Build Information
Failed to build swift-play-experimental, reference main (187e8e), with Swift 6.4 for watchOS using Xcode 27.0 on 25 Sep 2026 18:41:08 UTC.
Build Command
No build command. This typically means the build failed at an early stage where we determine the build command.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/apple/swift-play-experimental.git
Reference: main
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/apple/swift-play-experimental
* branch main -> FETCH_HEAD
* [new branch] main -> origin/main
HEAD is now at 187e8ed Remove "legacy" test content discovery path. (#8)
Cloned https://github.com/apple/swift-play-experimental.git
Revision (git rev-parse @):
187e8ed7f98cb58f3c882341252f1963a6e08769
SUCCESS checkout https://github.com/apple/swift-play-experimental.git at main
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Build
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Selected platform: watchOS
Swift version: 6.4
Building package at path: $PWD
https://github.com/apple/swift-play-experimental.git
Command line invocation:
/Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/usr/bin/xcodebuild -IDEClonedSourcePackagesDirPathOverride=/Users/admin/builder/spi-builder-workspace/.dependencies -resolvePackageDependencies
Resolve Package Graph
Fetching from https://github.com/swiftlang/swift-testing.git
Fetching from https://github.com/apple/swift-argument-parser.git
Fetching from https://github.com/swiftlang/swift-syntax.git
Resolve Package Graph
Updating from https://github.com/swiftlang/swift-testing.git
Updating from https://github.com/swiftlang/swift-syntax.git
Updating from https://github.com/apple/swift-argument-parser.git
Resolve Package Graph
Updating from https://github.com/swiftlang/swift-testing.git
Updating from https://github.com/apple/swift-argument-parser.git
Updating from https://github.com/swiftlang/swift-syntax.git
Resolve Package Graph
Updating from https://github.com/swiftlang/swift-testing.git
Updating from https://github.com/swiftlang/swift-syntax.git
Updating from https://github.com/apple/swift-argument-parser.git
Resolved source packages:
spi-builder-workspace: (null)
2026-09-25 14:41:05.170 xcodebuild[525:2999] Writing error result bundle to /var/folders/xq/y_g06wb113726d38xsyx71_h0000gn/T/ResultBundle_2026-25-09_14-41-0005.xcresult
xcodebuild: error: Could not resolve package dependencies:
Failed to resolve dependencies Dependencies could not be resolved because 'swift-testing' depends on 'swift-syntax' 605.0.0-latest..<606.0.0.
'swift-syntax' 604.0.0-latest..<605.0.0-latest is required because no versions of 'swift-syntax' match the requirement 605.0.0-latest..<605.0.0 and root depends on 'swift-syntax' 604.0.0-latest..<605.0.0.
Command line invocation:
/Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/usr/bin/xcodebuild -IDEClonedSourcePackagesDirPathOverride=/Users/admin/builder/spi-builder-workspace/.dependencies -resolvePackageDependencies
Resolve Package Graph
Updating from https://github.com/swiftlang/swift-testing.git
Updating from https://github.com/apple/swift-argument-parser.git
Updating from https://github.com/swiftlang/swift-syntax.git
Resolved source packages:
spi-builder-workspace: (null)
2026-09-25 14:41:08.184 xcodebuild[740:4119] Writing error result bundle to /var/folders/xq/y_g06wb113726d38xsyx71_h0000gn/T/ResultBundle_2026-25-09_14-41-0008.xcresult
xcodebuild: error: Could not resolve package dependencies:
Failed to resolve dependencies Dependencies could not be resolved because 'swift-testing' depends on 'swift-syntax' 605.0.0-latest..<606.0.0.
'swift-syntax' 604.0.0-latest..<605.0.0-latest is required because no versions of 'swift-syntax' match the requirement 605.0.0-latest..<605.0.0 and root depends on 'swift-syntax' 604.0.0-latest..<605.0.0.
BUILD FAILURE 6.4 watchOS