Build Information
Failed to build Gtk, reference 4.16.0 (3cd5ce), with Swift 6.3 for watchOS using Xcode 26.4 on 15 Apr 2026 21:26:17 UTC.
Build Command
No build command. This typically means the build failed at an early stage where we determine the build command.Build Log
========================================
RunAll
========================================
Builder version: 4.70.0
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/rhx/swiftgtk.git
Reference: 4.16.0
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/rhx/swiftgtk
* tag 4.16.0 -> FETCH_HEAD
HEAD is now at 3cd5ce0 Update for glib-2.82 and gtk-4.16
Cloned https://github.com/rhx/swiftgtk.git
Revision (git rev-parse @):
3cd5ce0c3a7c04375d8a52ba0d34d6da29b07164
SUCCESS checkout https://github.com/rhx/swiftgtk.git at 4.16.0
========================================
Build
========================================
Selected platform: watchOS
Swift version: 6.3
Building package at path: $PWD
https://github.com/rhx/swiftgtk.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
Fetching from https://github.com/rhx/gir2swift.git
Fetching from https://github.com/rhx/SwiftGraphene.git
Fetching from https://github.com/rhx/SwiftAtk.git
Fetching from https://github.com/rhx/SwiftGsk.git
Fetching from https://github.com/rhx/SwiftLibXML.git
Fetching from https://github.com/rhx/SwiftGObject.git
Fetching from https://github.com/rhx/SwiftGdk.git
Fetching from https://github.com/rhx/SwiftGLib.git
Fetching from https://github.com/rhx/SwiftGdkPixbuf.git
Fetching from https://github.com/rhx/SwiftPangoCairo.git
Fetching from https://github.com/rhx/SwiftGIO.git
Fetching from https://github.com/rhx/SwiftGModule.git
Fetching from https://github.com/rhx/SwiftCairo.git
Fetching from https://github.com/rhx/SwiftPango.git
Fetching from https://github.com/rhx/SwiftHarfBuzz.git
Fetching from https://github.com/jpsim/Yams.git
Fetching from https://github.com/apple/swift-argument-parser
Fetching from https://github.com/apple/swift-docc-plugin
Fetching from https://github.com/swiftlang/swift-docc-symbolkit
Creating working copy of package ‘SwiftGIO’
Checking out main (9a2ee26) of package ‘SwiftGIO’
Creating working copy of package ‘gir2swift’
Checking out main (e2b894e) of package ‘gir2swift’
Creating working copy of package ‘SwiftGraphene’
Checking out main (b39a5e3) of package ‘SwiftGraphene’
Creating working copy of package ‘SwiftGdk’
Checking out gtk4 (54474e9) of package ‘SwiftGdk’
Creating working copy of package ‘swift-argument-parser’
Checking out 1.7.1 of package ‘swift-argument-parser’
Creating working copy of package ‘swift-docc-symbolkit’
Checking out 1.0.0 of package ‘swift-docc-symbolkit’
Creating working copy of package ‘swift-docc-plugin’
Checking out 1.4.6 of package ‘swift-docc-plugin’
Creating working copy of package ‘SwiftHarfBuzz’
Checking out main (788b7a6) of package ‘SwiftHarfBuzz’
Creating working copy of package ‘SwiftGLib’
Checking out main (10e8466) of package ‘SwiftGLib’
Creating working copy of package ‘Yams’
Checking out 4.0.6 of package ‘Yams’
Creating working copy of package ‘SwiftLibXML’
Checking out main (35dea8f) of package ‘SwiftLibXML’
Creating working copy of package ‘SwiftGObject’
Checking out main (a959fc9) of package ‘SwiftGObject’
Creating working copy of package ‘SwiftGModule’
Checking out main (eecf947) of package ‘SwiftGModule’
Creating working copy of package ‘SwiftPango’
Checking out main (1670dc5) of package ‘SwiftPango’
Creating working copy of package ‘SwiftPangoCairo’
Checking out main (0318374) of package ‘SwiftPangoCairo’
Creating working copy of package ‘SwiftGsk’
Checking out main (bd3417c) of package ‘SwiftGsk’
Creating working copy of package ‘SwiftGdkPixbuf’
Checking out main (a0fee7d) of package ‘SwiftGdkPixbuf’
Creating working copy of package ‘SwiftAtk’
Checking out main (acaaa7f) of package ‘SwiftAtk’
Creating working copy of package ‘SwiftCairo’
Checking out main (87cd2aa) of package ‘SwiftCairo’
DecodingError.dataCorrupted: Data was corrupted. Debug description: The given data was not valid JSON.. Underlying error: Error Domain=NSCocoaErrorDomain Code=3840 "Unexpected end of file" UserInfo={NSDebugDescription=Unexpected end of file}Resolve Package Graph
DecodingError.dataCorrupted: Data was corrupted. Debug description: The given data was not valid JSON.. Underlying error: Error Domain=NSCocoaErrorDomain Code=3840 "Unexpected end of file" UserInfo={NSDebugDescription=Unexpected end of file}
Resolved source packages:
spi-builder-workspace: (null)
2026-04-15 17:26:09.695 xcodebuild[525:3020] Writing error result bundle to /var/folders/xq/y_g06wb113726d38xsyx71_h0000gn/T/ResultBundle_2026-15-04_17-26-0009.xcresult
xcodebuild: error: Could not resolve package dependencies:
DecodingError.dataCorrupted: Data was corrupted. Debug description: The given data was not valid JSON.. Underlying error: Error Domain=NSCocoaErrorDomain Code=3840 "Unexpected end of file" UserInfo={NSDebugDescription=Unexpected end of file}
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
DecodingError.dataCorrupted: Data was corrupted. Debug description: The given data was not valid JSON.. Underlying error: Error Domain=NSCocoaErrorDomain Code=3840 "Unexpected end of file" UserInfo={NSDebugDescription=Unexpected end of file}
Resolved source packages:
spi-builder-workspace: (null)
2026-04-15 17:26:17.423 xcodebuild[1342:7314] Writing error result bundle to /var/folders/xq/y_g06wb113726d38xsyx71_h0000gn/T/ResultBundle_2026-15-04_17-26-0017.xcresult
xcodebuild: error: Could not resolve package dependencies:
DecodingError.dataCorrupted: Data was corrupted. Debug description: The given data was not valid JSON.. Underlying error: Error Domain=NSCocoaErrorDomain Code=3840 "Unexpected end of file" UserInfo={NSDebugDescription=Unexpected end of file}
BUILD FAILURE 6.3 watchOS