Swift Package IndexBuild Information
Failed to build swift-cross-ui, reference v0.1.0 (2f09b6), with Swift 6.3 for macOS (SPM) on 16 Apr 2026 04:18:14 UTC.
Build Command
env DEVELOPER_DIR=/Applications/Xcode-26.4.0.app xcrun swift build --arch arm64Build 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/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
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
[1/2962] Fetching termkit
Fetched https://github.com/migueldeicaza/TermKit from cache (1.28s)
Fetching https://github.com/apple/swift-collections.git
Fetching https://github.com/migueldeicaza/SwiftTerm.git
Fetching https://github.com/OpenCombine/OpenCombine.git
Fetching https://github.com/apple/swift-docc-plugin
Fetching https://github.com/PADL/LVGLSwift
Fetching https://github.com/apple/swift-syntax.git
Fetching https://github.com/lhoward/AsyncExtensions
[1/2277] Fetching swift-docc-plugin
[93/3167] Fetching swift-docc-plugin, asyncextensions
[165/3862] Fetching swift-docc-plugin, asyncextensions, lvglswift
[277/12146] Fetching swift-docc-plugin, asyncextensions, lvglswift, opencombine
[687/35683] Fetching swift-docc-plugin, asyncextensions, lvglswift, opencombine, swift-collections
[876/46085] Fetching swift-docc-plugin, asyncextensions, lvglswift, opencombine, swift-collections, swiftterm
[33223/121070] Fetching swift-docc-plugin, asyncextensions, lvglswift, opencombine, swift-collections, swiftterm, swift-syntax
Fetched https://github.com/lhoward/AsyncExtensions from cache (1.63s)
Fetched https://github.com/migueldeicaza/SwiftTerm.git from cache (1.63s)
Fetched https://github.com/PADL/LVGLSwift from cache (1.63s)
Fetched https://github.com/OpenCombine/OpenCombine.git from cache (1.63s)
Fetched https://github.com/apple/swift-docc-plugin from cache (1.63s)
[26138/98522] Fetching swift-collections, swift-syntax
Fetching https://github.com/CoreOffice/XMLCoder
Fetching https://github.com/migueldeicaza/TextBufferKit.git
Fetching https://github.com/Longhanks/qlift
Fetched https://github.com/apple/swift-collections.git from cache (1.99s)
[21746/74985] Fetching swift-syntax
[35994/75225] Fetching swift-syntax, textbufferkit
[36792/85317] Fetching swift-syntax, textbufferkit, xmlcoder
[44529/87876] Fetching swift-syntax, textbufferkit, xmlcoder, qlift
Fetched https://github.com/migueldeicaza/TextBufferKit.git from cache (0.76s)
[51735/87636] Fetching swift-syntax, xmlcoder, qlift
Fetched https://github.com/Longhanks/qlift from cache (0.98s)
[70080/85077] Fetching swift-syntax, xmlcoder
Fetched https://github.com/CoreOffice/XMLCoder from cache (1.11s)
[67487/74985] Fetching swift-syntax
Fetched https://github.com/apple/swift-syntax.git from cache (4.80s)
Computing version for https://github.com/migueldeicaza/SwiftTerm.git
Computed https://github.com/migueldeicaza/SwiftTerm.git at 1.2.4 (5.58s)
Computing version for https://github.com/migueldeicaza/TextBufferKit.git
Computed https://github.com/migueldeicaza/TextBufferKit.git at 0.3.0 (0.69s)
Computing version for https://github.com/OpenCombine/OpenCombine.git
Computed https://github.com/OpenCombine/OpenCombine.git at 0.14.0 (0.71s)
Computing version for https://github.com/apple/swift-docc-plugin
Computed https://github.com/apple/swift-docc-plugin at 1.0.0 (0.68s)
Computing version for https://github.com/apple/swift-syntax.git
Computed https://github.com/apple/swift-syntax.git at 508.0.1 (0.76s)
Computing version for https://github.com/CoreOffice/XMLCoder
Computed https://github.com/CoreOffice/XMLCoder at 0.17.1 (0.73s)
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/CoreOffice/XMLCoder
Working copy of https://github.com/CoreOffice/XMLCoder resolved at 0.17.1
Creating working copy for https://github.com/migueldeicaza/TermKit
Working copy of https://github.com/migueldeicaza/TermKit resolved at 3bce85d1bafbbb0336b3b7b7e905c35754cb9adf
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/migueldeicaza/SwiftTerm.git
Working copy of https://github.com/migueldeicaza/SwiftTerm.git resolved at 1.2.4
Creating working copy for https://github.com/apple/swift-docc-plugin
Working copy of https://github.com/apple/swift-docc-plugin resolved at 1.0.0
Creating working copy for https://github.com/migueldeicaza/TextBufferKit.git
Working copy of https://github.com/migueldeicaza/TextBufferKit.git resolved at 0.3.0
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ResolveProductDependencies
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Resolving dependencies ...
Fetching https://github.com/wabiverse/swift-cross-ui.git
[1/13642] Fetching swift-cross-ui
Fetched https://github.com/wabiverse/swift-cross-ui.git from cache (1.47s)
warning: 'swift-cross-ui': 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 from cache
Fetched https://github.com/migueldeicaza/TermKit from cache (0.46s)
Fetching https://github.com/OpenCombine/OpenCombine.git from cache
Fetching https://github.com/migueldeicaza/SwiftTerm.git from cache
Fetching https://github.com/migueldeicaza/TextBufferKit.git from cache
Fetched https://github.com/OpenCombine/OpenCombine.git from cache (0.52s)
Fetched https://github.com/migueldeicaza/TextBufferKit.git from cache (0.52s)
Fetched https://github.com/migueldeicaza/SwiftTerm.git from cache (0.52s)
Computing version for https://github.com/migueldeicaza/TextBufferKit.git
Computed https://github.com/migueldeicaza/TextBufferKit.git at 0.3.0 (0.59s)
Computing version for https://github.com/OpenCombine/OpenCombine.git
Computed https://github.com/OpenCombine/OpenCombine.git at 0.14.0 (0.06s)
Computing version for https://github.com/migueldeicaza/SwiftTerm.git
Computed https://github.com/migueldeicaza/SwiftTerm.git at 1.13.0 (0.85s)
Fetching https://github.com/apple/swift-argument-parser
[1/17523] Fetching swift-argument-parser
Fetched https://github.com/apple/swift-argument-parser from cache (1.68s)
Computing version for https://github.com/apple/swift-argument-parser
Computed https://github.com/apple/swift-argument-parser at 1.7.1 (2.31s)
Creating working copy for https://github.com/migueldeicaza/SwiftTerm.git
Working copy of https://github.com/migueldeicaza/SwiftTerm.git resolved at 1.13.0
Creating working copy for https://github.com/apple/swift-argument-parser
Working copy of https://github.com/apple/swift-argument-parser resolved at 1.7.1
Creating working copy for https://github.com/migueldeicaza/TermKit
Working copy of https://github.com/migueldeicaza/TermKit resolved at 3bce85d1bafbbb0336b3b7b7e905c35754cb9adf
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/wabiverse/swift-cross-ui.git
Working copy of https://github.com/wabiverse/swift-cross-ui.git resolved at v0.1.0 (2f09b62)
Creating working copy for https://github.com/migueldeicaza/TextBufferKit.git
Working copy of https://github.com/migueldeicaza/TextBufferKit.git resolved at 0.3.0
warning: 'swift-cross-ui': 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
error: 'swift-cross-ui': unknown dependency 'GtkBackend' in target 'CounterExample'; valid dependencies are: 'XMLCoder' (from 'https://github.com/CoreOffice/XMLCoder'), 'swift-syntax' (from 'https://github.com/apple/swift-syntax.git'), 'swift-docc-plugin' (from 'https://github.com/apple/swift-docc-plugin'), 'TermKit' (from 'https://github.com/migueldeicaza/TermKit')
error: 'swift-cross-ui': unknown dependency 'GtkBackend' in target 'RandomNumberGeneratorExample'; valid dependencies are: 'XMLCoder' (from 'https://github.com/CoreOffice/XMLCoder'), 'swift-syntax' (from 'https://github.com/apple/swift-syntax.git'), 'swift-docc-plugin' (from 'https://github.com/apple/swift-docc-plugin'), 'TermKit' (from 'https://github.com/migueldeicaza/TermKit')
error: 'swift-cross-ui': unknown dependency 'GtkBackend' in target 'WindowPropertiesExample'; valid dependencies are: 'XMLCoder' (from 'https://github.com/CoreOffice/XMLCoder'), 'swift-syntax' (from 'https://github.com/apple/swift-syntax.git'), 'swift-docc-plugin' (from 'https://github.com/apple/swift-docc-plugin'), 'TermKit' (from 'https://github.com/migueldeicaza/TermKit')
error: 'swift-cross-ui': unknown dependency 'GtkBackend' in target 'GreetingGeneratorExample'; valid dependencies are: 'XMLCoder' (from 'https://github.com/CoreOffice/XMLCoder'), 'swift-syntax' (from 'https://github.com/apple/swift-syntax.git'), 'swift-docc-plugin' (from 'https://github.com/apple/swift-docc-plugin'), 'TermKit' (from 'https://github.com/migueldeicaza/TermKit')
error: 'swift-cross-ui': unknown dependency 'GtkBackend' in target 'FileViewerExample'; valid dependencies are: 'XMLCoder' (from 'https://github.com/CoreOffice/XMLCoder'), 'swift-syntax' (from 'https://github.com/apple/swift-syntax.git'), 'swift-docc-plugin' (from 'https://github.com/apple/swift-docc-plugin'), 'TermKit' (from 'https://github.com/migueldeicaza/TermKit')
error: 'swift-cross-ui': unknown dependency 'CGtk' in target 'FileViewerExample'; valid dependencies are: 'XMLCoder' (from 'https://github.com/CoreOffice/XMLCoder'), 'swift-syntax' (from 'https://github.com/apple/swift-syntax.git'), 'swift-docc-plugin' (from 'https://github.com/apple/swift-docc-plugin'), 'TermKit' (from 'https://github.com/migueldeicaza/TermKit')
error: 'swift-cross-ui': unknown dependency 'GtkBackend' in target 'NavigationExample'; valid dependencies are: 'XMLCoder' (from 'https://github.com/CoreOffice/XMLCoder'), 'swift-syntax' (from 'https://github.com/apple/swift-syntax.git'), 'swift-docc-plugin' (from 'https://github.com/apple/swift-docc-plugin'), 'TermKit' (from 'https://github.com/migueldeicaza/TermKit')
error: 'swift-cross-ui': unknown dependency 'GtkBackend' in target 'SplitExample'; valid dependencies are: 'XMLCoder' (from 'https://github.com/CoreOffice/XMLCoder'), 'swift-syntax' (from 'https://github.com/apple/swift-syntax.git'), 'swift-docc-plugin' (from 'https://github.com/apple/swift-docc-plugin'), 'TermKit' (from 'https://github.com/migueldeicaza/TermKit')
error: 'swift-cross-ui': unknown dependency 'GtkBackend' in target 'SpreadsheetExample'; valid dependencies are: 'XMLCoder' (from 'https://github.com/CoreOffice/XMLCoder'), 'swift-syntax' (from 'https://github.com/apple/swift-syntax.git'), 'swift-docc-plugin' (from 'https://github.com/apple/swift-docc-plugin'), 'TermKit' (from 'https://github.com/migueldeicaza/TermKit')
error: fatalError
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Build
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Selected platform: macosSpm
Swift version: 6.3
Building package at path: $PWD
https://github.com/wabiverse/swift-cross-ui.git
Running build ...
env DEVELOPER_DIR=/Applications/Xcode-26.4.0.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
error: 'spi-builder-workspace': product 'GtkBackend' required by package 'spi-builder-workspace' target 'WindowPropertiesExample' not found. Did you mean 'AppKitBackend'?
BUILD FAILURE 6.3 macosSpm