Swift Package Index

Build Information

Failed to build OKLCHGradient, reference 1.0.9 (ede198), with Swift 6.3 for watchOS using Xcode 26.4 on 17 Apr 2026 16:05:44 UTC.

Build Command

env DEVELOPER_DIR=/Applications/Xcode-26.4.0.app xcrun xcodebuild -IDEClonedSourcePackagesDirPathOverride=$PWD/.dependencies -skipMacroValidation -skipPackagePluginValidation -derivedDataPath $PWD/.derivedData build -scheme OKLCHGradient -destination generic/platform=watchOS

Build Log

========================================
RunAll
========================================
Builder version: 4.70.0
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/fwrs/OKLCHGradient.git
Reference: 1.0.9
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/fwrs/OKLCHGradient
 * tag               1.0.9      -> FETCH_HEAD
HEAD is now at ede1989 Migrate to @available and lower the package-wide version requirement
Cloned https://github.com/fwrs/OKLCHGradient.git
Revision (git rev-parse @):
ede1989a8a5e11ece0ec8ad87168b3ab6fd3b234
SUCCESS checkout https://github.com/fwrs/OKLCHGradient.git at 1.0.9
========================================
Build
========================================
Selected platform:         watchOS
Swift version:             6.3
Building package at path:  $PWD
https://github.com/fwrs/OKLCHGradient.git
Command line invocation:
    /Applications/Xcode-26.4.0.app/Contents/Developer/usr/bin/xcodebuild -IDEClonedSourcePackagesDirPathOverride=/Users/admin/builder/spi-builder-workspace/.dependencies -resolvePackageDependencies
Resolve Package Graph
Resolve Package Graph
Resolved source packages:
  OKLCHGradient: /Users/admin/builder/spi-builder-workspace
resolved source packages: OKLCHGradient
2026-04-17 12:05:28.244 xcodebuild[529:3080] [MT] IDERunDestination: Supported platforms for the buildables in the current scheme is empty.
{
  "dependencies" : [
  ],
  "manifest_display_name" : "OKLCHGradient",
  "name" : "OKLCHGradient",
  "path" : "/Users/admin/builder/spi-builder-workspace",
  "platforms" : [
    {
      "name" : "ios",
      "version" : "15.0"
    },
    {
      "name" : "macos",
      "version" : "12.0"
    },
    {
      "name" : "tvos",
      "version" : "15.0"
    },
    {
      "name" : "visionos",
      "version" : "1.0"
    },
    {
      "name" : "watchos",
      "version" : "6.0"
    }
  ],
  "products" : [
    {
      "name" : "OKLCHGradient",
      "targets" : [
        "OKLCHGradient"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "OKLCHGradient",
      "module_type" : "SwiftTarget",
      "name" : "OKLCHGradient",
      "path" : "Sources/OKLCHGradient",
      "product_memberships" : [
        "OKLCHGradient"
      ],
      "resources" : [
        {
          "path" : "/Users/admin/builder/spi-builder-workspace/Sources/OKLCHGradient/OKLCHGradient.metal",
          "rule" : {
            "process" : {
            }
          }
        }
      ],
      "sources" : [
        "OKLCHAngularGradient.swift",
        "OKLCHEllipticalGradient.swift",
        "OKLCHLinearGradient.swift",
        "OKLCHRadialGradient.swift",
        "Utils.swift"
      ],
      "type" : "library"
    }
  ],
  "tools_version" : "5.9"
}
{
  "workspace" : {
    "name" : "spi-builder-workspace",
    "schemes" : [
      "OKLCHGradient"
    ]
  }
}
2026-04-17 12:05:35.989 xcodebuild[631:3837] [MT] IDERunDestination: Supported platforms for the buildables in the current scheme is empty.
Running build ...
env DEVELOPER_DIR=/Applications/Xcode-26.4.0.app xcrun xcodebuild -IDEClonedSourcePackagesDirPathOverride=$PWD/.dependencies -skipMacroValidation -skipPackagePluginValidation -derivedDataPath $PWD/.derivedData build -scheme OKLCHGradient -destination generic/platform=watchOS
Command line invocation:
    /Applications/Xcode-26.4.0.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 OKLCHGradient -destination generic/platform=watchOS
Resolve Package Graph
Resolved source packages:
  OKLCHGradient: /Users/admin/builder/spi-builder-workspace
ComputePackagePrebuildTargetDependencyGraph
Prepare packages
CreateBuildRequest
SendProjectDescription
CreateBuildOperation
ComputeTargetDependencyGraph
note: Building targets in dependency order
note: Target dependency graph (3 targets)
    Target 'OKLCHGradient' in project 'OKLCHGradient'
        ➜ Explicit dependency on target 'OKLCHGradient' in project 'OKLCHGradient'
        ➜ Explicit dependency on target 'OKLCHGradient_OKLCHGradient' in project 'OKLCHGradient'
    Target 'OKLCHGradient' in project 'OKLCHGradient'
        ➜ Explicit dependency on target 'OKLCHGradient_OKLCHGradient' in project 'OKLCHGradient'
    Target 'OKLCHGradient_OKLCHGradient' in project 'OKLCHGradient' (no dependencies)
GatherProvisioningInputs
CreateBuildDescription
ExecuteExternalTool /Applications/Xcode-26.4.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang -v -E -dM -isysroot /Applications/Xcode-26.4.0.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS26.4.sdk -x c -c /dev/null
ExecuteExternalTool /Applications/Xcode-26.4.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/swiftc --version
ExecuteExternalTool /Applications/Xcode-26.4.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/ld -version_details
Build description signature: d879356bc52cd535de6f8c87a8382de0
Build description path: /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/XCBuildData/d879356bc52cd535de6f8c87a8382de0.xcbuilddata
ClangStatCache /Applications/Xcode-26.4.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang-stat-cache /Applications/Xcode-26.4.0.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS26.4.sdk /Users/admin/builder/spi-builder-workspace/.derivedData/SDKStatCaches.noindex/watchos26.4-23T238-688ef53f1462e2c8f657fdc38a81448f9e51884a582f42380855760c9d4cc599.sdkstatcache
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode
    /Applications/Xcode-26.4.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang-stat-cache /Applications/Xcode-26.4.0.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS26.4.sdk -o /Users/admin/builder/spi-builder-workspace/.derivedData/SDKStatCaches.noindex/watchos26.4-23T238-688ef53f1462e2c8f657fdc38a81448f9e51884a582f42380855760c9d4cc599.sdkstatcache
CreateBuildDirectory /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode
    builtin-create-build-directory /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products
CreateBuildDirectory /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode
    builtin-create-build-directory /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex
CreateBuildDirectory /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftExplicitPrecompiledModules
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode
    builtin-create-build-directory /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftExplicitPrecompiledModules
CreateBuildDirectory /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/ExplicitPrecompiledModules
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode
    builtin-create-build-directory /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/ExplicitPrecompiledModules
CreateBuildDirectory /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/EagerLinkingTBDs/Debug-watchos
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode
    builtin-create-build-directory /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/EagerLinkingTBDs/Debug-watchos
CreateBuildDirectory /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug-watchos
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode
    builtin-create-build-directory /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug-watchos
CreateBuildDirectory /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug-watchos/PackageFrameworks
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode
    builtin-create-build-directory /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug-watchos/PackageFrameworks
MkDir /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug-watchos/OKLCHGradient_OKLCHGradient.bundle (in target 'OKLCHGradient_OKLCHGradient' from project 'OKLCHGradient')
    cd /Users/admin/builder/spi-builder-workspace
    /bin/mkdir -p /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug-watchos/OKLCHGradient_OKLCHGradient.bundle
WriteAuxiliaryFile /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/OKLCHGradient.build/Debug-watchos/OKLCHGradient_OKLCHGradient.build/OKLCHGradient_OKLCHGradient.DependencyMetadataFileList (in target 'OKLCHGradient_OKLCHGradient' from project 'OKLCHGradient')
    cd /Users/admin/builder/spi-builder-workspace
    write-file /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/OKLCHGradient.build/Debug-watchos/OKLCHGradient_OKLCHGradient.build/OKLCHGradient_OKLCHGradient.DependencyMetadataFileList
WriteAuxiliaryFile /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/OKLCHGradient.build/Debug-watchos/OKLCHGradient_OKLCHGradient.build/empty-OKLCHGradient_OKLCHGradient.plist (in target 'OKLCHGradient_OKLCHGradient' from project 'OKLCHGradient')
    cd /Users/admin/builder/spi-builder-workspace
    write-file /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/OKLCHGradient.build/Debug-watchos/OKLCHGradient_OKLCHGradient.build/empty-OKLCHGradient_OKLCHGradient.plist
WriteAuxiliaryFile /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/OKLCHGradient.build/Debug-watchos/OKLCHGradient_OKLCHGradient.build/OKLCHGradient_OKLCHGradient.DependencyStaticMetadataFileList (in target 'OKLCHGradient_OKLCHGradient' from project 'OKLCHGradient')
    cd /Users/admin/builder/spi-builder-workspace
    write-file /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/OKLCHGradient.build/Debug-watchos/OKLCHGradient_OKLCHGradient.build/OKLCHGradient_OKLCHGradient.DependencyStaticMetadataFileList
WriteAuxiliaryFile /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/OKLCHGradient.build/Debug-watchos/OKLCHGradient.build/Objects-normal/armv7k/OKLCHGradient_const_extract_protocols.json (in target 'OKLCHGradient' from project 'OKLCHGradient')
    cd /Users/admin/builder/spi-builder-workspace
    write-file /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/OKLCHGradient.build/Debug-watchos/OKLCHGradient.build/Objects-normal/armv7k/OKLCHGradient_const_extract_protocols.json
WriteAuxiliaryFile /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/OKLCHGradient.build/Debug-watchos/OKLCHGradient.build/Objects-normal/armv7k/OKLCHGradient.LinkFileList (in target 'OKLCHGradient' from project 'OKLCHGradient')
    cd /Users/admin/builder/spi-builder-workspace
    write-file /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/OKLCHGradient.build/Debug-watchos/OKLCHGradient.build/Objects-normal/armv7k/OKLCHGradient.LinkFileList
WriteAuxiliaryFile /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/OKLCHGradient.build/Debug-watchos/OKLCHGradient.build/Objects-normal/armv7k/OKLCHGradient-OutputFileMap.json (in target 'OKLCHGradient' from project 'OKLCHGradient')
    cd /Users/admin/builder/spi-builder-workspace
    write-file /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/OKLCHGradient.build/Debug-watchos/OKLCHGradient.build/Objects-normal/armv7k/OKLCHGradient-OutputFileMap.json
WriteAuxiliaryFile /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/OKLCHGradient.build/Debug-watchos/OKLCHGradient.build/Objects-normal/armv7k/OKLCHGradient.SwiftFileList (in target 'OKLCHGradient' from project 'OKLCHGradient')
    cd /Users/admin/builder/spi-builder-workspace
    write-file /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/OKLCHGradient.build/Debug-watchos/OKLCHGradient.build/Objects-normal/armv7k/OKLCHGradient.SwiftFileList
WriteAuxiliaryFile /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/OKLCHGradient.build/Debug-watchos/OKLCHGradient.build/Objects-normal/armv7k/OKLCHGradient.SwiftConstValuesFileList (in target 'OKLCHGradient' from project 'OKLCHGradient')
    cd /Users/admin/builder/spi-builder-workspace
    write-file /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/OKLCHGradient.build/Debug-watchos/OKLCHGradient.build/Objects-normal/armv7k/OKLCHGradient.SwiftConstValuesFileList
WriteAuxiliaryFile /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/OKLCHGradient.build/Debug-watchos/OKLCHGradient.build/Objects-normal/arm64_32/OKLCHGradient.SwiftFileList (in target 'OKLCHGradient' from project 'OKLCHGradient')
    cd /Users/admin/builder/spi-builder-workspace
    write-file /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/OKLCHGradient.build/Debug-watchos/OKLCHGradient.build/Objects-normal/arm64_32/OKLCHGradient.SwiftFileList
WriteAuxiliaryFile /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/OKLCHGradient.build/Debug-watchos/OKLCHGradient.build/Objects-normal/arm64_32/OKLCHGradient.LinkFileList (in target 'OKLCHGradient' from project 'OKLCHGradient')
    cd /Users/admin/builder/spi-builder-workspace
    write-file /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/OKLCHGradient.build/Debug-watchos/OKLCHGradient.build/Objects-normal/arm64_32/OKLCHGradient.LinkFileList
WriteAuxiliaryFile /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/OKLCHGradient.build/Debug-watchos/OKLCHGradient.build/Objects-normal/arm64_32/OKLCHGradient_const_extract_protocols.json (in target 'OKLCHGradient' from project 'OKLCHGradient')
    cd /Users/admin/builder/spi-builder-workspace
    write-file /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/OKLCHGradient.build/Debug-watchos/OKLCHGradient.build/Objects-normal/arm64_32/OKLCHGradient_const_extract_protocols.json
WriteAuxiliaryFile /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/OKLCHGradient.build/Debug-watchos/OKLCHGradient.build/Objects-normal/arm64_32/OKLCHGradient-OutputFileMap.json (in target 'OKLCHGradient' from project 'OKLCHGradient')
    cd /Users/admin/builder/spi-builder-workspace
    write-file /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/OKLCHGradient.build/Debug-watchos/OKLCHGradient.build/Objects-normal/arm64_32/OKLCHGradient-OutputFileMap.json
WriteAuxiliaryFile /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/OKLCHGradient.build/Debug-watchos/OKLCHGradient.build/Objects-normal/arm64_32/OKLCHGradient.SwiftConstValuesFileList (in target 'OKLCHGradient' from project 'OKLCHGradient')
    cd /Users/admin/builder/spi-builder-workspace
    write-file /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/OKLCHGradient.build/Debug-watchos/OKLCHGradient.build/Objects-normal/arm64_32/OKLCHGradient.SwiftConstValuesFileList
WriteAuxiliaryFile /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/OKLCHGradient.build/Debug-watchos/OKLCHGradient.build/Objects-normal/arm64/OKLCHGradient.SwiftFileList (in target 'OKLCHGradient' from project 'OKLCHGradient')
    cd /Users/admin/builder/spi-builder-workspace
    write-file /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/OKLCHGradient.build/Debug-watchos/OKLCHGradient.build/Objects-normal/arm64/OKLCHGradient.SwiftFileList
WriteAuxiliaryFile /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/OKLCHGradient.build/Debug-watchos/OKLCHGradient.build/Objects-normal/arm64/OKLCHGradient.SwiftConstValuesFileList (in target 'OKLCHGradient' from project 'OKLCHGradient')
    cd /Users/admin/builder/spi-builder-workspace
    write-file /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/OKLCHGradient.build/Debug-watchos/OKLCHGradient.build/Objects-normal/arm64/OKLCHGradient.SwiftConstValuesFileList
WriteAuxiliaryFile /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/OKLCHGradient.build/Debug-watchos/OKLCHGradient.build/Objects-normal/arm64/OKLCHGradient.LinkFileList (in target 'OKLCHGradient' from project 'OKLCHGradient')
    cd /Users/admin/builder/spi-builder-workspace
    write-file /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/OKLCHGradient.build/Debug-watchos/OKLCHGradient.build/Objects-normal/arm64/OKLCHGradient.LinkFileList
WriteAuxiliaryFile /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/OKLCHGradient.build/Debug-watchos/OKLCHGradient.build/Objects-normal/arm64/OKLCHGradient_const_extract_protocols.json (in target 'OKLCHGradient' from project 'OKLCHGradient')
    cd /Users/admin/builder/spi-builder-workspace
    write-file /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/OKLCHGradient.build/Debug-watchos/OKLCHGradient.build/Objects-normal/arm64/OKLCHGradient_const_extract_protocols.json
WriteAuxiliaryFile /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/OKLCHGradient.build/Debug-watchos/OKLCHGradient.build/Objects-normal/arm64/OKLCHGradient-OutputFileMap.json (in target 'OKLCHGradient' from project 'OKLCHGradient')
    cd /Users/admin/builder/spi-builder-workspace
    write-file /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/OKLCHGradient.build/Debug-watchos/OKLCHGradient.build/Objects-normal/arm64/OKLCHGradient-OutputFileMap.json
WriteAuxiliaryFile /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/OKLCHGradient.build/Debug-watchos/OKLCHGradient.build/OKLCHGradient.modulemap (in target 'OKLCHGradient' from project 'OKLCHGradient')
    cd /Users/admin/builder/spi-builder-workspace
    write-file /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/OKLCHGradient.build/Debug-watchos/OKLCHGradient.build/OKLCHGradient.modulemap
WriteAuxiliaryFile /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/OKLCHGradient.build/Debug-watchos/OKLCHGradient.build/OKLCHGradient.DependencyStaticMetadataFileList (in target 'OKLCHGradient' from project 'OKLCHGradient')
    cd /Users/admin/builder/spi-builder-workspace
    write-file /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/OKLCHGradient.build/Debug-watchos/OKLCHGradient.build/OKLCHGradient.DependencyStaticMetadataFileList
WriteAuxiliaryFile /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/OKLCHGradient.build/Debug-watchos/OKLCHGradient.build/OKLCHGradient.DependencyMetadataFileList (in target 'OKLCHGradient' from project 'OKLCHGradient')
    cd /Users/admin/builder/spi-builder-workspace
    write-file /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/OKLCHGradient.build/Debug-watchos/OKLCHGradient.build/OKLCHGradient.DependencyMetadataFileList
WriteAuxiliaryFile /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/OKLCHGradient.build/Debug-watchos/OKLCHGradient.build/DerivedSources/resource_bundle_accessor.swift (in target 'OKLCHGradient' from project 'OKLCHGradient')
    cd /Users/admin/builder/spi-builder-workspace
    write-file /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/OKLCHGradient.build/Debug-watchos/OKLCHGradient.build/DerivedSources/resource_bundle_accessor.swift
Copy /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/GeneratedModuleMaps-watchos/OKLCHGradient.modulemap /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/OKLCHGradient.build/Debug-watchos/OKLCHGradient.build/OKLCHGradient.modulemap (in target 'OKLCHGradient' from project 'OKLCHGradient')
    cd /Users/admin/builder/spi-builder-workspace
    builtin-copy -exclude .DS_Store -exclude CVS -exclude .svn -exclude .git -exclude .hg -resolve-src-symlinks /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/OKLCHGradient.build/Debug-watchos/OKLCHGradient.build/OKLCHGradient.modulemap /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/GeneratedModuleMaps-watchos
ProcessInfoPlistFile /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug-watchos/OKLCHGradient_OKLCHGradient.bundle/Info.plist /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/OKLCHGradient.build/Debug-watchos/OKLCHGradient_OKLCHGradient.build/empty-OKLCHGradient_OKLCHGradient.plist (in target 'OKLCHGradient_OKLCHGradient' from project 'OKLCHGradient')
    cd /Users/admin/builder/spi-builder-workspace
    builtin-infoPlistUtility /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/OKLCHGradient.build/Debug-watchos/OKLCHGradient_OKLCHGradient.build/empty-OKLCHGradient_OKLCHGradient.plist -producttype com.apple.product-type.bundle -expandbuildsettings -format binary -platform watchos -o /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug-watchos/OKLCHGradient_OKLCHGradient.bundle/Info.plist
CompileMetalFile /Users/admin/builder/spi-builder-workspace/Sources/OKLCHGradient/OKLCHGradient.metal (in target 'OKLCHGradient_OKLCHGradient' from project 'OKLCHGradient')
    cd /Users/admin/builder/spi-builder-workspace
    /var/run/com.apple.security.cryptexd/mnt/com.apple.MobileAsset.MetalToolchain-v17.5.188.0.lG3W2Z/Metal.xctoolchain/usr/bin/metal -c -target air64-apple-watchos6.0 -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug-watchos/include -F/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug-watchos -isysroot /Applications/Xcode-26.4.0.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS26.4.sdk -fmetal-math-mode\=fast -fmetal-math-fp32-functions\=fast -serialize-diagnostics /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/OKLCHGradient.build/Debug-watchos/OKLCHGradient_OKLCHGradient.build/Metal/OKLCHGradient.dia -o /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/OKLCHGradient.build/Debug-watchos/OKLCHGradient_OKLCHGradient.build/Metal/OKLCHGradient.air -MMD -MT dependencies -MF /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/OKLCHGradient.build/Debug-watchos/OKLCHGradient_OKLCHGradient.build/Metal/OKLCHGradient.dat /Users/admin/builder/spi-builder-workspace/Sources/OKLCHGradient/OKLCHGradient.metal
/Users/admin/builder/spi-builder-workspace/Sources/OKLCHGradient/OKLCHGradient.metal:87:4: error: 'stitchable' attribute requires Metal language standard ios-metal2.3 or higher
[[ stitchable ]] half4 oklchLinearGradient(
   ^~~~~~~~~~
/Users/admin/builder/spi-builder-workspace/Sources/OKLCHGradient/OKLCHGradient.metal:129:4: error: 'stitchable' attribute requires Metal language standard ios-metal2.3 or higher
[[ stitchable ]] half4 oklchRadialGradient(
   ^~~~~~~~~~
/Users/admin/builder/spi-builder-workspace/Sources/OKLCHGradient/OKLCHGradient.metal:171:4: error: 'stitchable' attribute requires Metal language standard ios-metal2.3 or higher
[[ stitchable ]] half4 oklchAngularGradient(
   ^~~~~~~~~~
/Users/admin/builder/spi-builder-workspace/Sources/OKLCHGradient/OKLCHGradient.metal:219:4: error: 'stitchable' attribute requires Metal language standard ios-metal2.3 or higher
[[ stitchable ]] half4 oklchEllipticalGradient(
   ^~~~~~~~~~
4 errors generated.
SwiftDriver OKLCHGradient normal arm64 com.apple.xcode.tools.swift.compiler (in target 'OKLCHGradient' from project 'OKLCHGradient')
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode
    builtin-SwiftDriver -- /Applications/Xcode-26.4.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/swiftc -module-name OKLCHGradient -Onone @/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/OKLCHGradient.build/Debug-watchos/OKLCHGradient.build/Objects-normal/arm64/OKLCHGradient.SwiftFileList -DSWIFT_PACKAGE -DDEBUG -DSWIFT_MODULE_RESOURCE_BUNDLE_AVAILABLE -DXcode -plugin-path /Applications/Xcode-26.4.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/lib/swift/host/plugins/testing -enable-experimental-feature DebugDescriptionMacro -sdk /Applications/Xcode-26.4.0.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS26.4.sdk -target arm64-apple-watchos6.0 -g -module-cache-path /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex -Xfrontend -serialize-debugging-options -enable-testing -index-store-path /Users/admin/builder/spi-builder-workspace/.derivedData/Index.noindex/DataStore -Xcc -D_LIBCPP_HARDENING_MODE\=_LIBCPP_HARDENING_MODE_DEBUG -swift-version 5 -I /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug-watchos -Isystem /Applications/Xcode-26.4.0.app/Contents/Developer/Platforms/WatchOS.platform/Developer/usr/lib -F /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug-watchos -F /Applications/Xcode-26.4.0.app/Contents/Developer/Platforms/WatchOS.platform/Developer/Library/Frameworks -F /Applications/Xcode-26.4.0.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS26.4.sdk/Developer/Library/Frameworks -c -j10 -enable-batch-mode -incremental -Xcc -ivfsstatcache -Xcc /Users/admin/builder/spi-builder-workspace/.derivedData/SDKStatCaches.noindex/watchos26.4-23T238-688ef53f1462e2c8f657fdc38a81448f9e51884a582f42380855760c9d4cc599.sdkstatcache -output-file-map /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/OKLCHGradient.build/Debug-watchos/OKLCHGradient.build/Objects-normal/arm64/OKLCHGradient-OutputFileMap.json -use-frontend-parseable-output -save-temps -no-color-diagnostics -explicit-module-build -module-cache-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftExplicitPrecompiledModules -clang-scanner-module-cache-path /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex -sdk-module-cache-path /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex -serialize-diagnostics -emit-dependencies -emit-module -emit-module-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/OKLCHGradient.build/Debug-watchos/OKLCHGradient.build/Objects-normal/arm64/OKLCHGradient.swiftmodule -validate-clang-modules-once -clang-build-session-file /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex/Session.modulevalidation -package-name spi_builder_workspace -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/OKLCHGradient.build/Debug-watchos/OKLCHGradient.build/swift-overrides.hmap -emit-const-values -Xfrontend -const-gather-protocols-file -Xfrontend /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/OKLCHGradient.build/Debug-watchos/OKLCHGradient.build/Objects-normal/arm64/OKLCHGradient_const_extract_protocols.json -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug-watchos/include -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/OKLCHGradient.build/Debug-watchos/OKLCHGradient.build/DerivedSources-normal/arm64 -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/OKLCHGradient.build/Debug-watchos/OKLCHGradient.build/DerivedSources/arm64 -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/OKLCHGradient.build/Debug-watchos/OKLCHGradient.build/DerivedSources -Xcc -DSWIFT_PACKAGE -Xcc -DDEBUG\=1 -emit-objc-header -emit-objc-header-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/OKLCHGradient.build/Debug-watchos/OKLCHGradient.build/Objects-normal/arm64/OKLCHGradient-Swift.h -working-directory /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode -experimental-emit-module-separately -disable-cmo
SwiftDriver OKLCHGradient normal arm64_32 com.apple.xcode.tools.swift.compiler (in target 'OKLCHGradient' from project 'OKLCHGradient')
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode
    builtin-SwiftDriver -- /Applications/Xcode-26.4.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/swiftc -module-name OKLCHGradient -Onone @/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/OKLCHGradient.build/Debug-watchos/OKLCHGradient.build/Objects-normal/arm64_32/OKLCHGradient.SwiftFileList -DSWIFT_PACKAGE -DDEBUG -DSWIFT_MODULE_RESOURCE_BUNDLE_AVAILABLE -DXcode -plugin-path /Applications/Xcode-26.4.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/lib/swift/host/plugins/testing -enable-experimental-feature DebugDescriptionMacro -sdk /Applications/Xcode-26.4.0.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS26.4.sdk -target arm64_32-apple-watchos6.0 -g -module-cache-path /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex -Xfrontend -serialize-debugging-options -enable-testing -index-store-path /Users/admin/builder/spi-builder-workspace/.derivedData/Index.noindex/DataStore -Xcc -D_LIBCPP_HARDENING_MODE\=_LIBCPP_HARDENING_MODE_DEBUG -swift-version 5 -I /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug-watchos -Isystem /Applications/Xcode-26.4.0.app/Contents/Developer/Platforms/WatchOS.platform/Developer/usr/lib -F /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug-watchos -F /Applications/Xcode-26.4.0.app/Contents/Developer/Platforms/WatchOS.platform/Developer/Library/Frameworks -F /Applications/Xcode-26.4.0.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS26.4.sdk/Developer/Library/Frameworks -c -j10 -enable-batch-mode -incremental -Xcc -ivfsstatcache -Xcc /Users/admin/builder/spi-builder-workspace/.derivedData/SDKStatCaches.noindex/watchos26.4-23T238-688ef53f1462e2c8f657fdc38a81448f9e51884a582f42380855760c9d4cc599.sdkstatcache -output-file-map /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/OKLCHGradient.build/Debug-watchos/OKLCHGradient.build/Objects-normal/arm64_32/OKLCHGradient-OutputFileMap.json -use-frontend-parseable-output -save-temps -no-color-diagnostics -explicit-module-build -module-cache-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftExplicitPrecompiledModules -clang-scanner-module-cache-path /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex -sdk-module-cache-path /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex -serialize-diagnostics -emit-dependencies -emit-module -emit-module-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/OKLCHGradient.build/Debug-watchos/OKLCHGradient.build/Objects-normal/arm64_32/OKLCHGradient.swiftmodule -validate-clang-modules-once -clang-build-session-file /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex/Session.modulevalidation -package-name spi_builder_workspace -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/OKLCHGradient.build/Debug-watchos/OKLCHGradient.build/swift-overrides.hmap -emit-const-values -Xfrontend -const-gather-protocols-file -Xfrontend /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/OKLCHGradient.build/Debug-watchos/OKLCHGradient.build/Objects-normal/arm64_32/OKLCHGradient_const_extract_protocols.json -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug-watchos/include -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/OKLCHGradient.build/Debug-watchos/OKLCHGradient.build/DerivedSources-normal/arm64_32 -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/OKLCHGradient.build/Debug-watchos/OKLCHGradient.build/DerivedSources/arm64_32 -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/OKLCHGradient.build/Debug-watchos/OKLCHGradient.build/DerivedSources -Xcc -DSWIFT_PACKAGE -Xcc -DDEBUG\=1 -emit-objc-header -emit-objc-header-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/OKLCHGradient.build/Debug-watchos/OKLCHGradient.build/Objects-normal/arm64_32/OKLCHGradient-Swift.h -working-directory /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode -experimental-emit-module-separately -disable-cmo
SwiftDriver OKLCHGradient normal armv7k com.apple.xcode.tools.swift.compiler (in target 'OKLCHGradient' from project 'OKLCHGradient')
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode
    builtin-SwiftDriver -- /Applications/Xcode-26.4.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/swiftc -module-name OKLCHGradient -Onone @/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/OKLCHGradient.build/Debug-watchos/OKLCHGradient.build/Objects-normal/armv7k/OKLCHGradient.SwiftFileList -DSWIFT_PACKAGE -DDEBUG -DSWIFT_MODULE_RESOURCE_BUNDLE_AVAILABLE -DXcode -plugin-path /Applications/Xcode-26.4.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/lib/swift/host/plugins/testing -enable-experimental-feature DebugDescriptionMacro -sdk /Applications/Xcode-26.4.0.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS26.4.sdk -target armv7k-apple-watchos6.0 -g -module-cache-path /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex -Xfrontend -serialize-debugging-options -enable-testing -index-store-path /Users/admin/builder/spi-builder-workspace/.derivedData/Index.noindex/DataStore -Xcc -D_LIBCPP_HARDENING_MODE\=_LIBCPP_HARDENING_MODE_DEBUG -swift-version 5 -I /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug-watchos -Isystem /Applications/Xcode-26.4.0.app/Contents/Developer/Platforms/WatchOS.platform/Developer/usr/lib -F /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug-watchos -F /Applications/Xcode-26.4.0.app/Contents/Developer/Platforms/WatchOS.platform/Developer/Library/Frameworks -F /Applications/Xcode-26.4.0.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS26.4.sdk/Developer/Library/Frameworks -c -j10 -enable-batch-mode -incremental -Xcc -ivfsstatcache -Xcc /Users/admin/builder/spi-builder-workspace/.derivedData/SDKStatCaches.noindex/watchos26.4-23T238-688ef53f1462e2c8f657fdc38a81448f9e51884a582f42380855760c9d4cc599.sdkstatcache -output-file-map /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/OKLCHGradient.build/Debug-watchos/OKLCHGradient.build/Objects-normal/armv7k/OKLCHGradient-OutputFileMap.json -use-frontend-parseable-output -save-temps -no-color-diagnostics -explicit-module-build -module-cache-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftExplicitPrecompiledModules -clang-scanner-module-cache-path /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex -sdk-module-cache-path /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex -serialize-diagnostics -emit-dependencies -emit-module -emit-module-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/OKLCHGradient.build/Debug-watchos/OKLCHGradient.build/Objects-normal/armv7k/OKLCHGradient.swiftmodule -validate-clang-modules-once -clang-build-session-file /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex/Session.modulevalidation -package-name spi_builder_workspace -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/OKLCHGradient.build/Debug-watchos/OKLCHGradient.build/swift-overrides.hmap -emit-const-values -Xfrontend -const-gather-protocols-file -Xfrontend /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/OKLCHGradient.build/Debug-watchos/OKLCHGradient.build/Objects-normal/armv7k/OKLCHGradient_const_extract_protocols.json -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug-watchos/include -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/OKLCHGradient.build/Debug-watchos/OKLCHGradient.build/DerivedSources-normal/armv7k -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/OKLCHGradient.build/Debug-watchos/OKLCHGradient.build/DerivedSources/armv7k -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/OKLCHGradient.build/Debug-watchos/OKLCHGradient.build/DerivedSources -Xcc -DSWIFT_PACKAGE -Xcc -DDEBUG\=1 -emit-objc-header -emit-objc-header-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/OKLCHGradient.build/Debug-watchos/OKLCHGradient.build/Objects-normal/armv7k/OKLCHGradient-Swift.h -working-directory /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode -experimental-emit-module-separately -disable-cmo
2026-04-17 12:05:37.391 xcodebuild[638:3897] [MT] IDERunDestination: Supported platforms for the buildables in the current scheme is empty.
** BUILD FAILED **
The following build commands failed:
	CompileMetalFile /Users/admin/builder/spi-builder-workspace/Sources/OKLCHGradient/OKLCHGradient.metal (in target 'OKLCHGradient_OKLCHGradient' from project 'OKLCHGradient')
	Building workspace spi-builder-workspace with scheme OKLCHGradient
(2 failures)
Command line invocation:
    /Applications/Xcode-26.4.0.app/Contents/Developer/usr/bin/xcodebuild -IDEClonedSourcePackagesDirPathOverride=/Users/admin/builder/spi-builder-workspace/.dependencies -resolvePackageDependencies
Resolve Package Graph
Resolved source packages:
  OKLCHGradient: /Users/admin/builder/spi-builder-workspace
resolved source packages: OKLCHGradient
2026-04-17 12:05:41.945 xcodebuild[656:4265] [MT] IDERunDestination: Supported platforms for the buildables in the current scheme is empty.
{
  "dependencies" : [
  ],
  "manifest_display_name" : "OKLCHGradient",
  "name" : "OKLCHGradient",
  "path" : "/Users/admin/builder/spi-builder-workspace",
  "platforms" : [
    {
      "name" : "ios",
      "version" : "15.0"
    },
    {
      "name" : "macos",
      "version" : "12.0"
    },
    {
      "name" : "tvos",
      "version" : "15.0"
    },
    {
      "name" : "visionos",
      "version" : "1.0"
    },
    {
      "name" : "watchos",
      "version" : "6.0"
    }
  ],
  "products" : [
    {
      "name" : "OKLCHGradient",
      "targets" : [
        "OKLCHGradient"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "OKLCHGradient",
      "module_type" : "SwiftTarget",
      "name" : "OKLCHGradient",
      "path" : "Sources/OKLCHGradient",
      "product_memberships" : [
        "OKLCHGradient"
      ],
      "resources" : [
        {
          "path" : "/Users/admin/builder/spi-builder-workspace/Sources/OKLCHGradient/OKLCHGradient.metal",
          "rule" : {
            "process" : {
            }
          }
        }
      ],
      "sources" : [
        "OKLCHAngularGradient.swift",
        "OKLCHEllipticalGradient.swift",
        "OKLCHLinearGradient.swift",
        "OKLCHRadialGradient.swift",
        "Utils.swift"
      ],
      "type" : "library"
    }
  ],
  "tools_version" : "5.9"
}
{
  "workspace" : {
    "name" : "spi-builder-workspace",
    "schemes" : [
      "OKLCHGradient"
    ]
  }
}
2026-04-17 12:05:43.153 xcodebuild[666:4350] [MT] IDERunDestination: Supported platforms for the buildables in the current scheme is empty.
Running build ...
env DEVELOPER_DIR=/Applications/Xcode-26.4.0.app xcrun xcodebuild -IDEClonedSourcePackagesDirPathOverride=$PWD/.dependencies -skipMacroValidation -skipPackagePluginValidation -derivedDataPath $PWD/.derivedData build -scheme OKLCHGradient -destination generic/platform=watchOS
Command line invocation:
    /Applications/Xcode-26.4.0.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 OKLCHGradient -destination generic/platform=watchOS
Resolve Package Graph
Resolved source packages:
  OKLCHGradient: /Users/admin/builder/spi-builder-workspace
ComputePackagePrebuildTargetDependencyGraph
Prepare packages
CreateBuildRequest
SendProjectDescription
CreateBuildOperation
ComputeTargetDependencyGraph
note: Building targets in dependency order
note: Target dependency graph (3 targets)
    Target 'OKLCHGradient' in project 'OKLCHGradient'
        ➜ Explicit dependency on target 'OKLCHGradient' in project 'OKLCHGradient'
        ➜ Explicit dependency on target 'OKLCHGradient_OKLCHGradient' in project 'OKLCHGradient'
    Target 'OKLCHGradient' in project 'OKLCHGradient'
        ➜ Explicit dependency on target 'OKLCHGradient_OKLCHGradient' in project 'OKLCHGradient'
    Target 'OKLCHGradient_OKLCHGradient' in project 'OKLCHGradient' (no dependencies)
GatherProvisioningInputs
CreateBuildDescription
ClangStatCache /Applications/Xcode-26.4.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang-stat-cache /Applications/Xcode-26.4.0.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS26.4.sdk /Users/admin/builder/spi-builder-workspace/.derivedData/SDKStatCaches.noindex/watchos26.4-23T238-688ef53f1462e2c8f657fdc38a81448f9e51884a582f42380855760c9d4cc599.sdkstatcache
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode
    /Applications/Xcode-26.4.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang-stat-cache /Applications/Xcode-26.4.0.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS26.4.sdk -o /Users/admin/builder/spi-builder-workspace/.derivedData/SDKStatCaches.noindex/watchos26.4-23T238-688ef53f1462e2c8f657fdc38a81448f9e51884a582f42380855760c9d4cc599.sdkstatcache
CompileMetalFile /Users/admin/builder/spi-builder-workspace/Sources/OKLCHGradient/OKLCHGradient.metal (in target 'OKLCHGradient_OKLCHGradient' from project 'OKLCHGradient')
    cd /Users/admin/builder/spi-builder-workspace
    /var/run/com.apple.security.cryptexd/mnt/com.apple.MobileAsset.MetalToolchain-v17.5.188.0.lG3W2Z/Metal.xctoolchain/usr/bin/metal -c -target air64-apple-watchos6.0 -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug-watchos/include -F/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug-watchos -isysroot /Applications/Xcode-26.4.0.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS26.4.sdk -fmetal-math-mode\=fast -fmetal-math-fp32-functions\=fast -serialize-diagnostics /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/OKLCHGradient.build/Debug-watchos/OKLCHGradient_OKLCHGradient.build/Metal/OKLCHGradient.dia -o /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/OKLCHGradient.build/Debug-watchos/OKLCHGradient_OKLCHGradient.build/Metal/OKLCHGradient.air -MMD -MT dependencies -MF /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/OKLCHGradient.build/Debug-watchos/OKLCHGradient_OKLCHGradient.build/Metal/OKLCHGradient.dat /Users/admin/builder/spi-builder-workspace/Sources/OKLCHGradient/OKLCHGradient.metal
/Users/admin/builder/spi-builder-workspace/Sources/OKLCHGradient/OKLCHGradient.metal:87:4: error: 'stitchable' attribute requires Metal language standard ios-metal2.3 or higher
[[ stitchable ]] half4 oklchLinearGradient(
   ^~~~~~~~~~
/Users/admin/builder/spi-builder-workspace/Sources/OKLCHGradient/OKLCHGradient.metal:129:4: error: 'stitchable' attribute requires Metal language standard ios-metal2.3 or higher
[[ stitchable ]] half4 oklchRadialGradient(
   ^~~~~~~~~~
/Users/admin/builder/spi-builder-workspace/Sources/OKLCHGradient/OKLCHGradient.metal:171:4: error: 'stitchable' attribute requires Metal language standard ios-metal2.3 or higher
[[ stitchable ]] half4 oklchAngularGradient(
   ^~~~~~~~~~
/Users/admin/builder/spi-builder-workspace/Sources/OKLCHGradient/OKLCHGradient.metal:219:4: error: 'stitchable' attribute requires Metal language standard ios-metal2.3 or higher
[[ stitchable ]] half4 oklchEllipticalGradient(
   ^~~~~~~~~~
4 errors generated.
2026-04-17 12:05:44.163 xcodebuild[669:4388] [MT] IDERunDestination: Supported platforms for the buildables in the current scheme is empty.
** BUILD FAILED **
The following build commands failed:
	CompileMetalFile /Users/admin/builder/spi-builder-workspace/Sources/OKLCHGradient/OKLCHGradient.metal (in target 'OKLCHGradient_OKLCHGradient' from project 'OKLCHGradient')
	Building workspace spi-builder-workspace with scheme OKLCHGradient
(2 failures)
BUILD FAILURE 6.3 watchOS