Swift Package Index

Build Information

Failed to build swift-slack, reference 0.9.0 (a58343), with Swift 6.1 for iOS using Xcode 16.3 on 2 Apr 2026 06:32:32 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: 4.69.2
Interrupt handler set up.
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Checkout
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Clone URL: https://github.com/ainame/swift-slack.git
Reference: 0.9.0
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/ainame/swift-slack
 * tag               0.9.0      -> FETCH_HEAD
HEAD is now at a583432 Prepare 0.9.0 release notes
Submodule path 'vendor/java-slack-sdk': checked out 'd9e6798b6bd0058ce5f6baa677cd156386b103c2'
Submodule path 'vendor/slack-api-ref': checked out '5c03ea747a29b1df8744056a440c1585b325a105'
Submodule 'vendor/java-slack-sdk' (https://github.com/slackapi/java-slack-sdk.git) registered for path 'vendor/java-slack-sdk'
Submodule 'vendor/slack-api-ref' (https://github.com/slack-ruby/slack-api-ref.git) registered for path 'vendor/slack-api-ref'
Cloning into '/Users/admin/builder/spi-builder-workspace/vendor/java-slack-sdk'...
Cloning into '/Users/admin/builder/spi-builder-workspace/vendor/slack-api-ref'...
Cloned https://github.com/ainame/swift-slack.git
Revision (git rev-parse @):
a58343273395e250bf11e031efe84704507ea3e2
SPI manifest file found: $PWD/.spi.yml
SUCCESS checkout https://github.com/ainame/swift-slack.git at 0.9.0
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Build
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Selected platform:         iOS
Swift version:             6.1
Building package at path:  $PWD
https://github.com/ainame/swift-slack.git
https://github.com/ainame/swift-slack.git
error: 'spi-builder-workspace': package 'spi-builder-workspace' is using Swift tools version 6.2.0 but the installed version is 6.1.0
error: fatalError
Command line invocation:
    /Applications/Xcode-16.3.0.app/Contents/Developer/usr/bin/xcodebuild -IDEClonedSourcePackagesDirPathOverride=/Users/admin/builder/spi-builder-workspace/.dependencies -resolvePackageDependencies
Resolve Package Graph
package 'spi-builder-workspace' is using Swift tools version 6.2.0 but the installed version is 6.1.0
Resolved source packages:
  spi-builder-workspace: (null)
2026-04-01 23:32:31.223 xcodebuild[544:3083] Writing error result bundle to /var/folders/5k/5yc19ymj0jqd5v0zvgfqz0xw0000gn/T/ResultBundle_2026-01-04_23-32-0031.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 6.1.0
Command line invocation:
    /Applications/Xcode-16.3.0.app/Contents/Developer/usr/bin/xcodebuild -IDEClonedSourcePackagesDirPathOverride=/Users/admin/builder/spi-builder-workspace/.dependencies -resolvePackageDependencies
Resolve Package Graph
package 'spi-builder-workspace' is using Swift tools version 6.2.0 but the installed version is 6.1.0
Resolved source packages:
  spi-builder-workspace: (null)
2026-04-01 23:32:32.469 xcodebuild[588:3395] Writing error result bundle to /var/folders/5k/5yc19ymj0jqd5v0zvgfqz0xw0000gn/T/ResultBundle_2026-01-04_23-32-0032.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 6.1.0
BUILD FAILURE 6.1 iOS