Swift Package Index

Build Information

Failed to build swift-differentiation-stdlib, reference 604.0.0 (e96b16), with Swift 6.1 for tvOS using Xcode 16.3 on 28 Sep 2026 19:59:36 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: 604.0.0
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/differentiable-swift/swift-differentiation-stdlib
 * tag               604.0.0    -> FETCH_HEAD
HEAD is now at e96b16d release: 604.0.0 (swift-6.4.0-RELEASE)
Cloned https://github.com/differentiable-swift/swift-differentiation-stdlib.git
Revision (git rev-parse @):
e96b16df7437e9b357dea9c0db6ad3a76cddfecd
SUCCESS checkout https://github.com/differentiable-swift/swift-differentiation-stdlib.git at 604.0.0
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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 12:59:35.421 xcodebuild[504:2884] Writing error result bundle to /var/folders/5k/5yc19ymj0jqd5v0zvgfqz0xw0000gn/T/ResultBundle_2026-28-09_12-59-0035.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 12:59:36.166 xcodebuild[512:2956] Writing error result bundle to /var/folders/5k/5yc19ymj0jqd5v0zvgfqz0xw0000gn/T/ResultBundle_2026-28-09_12-59-0036.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
BUILD FAILURE 6.1 tvOS