macOS.swift",
        "macOS/WrappedAnimationNSView.swift"
      ],
      "type" : "library"
    }
  ],
  "tools_version" : "5.5"
}
{
  "workspace" : {
    "name" : "spi-builder-workspace",
    "schemes" : [
      "LottieUI"
    ]
  }
}
Running build ...
env DEVELOPER_DIR=/Applications/Xcode-16.3.0.app xcrun xcodebuild -IDEClonedSourcePackagesDirPathOverride=$PWD/.dependencies -skipMacroValidation -skipPackagePluginValidation -derivedDataPath $PWD/.derivedData build -scheme LottieUI -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 LottieUI -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
Resolve Package Graph
Resolved source packages:
  Lottie: https://github.com/airbnb/lottie-spm.git @ 4.5.1
  LottieUI: /Users/admin/builder/spi-builder-workspace
ComputePackagePrebuildTargetDependencyGraph
Prepare packages
CreateBuildRequest
SendProjectDescription
CreateBuildOperation
ComputeTargetDependencyGraph
note: Building targets in dependency order
note: Target dependency graph (4 targets)
    Target 'LottieUI' in project 'LottieUI'
        ➜ Explicit dependency on target 'LottieUI' in project 'LottieUI'
        ➜ Explicit dependency on target 'Lottie' in project 'Lottie'
    Target 'LottieUI' in project 'LottieUI'
        ➜ Explicit dependency on target 'Lottie' in project 'Lottie'
    Target 'Lottie' in project 'Lottie'
        ➜ Explicit dependency on target '_LottieStub' in project 'Lottie'
    Target '_LottieStub' in project 'Lottie' (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: 065eedbd8dd5624148a3b19c4717a09d
Build description path: /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/XCBuildData/065eedbd8dd5624148a3b19c4717a09d.xcbuilddata
/Users/admin/builder/spi-builder-workspace/.dependencies/artifacts/lottie-spm/Lottie/Lottie.xcframework:1:1: error: While building for watchOS, no library for this platform was found in '/Users/admin/builder/spi-builder-workspace/.dependencies/artifacts/lottie-spm/Lottie/Lottie.xcframework'. (in target 'Lottie' from project 'Lottie')
/Users/admin/builder/spi-builder-workspace/.dependencies/artifacts/lottie-spm/Lottie/Lottie.xcframework:1:1: error: While building for watchOS, no library for this platform was found in '/Users/admin/builder/spi-builder-workspace/.dependencies/artifacts/lottie-spm/Lottie/Lottie.xcframework'. (in target 'LottieUI' from project 'LottieUI')
/Users/admin/builder/spi-builder-workspace/.dependencies/artifacts/lottie-spm/Lottie/Lottie.xcframework:1:1: error: While building for watchOS, no library for this platform was found in '/Users/admin/builder/spi-builder-workspace/.dependencies/artifacts/lottie-spm/Lottie/Lottie.xcframework'. (in target 'LottieUI' from project 'LottieUI')
/Users/admin/builder/spi-builder-workspace/.dependencies/artifacts/lottie-spm/Lottie/Lottie.xcframework:1:1: error: While building for watchOS, no library for this platform was found in '/Users/admin/builder/spi-builder-workspace/.dependencies/artifacts/lottie-spm/Lottie/Lottie.xcframework'. (in target 'LottieUI' from project 'LottieUI')
** BUILD FAILED **
The following build commands failed:
	Building workspace spi-builder-workspace with scheme LottieUI
(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:
  Lottie: https://github.com/airbnb/lottie-spm.git @ 4.5.1
  LottieUI: /Users/admin/builder/spi-builder-workspace
resolved source packages: Lottie, LottieUI
{
  "dependencies" : [
    {
      "identity" : "lottie-spm",
      "requirement" : {
        "range" : [
          {
            "lower_bound" : "4.1.2",
            "upper_bound" : "5.0.0"
          }
        ]
      },
      "type" : "sourceControl",
      "url" : "https://github.com/airbnb/lottie-spm.git"
    }
  ],
  "manifest_display_name" : "LottieUI",
  "name" : "LottieUI",
  "path" : "/Users/admin/builder/spi-builder-workspace",
  "platforms" : [
    {
      "name" : "ios",
      "version" : "13.0"
    },
    {
      "name" : "macos",
      "version" : "10.15"
    }
  ],
  "products" : [
    {
      "name" : "LottieUI",
      "targets" : [
        "LottieUI"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "LottieUITests",
      "module_type" : "SwiftTarget",
      "name" : "LottieUITests",
      "path" : "Tests/LottieUITests",
      "sources" : [
        "LottieUITests.swift"
      ],
      "target_dependencies" : [
        "LottieUI"
      ],
      "type" : "test"
    },
    {
      "c99name" : "LottieUI",
      "module_type" : "SwiftTarget",
      "name" : "LottieUI",
      "path" : "Sources/LottieUI",
      "product_dependencies" : [
        "Lottie"
      ],
      "product_memberships" : [
        "LottieUI"
      ],
      "sources" : [
        "AsyncLottieView/AsyncLottiePhase.swift",
        "AsyncLottieView/AsyncLottieView.swift",
        "LottieConfiguration.swift",
        "LottieContentSource.swift",
        "LottieView/LottieView+iOS.swift",
        "LottieView/LottieView+macOS.swift",
        "LottieView/LottieView.swift",
        "iOS/AnimationProgressObserver.swift",
        "iOS/WrappedAnimationView+iOS.swift",
        "macOS/AnimationProgressObserver+macOS.swift",
        "macOS/WrappedAnimationNSView.swift"
      ],
      "type" : "library"
    }
  ],
  "tools_version" : "5.5"
}
{
  "workspace" : {
    "name" : "spi-builder-workspace",
    "schemes" : [
      "LottieUI"
    ]
  }
}
Running build ...
env DEVELOPER_DIR=/Applications/Xcode-16.3.0.app xcrun xcodebuild -IDEClonedSourcePackagesDirPathOverride=$PWD/.dependencies -skipMacroValidation -skipPackagePluginValidation -derivedDataPath $PWD/.derivedData build -scheme LottieUI -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 LottieUI -destination generic/platform=watchOS
Resolve Package Graph
Resolved source packages:
  Lottie: https://github.com/airbnb/lottie-spm.git @ 4.5.1
  LottieUI: /Users/admin/builder/spi-builder-workspace
ComputePackagePrebuildTargetDependencyGraph
Prepare packages
CreateBuildRequest
SendProjectDescription
CreateBuildOperation
ComputeTargetDependencyGraph
note: Building targets in dependency order
note: Target dependency graph (4 targets)
    Target 'LottieUI' in project 'LottieUI'
        ➜ Explicit dependency on target 'LottieUI' in project 'LottieUI'
        ➜ Explicit dependency on target 'Lottie' in project 'Lottie'
    Target 'LottieUI' in project 'LottieUI'
        ➜ Explicit dependency on target 'Lottie' in project 'Lottie'
    Target 'Lottie' in project 'Lottie'
        ➜ Explicit dependency on target '_LottieStub' in project 'Lottie'
    Target '_LottieStub' in project 'Lottie' (no dependencies)
GatherProvisioningInputs
CreateBuildDescription
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/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/ld -version_details
Build description signature: 57e587dac914254e60011c3fc9b721bb
Build description path: /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/XCBuildData/57e587dac914254e60011c3fc9b721bb.xcbuilddata
/Users/admin/builder/spi-builder-workspace/.dependencies/artifacts/lottie-spm/Lottie/Lottie.xcframework:1:1: error: While building for watchOS, no library for this platform was found in '/Users/admin/builder/spi-builder-workspace/.dependencies/artifacts/lottie-spm/Lottie/Lottie.xcframework'. (in target 'LottieUI' from project 'LottieUI')
/Users/admin/builder/spi-builder-workspace/.dependencies/artifacts/lottie-spm/Lottie/Lottie.xcframework:1:1: error: While building for watchOS, no library for this platform was found in '/Users/admin/builder/spi-builder-workspace/.dependencies/artifacts/lottie-spm/Lottie/Lottie.xcframework'. (in target 'LottieUI' from project 'LottieUI')
/Users/admin/builder/spi-builder-workspace/.dependencies/artifacts/lottie-spm/Lottie/Lottie.xcframework:1:1: error: While building for watchOS, no library for this platform was found in '/Users/admin/builder/spi-builder-workspace/.dependencies/artifacts/lottie-spm/Lottie/Lottie.xcframework'. (in target 'Lottie' from project 'Lottie')
/Users/admin/builder/spi-builder-workspace/.dependencies/artifacts/lottie-spm/Lottie/Lottie.xcframework:1:1: error: While building for watchOS, no library for this platform was found in '/Users/admin/builder/spi-builder-workspace/.dependencies/artifacts/lottie-spm/Lottie/Lottie.xcframework'. (in target 'LottieUI' from project 'LottieUI')
** BUILD FAILED **
The following build commands failed:
	Building workspace spi-builder-workspace with scheme LottieUI
(1 failure)
BUILD FAILURE 6.1 watchOS