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Build Information

Failed to build WindowKit, reference main (e6247f), with Swift 6.4 for macOS (SPM) on 23 Sep 2026 15:38:28 UTC.

Build Command

env DEVELOPER_DIR=/Applications/Xcode-27.0.0-Release.Candidate.app xcrun swift build --arch arm64

Build Log

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RunAll
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Builder version: 5.1.0
Interrupt handler set up.
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Checkout
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Clone URL: https://github.com/divadretlaw/WindowKit.git
Reference: main
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/divadretlaw/WindowKit
 * branch            main       -> FETCH_HEAD
 * [new branch]      main       -> origin/main
HEAD is now at e6247f6 Improve documentation
Cloned https://github.com/divadretlaw/WindowKit.git
Revision (git rev-parse @):
e6247f604136794633c60eac0c2197db777b8f50
SPI manifest file found: $PWD/.spi.yml
SUCCESS checkout https://github.com/divadretlaw/WindowKit.git at main
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Build
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Selected platform:         macosSpm
Swift version:             6.4
Building package at path:  $PWD
https://github.com/divadretlaw/WindowKit.git
Running build ...
env DEVELOPER_DIR=/Applications/Xcode-27.0.0-Release.Candidate.app xcrun swift build --arch arm64
Building for debugging...
[Constructing description]
[Planning deferred tasks]
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[32 / 57] WindowReader
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[104 / 129] WindowReader
[111 / 130] WindowSceneReader
[115 / 134] WindowSceneReader
Fetching https://github.com/divadretlaw/WindowSceneReader
Fetching https://github.com/divadretlaw/WindowReader
[1/136] Fetching windowreader
[10/272] Fetching windowreader, windowscenereader
Fetched https://github.com/divadretlaw/WindowSceneReader (1.10s)
Fetched https://github.com/divadretlaw/WindowReader (1.10s)
Computing version for https://github.com/divadretlaw/WindowSceneReader
Computed https://github.com/divadretlaw/WindowSceneReader at 3.3.0 (1.74s)
Computing version for https://github.com/divadretlaw/WindowReader
Computed https://github.com/divadretlaw/WindowReader at 3.1.0 (0.54s)
Creating working copy for https://github.com/divadretlaw/WindowReader
Working copy of https://github.com/divadretlaw/WindowReader resolved at 3.1.0
Creating working copy for https://github.com/divadretlaw/WindowSceneReader
Working copy of https://github.com/divadretlaw/WindowSceneReader resolved at 3.3.0
error: /Users/admin/builder/spi-builder-workspace/Sources/WindowKit/Extensions/UIViewController+Extensions.swift:8:8 unable to resolve module dependency: 'UIKit'
error: SwiftDriver WindowKit normal arm64 com.apple.xcode.tools.swift.compiler failed with a nonzero exit code. Command line:     cd /Users/admin/builder
    builtin-SwiftDriver -- /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/swiftc -parse-as-library -module-name WindowKit -Onone @/Users/admin/builder/spi-builder-workspace/.build/out/Intermediates.noindex/WindowKit.build/Debug/WindowKit-t.build/Objects-normal/arm64/WindowKit.SwiftFileList -DSWIFT_PACKAGE -DDEBUG -DSWIFT_MODULE_RESOURCE_BUNDLE_UNAVAILABLE -DXcode -plugin-path /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/lib/swift/host/plugins/testing -enable-experimental-feature DebugDescriptionMacro -sdk /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX27.0.sdk -target arm64-apple-macos12.0 -g -module-cache-path /Users/admin/builder/spi-builder-workspace/.build/out/ModuleCache.noindex -Xfrontend -serialize-debugging-options -enable-testing -index-store-path /Users/admin/builder/spi-builder-workspace/.build/out -Xcc -D_LIBCPP_HARDENING_MODE\=_LIBCPP_HARDENING_MODE_DEBUG -swift-version 6 -I /Users/admin/builder/spi-builder-workspace/.build/out/Products/Debug -Isystem /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Platforms/MacOSX.platform/Developer/usr/lib -F /Users/admin/builder/spi-builder-workspace/.build/out/Products/Debug/PackageFrameworks -F /Users/admin/builder/spi-builder-workspace/.build/out/Products/Debug -F /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Platforms/MacOSX.platform/Developer/Library/Frameworks -c -j10 -enable-batch-mode -incremental -Xcc -ivfsstatcache -Xcc /Users/admin/builder/spi-builder-workspace/.build/out/SDKStatCaches.noindex/macosx27.0-26A425-80c5bbf1d171475443272936d42f90a36a22442a12e9d48fe1a705f55a1adfc4.sdkstatcache -output-file-map /Users/admin/builder/spi-builder-workspace/.build/out/Intermediates.noindex/WindowKit.build/Debug/WindowKit-t.build/Objects-normal/arm64/WindowKit-OutputFileMap.json -save-temps -color-diagnostics -explicit-module-build -module-cache-path /Users/admin/builder/spi-builder-workspace/.build/out/Intermediates.noindex/SwiftExplicitPrecompiledModules -clang-scanner-module-cache-path /Users/admin/builder/spi-builder-workspace/.build/out/ModuleCache.noindex -sdk-module-cache-path /Users/admin/builder/spi-builder-workspace/.build/out/SDKExplicitPrecompiledModules -emit-dependencies -emit-module -emit-module-path /Users/admin/builder/spi-builder-workspace/.build/out/Intermediates.noindex/WindowKit.build/Debug/WindowKit-t.build/Objects-normal/arm64/WindowKit.swiftmodule -serialize-diagnostics -dependency-scan-serialize-diagnostics-path /Users/admin/builder/spi-builder-workspace/.build/out/Intermediates.noindex/WindowKit.build/Debug/WindowKit-t.build/Objects-normal/arm64/WindowKit-dependency-scan.dia -validate-clang-modules-once -clang-build-session-file /Users/admin/builder/spi-builder-workspace/.build/out/ModuleCache.noindex/Session.modulevalidation -Xcc -fmodules-prune-interval\=86400 -Xcc -fmodules-prune-after\=345600 -package-name spi_builder_workspace -emit-const-values -const-gather-protocols-list /Users/admin/builder/spi-builder-workspace/.build/out/Intermediates.noindex/WindowKit.build/Debug/WindowKit-t.build/Objects-normal/arm64/WindowKit_const_extract_protocols.json -Xcc -I/Users/admin/builder/spi-builder-workspace/.build/out/Products/Debug/include -Xcc -I/Users/admin/builder/spi-builder-workspace/.build/out/Intermediates.noindex/WindowKit.build/Debug/WindowKit-t.build/DerivedSources-normal/arm64 -Xcc -I/Users/admin/builder/spi-builder-workspace/.build/out/Intermediates.noindex/WindowKit.build/Debug/WindowKit-t.build/DerivedSources/arm64 -Xcc -I/Users/admin/builder/spi-builder-workspace/.build/out/Intermediates.noindex/WindowKit.build/Debug/WindowKit-t.build/DerivedSources -Xcc -DSWIFT_PACKAGE -Xcc -DDEBUG\=1 -emit-objc-header -emit-objc-header-path /Users/admin/builder/spi-builder-workspace/.build/out/Intermediates.noindex/WindowKit.build/Debug/WindowKit-t.build/Objects-normal/arm64/WindowKit-Swift.h -working-directory /Users/admin/builder -experimental-emit-module-separately -disable-cmo
error: Build failed
BUILD FAILURE 6.4 macosSpm