Swift Package Index

Build Information

Failed to build FlexLayout, reference 2.2.3 (b1fcc8), with Swift 6.4 for macOS (SPM) on 23 Sep 2026 15:18:36 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/layoutbox/flexlayout.git
Reference: 2.2.3
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/layoutbox/flexlayout
 * tag               2.2.3      -> FETCH_HEAD
HEAD is now at b1fcc81 Update version to 2.2.3
Cloned https://github.com/layoutbox/flexlayout.git
Revision (git rev-parse @):
b1fcc81828e4b735c79d4c3fac35ef0754be0060
SUCCESS checkout https://github.com/layoutbox/flexlayout.git at 2.2.3
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Build
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Selected platform:         macosSpm
Swift version:             6.4
Building package at path:  $PWD
https://github.com/layoutbox/flexlayout.git
Running build ...
env DEVELOPER_DIR=/Applications/Xcode-27.0.0-Release.Candidate.app xcrun swift build --arch arm64
Building for debugging...
[Pre-planning 1 / 156]
[Planning deferred tasks]
[29 / 67]
[40 / 68] FlexLayout
[48 / 68] core
[49 / 68] core
[50 / 68] FlexLayoutYogaKit
Fetching https://github.com/facebook/yoga.git
[1/45494] Fetching yoga
Fetched https://github.com/facebook/yoga.git (4.88s)
Computing version for https://github.com/facebook/yoga.git
Computed https://github.com/facebook/yoga.git at 3.2.1 (5.55s)
Creating working copy for https://github.com/facebook/yoga.git
Working copy of https://github.com/facebook/yoga.git resolved at 3.2.1
error: clang dependency scanning failure: While building module 'FlexLayoutYogaKit' imported from module-include.input:1:
In file included from <module-includes>:1:
/Users/admin/builder/spi-builder-workspace/Sources/YogaKit/include/YogaKit/UIView+Yoga.h:8:9: fatal error: 'UIKit/UIKit.h' file not found
module-include.input:1:3: fatal error: could not build module 'FlexLayoutYogaKit'
error: /Users/admin/builder/spi-builder-workspace/Sources/Swift/FlexLayout.swift:15:8 unable to resolve module dependency: 'UIKit'
error: /Users/admin/builder/spi-builder-workspace/Sources/Swift/FlexLayout.swift:18:8 unable to resolve module dependency: 'FlexLayoutYogaKit'
error: clang dependency scanning failure: While building module 'FlexLayoutYogaKit' imported from module-include.input:1:
In file included from <module-includes>:1:
/Users/admin/builder/spi-builder-workspace/Sources/YogaKit/include/YogaKit/UIView+Yoga.h:8:9: fatal error: 'UIKit/UIKit.h' file not found
module-include.input:1:3: fatal error: could not build module 'FlexLayoutYogaKit'
error: SwiftDriver FlexLayout 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 FlexLayout -Onone @/Users/admin/builder/spi-builder-workspace/.build/out/Intermediates.noindex/FlexLayout.build/Debug/FlexLayout-t.build/Objects-normal/arm64/FlexLayout.SwiftFileList -DSWIFT_PACKAGE -DDEBUG -DSWIFT_MODULE_RESOURCE_BUNDLE_UNAVAILABLE -Xcc -fmodule-map-file\=/Users/admin/builder/spi-builder-workspace/.build/out/Intermediates.noindex/GeneratedModuleMaps/core.modulemap -Xcc -fmodule-map-file\=/Users/admin/builder/spi-builder-workspace/.build/out/Intermediates.noindex/GeneratedModuleMaps/FlexLayoutYogaKit.modulemap -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 5 -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/FlexLayout.build/Debug/FlexLayout-t.build/Objects-normal/arm64/FlexLayout-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/FlexLayout.build/Debug/FlexLayout-t.build/Objects-normal/arm64/FlexLayout.swiftmodule -serialize-diagnostics -dependency-scan-serialize-diagnostics-path /Users/admin/builder/spi-builder-workspace/.build/out/Intermediates.noindex/FlexLayout.build/Debug/FlexLayout-t.build/Objects-normal/arm64/FlexLayout-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 -emit-const-values -const-gather-protocols-list /Users/admin/builder/spi-builder-workspace/.build/out/Intermediates.noindex/FlexLayout.build/Debug/FlexLayout-t.build/Objects-normal/arm64/FlexLayout_const_extract_protocols.json -Xcc -I/Users/admin/builder/spi-builder-workspace/.build/checkouts/yoga -Xcc -I/Users/admin/builder/spi-builder-workspace/Sources/YogaKit/include/YogaKit -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/FlexLayout.build/Debug/FlexLayout-t.build/DerivedSources-normal/arm64 -Xcc -I/Users/admin/builder/spi-builder-workspace/.build/out/Intermediates.noindex/FlexLayout.build/Debug/FlexLayout-t.build/DerivedSources/arm64 -Xcc -I/Users/admin/builder/spi-builder-workspace/.build/out/Intermediates.noindex/FlexLayout.build/Debug/FlexLayout-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/FlexLayout.build/Debug/FlexLayout-t.build/Objects-normal/arm64/FlexLayout-Swift.h -working-directory /Users/admin/builder -experimental-emit-module-separately -disable-cmo
error: Build failed
BUILD FAILURE 6.4 macosSpm