Swift Package Index

Build Information

Failed to build LibPNG, reference main (575e1a), with Swift 6.3 for macOS (Xcode) using Xcode 26.4 on 21 Sep 2026 04:52:49 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/EvgenijLutz/LibPNG.git
Reference: main
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/EvgenijLutz/LibPNG
 * branch            main       -> FETCH_HEAD
 * [new branch]      main       -> origin/main
HEAD is now at 575e1aa Update to Swift 6.4, use sized_by instead of counted_by for raw memory buffers
Cloned https://github.com/EvgenijLutz/LibPNG.git
Revision (git rev-parse @):
575e1aa26d73b385cf79a6d59a1d8a020c8613ae
SUCCESS checkout https://github.com/EvgenijLutz/LibPNG.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/EvgenijLutz/LibPNG.git
Command line invocation:
    /Applications/Xcode-26.5.0.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 6.3.2
Resolved source packages:
  spi-builder-workspace: (null)
2026-09-21 00:52:46.546 xcodebuild[541:3119] [MT] IDERunDestination: Supported platforms for the buildables in the current scheme is empty.
2026-09-21 00:52:46.641 xcodebuild[541:3119] [MT] IDERunDestination: Supported platforms for the buildables in the current scheme is empty.
2026-09-21 00:52:47.690 xcodebuild[541:3119] Writing error result bundle to /var/folders/xq/y_g06wb113726d38xsyx71_h0000gn/T/ResultBundle_2026-21-09_00-52-0047.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 6.3.2
Command line invocation:
    /Applications/Xcode-26.5.0.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 6.3.2
Resolved source packages:
  spi-builder-workspace: (null)
2026-09-21 00:52:48.531 xcodebuild[609:3625] [MT] IDERunDestination: Supported platforms for the buildables in the current scheme is empty.
2026-09-21 00:52:48.635 xcodebuild[609:3625] [MT] IDERunDestination: Supported platforms for the buildables in the current scheme is empty.
2026-09-21 00:52:49.351 xcodebuild[609:3625] Writing error result bundle to /var/folders/xq/y_g06wb113726d38xsyx71_h0000gn/T/ResultBundle_2026-21-09_00-52-0049.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 6.3.2
BUILD FAILURE 6.3 macosXcodebuild