Swift Package Index

Build Information

Failed to build Twinkle, reference main (673cc0), with Swift 6.0 for macOS (SPM) on 21 Jan 2026 13:19:37 UTC.

Build Command

env DEVELOPER_DIR=/Applications/Xcode-16.2.0.app xcrun swift build --arch arm64

Build Log

========================================
RunAll
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Builder version: 4.68.0
Interrupt handler set up.
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Checkout
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Clone URL: https://github.com/piemonte/Twinkle.git
Reference: main
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/piemonte/Twinkle
 * branch            main       -> FETCH_HEAD
 * [new branch]      main       -> origin/main
HEAD is now at 673cc05 update README
Cloned https://github.com/piemonte/Twinkle.git
Revision (git rev-parse @):
673cc05c01307b049f011f18e87b9ca06abf2b80
SUCCESS checkout https://github.com/piemonte/Twinkle.git at main
========================================
Build
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Selected platform:         macosSpm
Swift version:             6.0
Building package at path:  $PWD
https://github.com/piemonte/Twinkle.git
Running build ...
env DEVELOPER_DIR=/Applications/Xcode-16.2.0.app xcrun swift build --arch arm64
Building for debugging...
[0/3] Write sources
[1/3] Copying TwinkleImage.png
[2/3] Write swift-version-5BDAB9E9C0126B9D.txt
[4/6] Compiling Twinkle resource_bundle_accessor.swift
<unknown>:0: error: upcoming feature 'StrictConcurrency' is already enabled as of Swift version 6
/Users/admin/builder/spi-builder-workspace/Sources/Twinkle.swift:28:8: error: no such module 'UIKit'
 26 | //  SOFTWARE.
 27 |
 28 | import UIKit
    |        `- error: no such module 'UIKit'
 29 | import Foundation
 30 | import CoreGraphics
error: emit-module command failed with exit code 1 (use -v to see invocation)
[5/6] Emitting module Twinkle
<unknown>:0: error: upcoming feature 'StrictConcurrency' is already enabled as of Swift version 6
/Users/admin/builder/spi-builder-workspace/Sources/Twinkle.swift:28:8: error: no such module 'UIKit'
 26 | //  SOFTWARE.
 27 |
 28 | import UIKit
    |        `- error: no such module 'UIKit'
 29 | import Foundation
 30 | import CoreGraphics
[6/6] Compiling Twinkle Twinkle.swift
<unknown>:0: error: upcoming feature 'StrictConcurrency' is already enabled as of Swift version 6
/Users/admin/builder/spi-builder-workspace/Sources/Twinkle.swift:28:8: error: no such module 'UIKit'
 26 | //  SOFTWARE.
 27 |
 28 | import UIKit
    |        `- error: no such module 'UIKit'
 29 | import Foundation
 30 | import CoreGraphics
warning: 'spi-builder-workspace': /Users/admin/builder/spi-builder-workspace/Package.swift:5:15: warning: 'init(name:defaultLocalization:platforms:pkgConfig:providers:products:dependencies:targets:swiftLanguageVersions:cLanguageStandard:cxxLanguageStandard:)' is deprecated: replaced by 'init(name:defaultLocalization:platforms:pkgConfig:providers:products:dependencies:targets:swiftLanguageModes:cLanguageStandard:cxxLanguageStandard:)'
 3 | import PackageDescription
 4 |
 5 | let package = Package(
   |               |- warning: 'init(name:defaultLocalization:platforms:pkgConfig:providers:products:dependencies:targets:swiftLanguageVersions:cLanguageStandard:cxxLanguageStandard:)' is deprecated: replaced by 'init(name:defaultLocalization:platforms:pkgConfig:providers:products:dependencies:targets:swiftLanguageModes:cLanguageStandard:cxxLanguageStandard:)'
   |               `- note: use 'init(name:defaultLocalization:platforms:pkgConfig:providers:products:dependencies:targets:swiftLanguageModes:cLanguageStandard:cxxLanguageStandard:)' instead
 6 |     name: "Twinkle",
 7 |     platforms: [
BUILD FAILURE 6.0 macosSpm