Swift Package Index

Build Information

Failed to build SwiftGraphviz, reference main (56fab0), with Swift 6.3 for macOS (Xcode) using Xcode 26.4 on 19 Apr 2026 20:03:21 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: 4.70.0
Interrupt handler set up.
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Checkout
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Clone URL: https://github.com/Vithanco/SwiftGraphviz.git
Reference: main
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/Vithanco/SwiftGraphviz
 * branch            main       -> FETCH_HEAD
 * [new branch]      main       -> origin/main
HEAD is now at 56fab06 fix: link libc++ explicitly for Xcode 26 compatibility
Cloned https://github.com/Vithanco/SwiftGraphviz.git
Revision (git rev-parse @):
56fab063ee31ebea9c75116cf2d1b946de2bc55c
SUCCESS checkout https://github.com/Vithanco/SwiftGraphviz.git at main
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Build
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Selected platform:         macosXcodebuild
Swift version:             6.3
Building package at path:  $PWD
https://github.com/Vithanco/SwiftGraphviz.git
Command line invocation:
    /Applications/Xcode-26.4.0.app/Contents/Developer/usr/bin/xcodebuild -IDEClonedSourcePackagesDirPathOverride=/Users/admin/builder/spi-builder-workspace/.dependencies -resolvePackageDependencies
Resolve Package Graph
target at '/Users/admin/builder/spi-builder-workspace/Sources' contains mixed language source files; feature not supported
Resolve Package Graph
target at '/Users/admin/builder/spi-builder-workspace/Sources' contains mixed language source files; feature not supported
Resolved source packages:
  spi-builder-workspace: (null)
2026-04-19 16:03:19.268 xcodebuild[529:3058] Writing error result bundle to /var/folders/xq/y_g06wb113726d38xsyx71_h0000gn/T/ResultBundle_2026-19-04_16-03-0019.xcresult
xcodebuild: error: Could not resolve package dependencies:
  target at '/Users/admin/builder/spi-builder-workspace/Sources' contains mixed language source files; feature not supported
Command line invocation:
    /Applications/Xcode-26.4.0.app/Contents/Developer/usr/bin/xcodebuild -IDEClonedSourcePackagesDirPathOverride=/Users/admin/builder/spi-builder-workspace/.dependencies -resolvePackageDependencies
Resolve Package Graph
target at '/Users/admin/builder/spi-builder-workspace/Sources' contains mixed language source files; feature not supported
Resolved source packages:
  spi-builder-workspace: (null)
2026-04-19 16:03:20.973 xcodebuild[588:3610] Writing error result bundle to /var/folders/xq/y_g06wb113726d38xsyx71_h0000gn/T/ResultBundle_2026-19-04_16-03-0020.xcresult
xcodebuild: error: Could not resolve package dependencies:
  target at '/Users/admin/builder/spi-builder-workspace/Sources' contains mixed language source files; feature not supported
BUILD FAILURE 6.3 macosXcodebuild