Build Information
Failed to build java_lang, reference 2.4.0 (2617a2), with Swift 6.3 for visionOS using Xcode 26.4 on 14 Apr 2026 03:27:59 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: 4.70.0
Interrupt handler set up.
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Checkout
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Clone URL: https://github.com/PureSwift/java_lang.git
Reference: 2.4.0
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/PureSwift/java_lang
* tag 2.4.0 -> FETCH_HEAD
HEAD is now at 2617a20 Swift 4.2/5
Cloned https://github.com/PureSwift/java_lang.git
Revision (git rev-parse @):
2617a2065e53fe0a1cf1151d3ccf40a435a3eeb8
SUCCESS checkout https://github.com/PureSwift/java_lang.git at 2.4.0
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Build
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Selected platform: visionOS
Swift version: 6.3
Building package at path: $PWD
https://github.com/PureSwift/java_lang.git
Command line invocation:
/Applications/Xcode-26.4.0.app/Contents/Developer/usr/bin/xcodebuild -IDEClonedSourcePackagesDirPathOverride=/Users/admin/builder/spi-builder-workspace/.dependencies -resolvePackageDependencies
resolved source packages:
error: 'spi-builder-workspace': the Swift tools version specification is missing a label; consider inserting 'swift-tools-version:' between the comment marker and the version specifier
error: fatalError
Command line invocation:
/Applications/Xcode-26.4.0.app/Contents/Developer/usr/bin/xcodebuild -IDEClonedSourcePackagesDirPathOverride=/Users/admin/builder/spi-builder-workspace/.dependencies -resolvePackageDependencies
resolved source packages:
error: 'spi-builder-workspace': the Swift tools version specification is missing a label; consider inserting 'swift-tools-version:' between the comment marker and the version specifier
error: fatalError
BUILD FAILURE 6.3 visionOS