Swift Package Index

Build Information

Failed to build swift-slack, reference main (2aa6cf), with Swift 6.1 for macOS (Xcode) using Xcode 16.3 on 23 Oct 2026 23:14:37 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: 5.1.3
Interrupt handler set up.
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Checkout
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Clone URL: https://github.com/ainame/swift-slack.git
Reference: main
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/ainame/swift-slack
 * branch            main       -> FETCH_HEAD
 * [new branch]      main       -> origin/main
HEAD is now at 2aa6cf4 Clarify beta recommendation for new apps
Submodule path 'vendor/java-slack-sdk': checked out '43fad0e0943e53991d9298d08588915116a7a0aa'
Submodule path 'vendor/slack-api-ref': checked out '0ae4e986fbdb824fd4af8ca175ca45142377c8c3'
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 @):
2aa6cf4cfe6af02731955933bf53aa6c762184bb
SPI manifest file found: $PWD/.spi.yml
SUCCESS checkout https://github.com/ainame/swift-slack.git at main
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Build
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Selected platform:         macosXcodebuild
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)
2026-10-23 16:14:36.578 xcodebuild[525:2969] Writing error result bundle to /var/folders/5k/5yc19ymj0jqd5v0zvgfqz0xw0000gn/T/ResultBundle_2026-23-10_16-14-0036.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)
2026-10-23 16:14:37.870 xcodebuild[563:3208] Writing error result bundle to /var/folders/5k/5yc19ymj0jqd5v0zvgfqz0xw0000gn/T/ResultBundle_2026-23-10_16-14-0037.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 macosXcodebuild