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Build Information

Failed to build LibPNG, reference main (575e1a), with Swift 6.1 for iOS using Xcode 16.3 on 21 Sep 2026 04:58:09 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:         iOS
Swift version:             6.1
Building package at path:  $PWD
https://github.com/EvgenijLutz/LibPNG.git
https://github.com/EvgenijLutz/LibPNG.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)
2026-09-20 21:58:09.178 xcodebuild[503:2876] Writing error result bundle to /var/folders/5k/5yc19ymj0jqd5v0zvgfqz0xw0000gn/T/ResultBundle_2026-20-09_21-58-0009.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)
2026-09-20 21:58:09.918 xcodebuild[513:2984] Writing error result bundle to /var/folders/5k/5yc19ymj0jqd5v0zvgfqz0xw0000gn/T/ResultBundle_2026-20-09_21-58-0009.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