Build Information
Failed to build swiftly, reference main (20ceb4), with Swift 5.10 for iOS using Xcode 15.4 on 13 Dec 2025 07:29:01 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: 4.68.0
Interrupt handler set up.
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Checkout
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Clone URL: https://github.com/swiftlang/swiftly.git
Reference: main
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/swiftlang/swiftly
* branch main -> FETCH_HEAD
* [new branch] main -> origin/main
HEAD is now at 20ceb47 Ensure the macOS SDK exists at install time (#480)
Cloned https://github.com/swiftlang/swiftly.git
Revision (git rev-parse @):
20ceb4748fd55a7e0574cf426b70f978a2636418
SPI manifest file found: $PWD/.spi.yml
SUCCESS checkout https://github.com/swiftlang/swiftly.git at main
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Build
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Selected platform: iOS
Swift version: 5.10
Building package at path: $PWD
https://github.com/swiftlang/swiftly.git
Command line invocation:
/Applications/Xcode-15.4.0.app/Contents/Developer/usr/bin/xcodebuild -IDEClonedSourcePackagesDirPathOverride=/Users/admin/builder/spi-builder-workspace/.dependencies -resolvePackageDependencies
User defaults from command line:
IDEClonedSourcePackagesDirPathOverride = /Users/admin/builder/spi-builder-workspace/.dependencies
IDEPackageSupportUseBuiltinSCM = YES
Resolve Package Graph
package 'spi-builder-workspace' is using Swift tools version 6.2.0 but the installed version is 5.10.0
Resolved source packages:
spi-builder-workspace: /Users/admin/builder/spi-builder-workspace
2025-12-13 02:28:58.839 xcodebuild[487:2700] Writing error result bundle to /var/folders/fs/0w3t9t1d28xc3bj0tgb8hcrw0000gn/T/ResultBundle_2025-13-12_02-28-0058.xcresult
xcodebuild: error: Could not resolve package dependencies:
package 'spi-builder-workspace' is using Swift tools version 6.2.0 but the installed version is 5.10.0
Command line invocation:
/Applications/Xcode-15.4.0.app/Contents/Developer/usr/bin/xcodebuild -IDEClonedSourcePackagesDirPathOverride=/Users/admin/builder/spi-builder-workspace/.dependencies -resolvePackageDependencies
User defaults from command line:
IDEClonedSourcePackagesDirPathOverride = /Users/admin/builder/spi-builder-workspace/.dependencies
IDEPackageSupportUseBuiltinSCM = YES
Resolve Package Graph
package 'spi-builder-workspace' is using Swift tools version 6.2.0 but the installed version is 5.10.0
Resolved source packages:
spi-builder-workspace: /Users/admin/builder/spi-builder-workspace
2025-12-13 02:29:00.549 xcodebuild[538:2995] Writing error result bundle to /var/folders/fs/0w3t9t1d28xc3bj0tgb8hcrw0000gn/T/ResultBundle_2025-13-12_02-29-0000.xcresult
xcodebuild: error: Could not resolve package dependencies:
package 'spi-builder-workspace' is using Swift tools version 6.2.0 but the installed version is 5.10.0
BUILD FAILURE 5.10 iOS