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Build Information

Failed to build swift-cross-ui, reference v0.1.0 (2f09b6), with Swift 6.4 for macOS (SPM) on 22 Sep 2026 06:38:15 UTC.

Build Command

env DEVELOPER_DIR=/Applications/Xcode-27.0.0-Release.Candidate.app xcrun swift build --arch arm64

Build Log

========================================
RunAll
========================================
Builder version: 5.1.0
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/wabiverse/swift-cross-ui.git
Reference: v0.1.0
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/wabiverse/swift-cross-ui
 * tag               v0.1.0     -> FETCH_HEAD
HEAD is now at 2f09b62 Remove accidental usage of if-expressions (GitHub Actions aren't using Swift 5.9)
Cloned https://github.com/wabiverse/swift-cross-ui.git
Revision (git rev-parse @):
2f09b62b487e720fdbad6c425a605ded457b1b19
SPI manifest file found: $PWD/.spi.yml
SUCCESS checkout https://github.com/wabiverse/swift-cross-ui.git at v0.1.0
========================================
Build
========================================
Selected platform:         macosSpm
Swift version:             6.4
Building package at path:  $PWD
https://github.com/wabiverse/swift-cross-ui.git
Running build ...
env DEVELOPER_DIR=/Applications/Xcode-27.0.0-Release.Candidate.app xcrun swift build --arch arm64
warning: 'spi-builder-workspace': Failed to get gtk version
/bin/bash: gtk4-launch: command not found
/bin/bash: qmake: command not found
/bin/bash: sdl2-config: command not found
Fetching https://github.com/migueldeicaza/TermKit
[1/2979] Fetching termkit
Fetched https://github.com/migueldeicaza/TermKit (1.46s)
Fetching https://github.com/apple/swift-syntax.git
Fetching https://github.com/migueldeicaza/TextBufferKit.git
Fetching https://github.com/apple/swift-docc-plugin
Fetching https://github.com/OpenCombine/OpenCombine.git
Fetching https://github.com/CoreOffice/XMLCoder
Fetching https://github.com/migueldeicaza/SwiftTerm.git
[1/240] Fetching textbufferkit
[30/2585] Fetching textbufferkit, swift-docc-plugin
[31/12714] Fetching textbufferkit, swift-docc-plugin, xmlcoder
[213/20998] Fetching textbufferkit, swift-docc-plugin, xmlcoder, opencombine
Fetched https://github.com/apple/swift-docc-plugin (1.39s)
[18239/18653] Fetching textbufferkit, xmlcoder, opencombine
[18654/35300] Fetching textbufferkit, xmlcoder, opencombine, swiftterm
[18655/115302] Fetching textbufferkit, xmlcoder, opencombine, swiftterm, swift-syntax
Fetched https://github.com/apple/swift-syntax.git (4.82s)
Fetched https://github.com/migueldeicaza/TextBufferKit.git (4.82s)
Fetched https://github.com/migueldeicaza/SwiftTerm.git (4.82s)
Fetched https://github.com/OpenCombine/OpenCombine.git (4.82s)
Fetched https://github.com/CoreOffice/XMLCoder (4.82s)
Computing version for https://github.com/migueldeicaza/TextBufferKit.git
Computed https://github.com/migueldeicaza/TextBufferKit.git at 0.3.0 (5.52s)
Computing version for https://github.com/apple/swift-syntax.git
Computed https://github.com/apple/swift-syntax.git at 508.0.1 (0.75s)
Computing version for https://github.com/OpenCombine/OpenCombine.git
Computed https://github.com/OpenCombine/OpenCombine.git at 0.14.0 (0.73s)
Computing version for https://github.com/CoreOffice/XMLCoder
Computed https://github.com/CoreOffice/XMLCoder at 0.18.2 (0.68s)
Computing version for https://github.com/apple/swift-docc-plugin
Computed https://github.com/apple/swift-docc-plugin at 1.5.0 (0.67s)
Fetching https://github.com/swiftlang/swift-docc-symbolkit
[1/3828] Fetching swift-docc-symbolkit
Fetched https://github.com/swiftlang/swift-docc-symbolkit (1.42s)
Computing version for https://github.com/swiftlang/swift-docc-symbolkit
Computed https://github.com/swiftlang/swift-docc-symbolkit at 1.0.0 (2.14s)
Computing version for https://github.com/migueldeicaza/SwiftTerm.git
Computed https://github.com/migueldeicaza/SwiftTerm.git at 1.20.0 (2.28s)
Fetching https://github.com/apple/swift-argument-parser
[1/18918] Fetching swift-argument-parser
Fetched https://github.com/apple/swift-argument-parser (1.84s)
Computing version for https://github.com/apple/swift-argument-parser
Computed https://github.com/apple/swift-argument-parser at 1.8.2 (2.47s)
Creating working copy for https://github.com/migueldeicaza/SwiftTerm.git
Working copy of https://github.com/migueldeicaza/SwiftTerm.git resolved at 1.20.0
Creating working copy for https://github.com/CoreOffice/XMLCoder
Working copy of https://github.com/CoreOffice/XMLCoder resolved at 0.18.2
Creating working copy for https://github.com/migueldeicaza/TextBufferKit.git
Working copy of https://github.com/migueldeicaza/TextBufferKit.git resolved at 0.3.0
Creating working copy for https://github.com/apple/swift-argument-parser
Working copy of https://github.com/apple/swift-argument-parser resolved at 1.8.2
Creating working copy for https://github.com/apple/swift-docc-plugin
Working copy of https://github.com/apple/swift-docc-plugin resolved at 1.5.0
Creating working copy for https://github.com/apple/swift-syntax.git
Working copy of https://github.com/apple/swift-syntax.git resolved at 508.0.1
Creating working copy for https://github.com/OpenCombine/OpenCombine.git
Working copy of https://github.com/OpenCombine/OpenCombine.git resolved at 0.14.0
Creating working copy for https://github.com/swiftlang/swift-docc-symbolkit
Working copy of https://github.com/swiftlang/swift-docc-symbolkit resolved at 1.0.0
Creating working copy for https://github.com/migueldeicaza/TermKit
Working copy of https://github.com/migueldeicaza/TermKit resolved at 3bce85d1bafbbb0336b3b7b7e905c35754cb9adf
error: 'spi-builder-workspace': product 'GtkBackend' required by package 'spi-builder-workspace' target 'WindowPropertiesExample' not found. Did you mean 'AppKitBackend'?
BUILD FAILURE 6.4 macosSpm