Swift Package Index

Build Information

Failed to build SwiftDelta, reference v1.0.0 (619456), with Swift 6.1 for iOS using Xcode 16.3 on 13 Aug 2026 00:59:34 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: undefined version: run 'make version' to update
Interrupt handler set up.
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Checkout
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Clone URL: https://github.com/Jiaxu-Li/SwiftDelta.git
Reference: v1.0.0
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/Jiaxu-Li/SwiftDelta
 * tag               v1.0.0     -> FETCH_HEAD
HEAD is now at 6194567 Initial open source release of SwiftDelta 1.0.0
Cloned https://github.com/Jiaxu-Li/SwiftDelta.git
Revision (git rev-parse @):
61945673f0f31588cb37a9c44801dfb1ed8ba313
SUCCESS checkout https://github.com/Jiaxu-Li/SwiftDelta.git at v1.0.0
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Build
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Selected platform:         iOS
Swift version:             6.1
Building package at path:  $PWD
https://github.com/Jiaxu-Li/SwiftDelta.git
https://github.com/Jiaxu-Li/SwiftDelta.git
error: 'spi-builder-workspace': package 'spi-builder-workspace' is using Swift tools version 6.4.0 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 6.4.0 but the installed version is 6.1.0
Resolved source packages:
  spi-builder-workspace: (null)
2026-08-12 17:59:33.333 xcodebuild[504:2898] Writing error result bundle to /var/folders/5k/5yc19ymj0jqd5v0zvgfqz0xw0000gn/T/ResultBundle_2026-12-08_17-59-0033.xcresult
xcodebuild: error: Could not resolve package dependencies:
  package 'spi-builder-workspace' is using Swift tools version 6.4.0 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 6.4.0 but the installed version is 6.1.0
Resolved source packages:
  spi-builder-workspace: (null)
2026-08-12 17:59:34.068 xcodebuild[516:3022] Writing error result bundle to /var/folders/5k/5yc19ymj0jqd5v0zvgfqz0xw0000gn/T/ResultBundle_2026-12-08_17-59-0034.xcresult
xcodebuild: error: Could not resolve package dependencies:
  package 'spi-builder-workspace' is using Swift tools version 6.4.0 but the installed version is 6.1.0
BUILD FAILURE 6.1 iOS