Swift Package Index

Build Information

Failed to build swift-differentiation-stdlib, reference 605.0.0-prerelease-1 (3af76b), with Swift 6.1 for tvOS using Xcode 16.3 on 28 Sep 2026 19:54:24 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/differentiable-swift/swift-differentiation-stdlib.git
Reference: 605.0.0-prerelease-1
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/differentiable-swift/swift-differentiation-stdlib
 * tag               605.0.0-prerelease-1 -> FETCH_HEAD
HEAD is now at 3af76b9 release: 605.0.0-prerelease-1 (swift-DEVELOPMENT-SNAPSHOT-2026-09-21-a)
Cloned https://github.com/differentiable-swift/swift-differentiation-stdlib.git
Revision (git rev-parse @):
3af76b9a110bf78ca45d2cfb52e58014e2e73949
SUCCESS checkout https://github.com/differentiable-swift/swift-differentiation-stdlib.git at 605.0.0-prerelease-1
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Build
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Selected platform:         tvOS
Swift version:             6.1
Building package at path:  $PWD
https://github.com/differentiable-swift/swift-differentiation-stdlib.git
https://github.com/differentiable-swift/swift-differentiation-stdlib.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)
2026-09-28 12:54:24.049 xcodebuild[503:2882] Writing error result bundle to /var/folders/5k/5yc19ymj0jqd5v0zvgfqz0xw0000gn/T/ResultBundle_2026-28-09_12-54-0024.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)
2026-09-28 12:54:24.731 xcodebuild[514:2978] Writing error result bundle to /var/folders/5k/5yc19ymj0jqd5v0zvgfqz0xw0000gn/T/ResultBundle_2026-28-09_12-54-0024.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 tvOS