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Build Information

Failed to build HorizonDefaults with Swift 6.0 (beta) for macOS (SPM).

Build Command

env DEVELOPER_DIR=/Applications/Xcode-15.3.0.app xcrun --toolchain org.swift.600202405261a swift build --arch arm64 -Xswiftc -Xfrontend -Xswiftc -stats-output-dir -Xswiftc -Xfrontend -Xswiftc .stats -Xswiftc -strict-concurrency=complete

Build Log

========================================
RunAll
========================================
Builder version: 4.40.0
Interrupt handler set up.
========================================
Checkout
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Clone URL: https://github.com/Sam-Spencer/HorizonDefaults.git
Reference: master
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/Sam-Spencer/HorizonDefaults
 * branch            master     -> FETCH_HEAD
 * [new branch]      master     -> origin/master
HEAD is now at 508a431 Update HorizonDefaults.swift
Cloned https://github.com/Sam-Spencer/HorizonDefaults.git
Revision (git rev-parse @):
508a431ecfcbdaaa9f3b6aa2f3d0068c07f9eeb2
SUCCESS checkout https://github.com/Sam-Spencer/HorizonDefaults.git at master
========================================
Build
========================================
Selected platform:         macosSpm
Swift version:             6.0
Building package at path:  $workDir
https://github.com/Sam-Spencer/HorizonDefaults.git
Running build ...
env DEVELOPER_DIR=/Applications/Xcode-15.3.0.app xcrun --toolchain org.swift.600202405261a swift build --arch arm64 -Xswiftc -Xfrontend -Xswiftc -stats-output-dir -Xswiftc -Xfrontend -Xswiftc .stats -Xswiftc -strict-concurrency=complete
Building for debugging...
[0/2] Write sources
[1/2] Write swift-version-6F35C1178C84523A.txt
error: emit-module command failed with exit code 1 (use -v to see invocation)
[3/4] Emitting module HorizonDefaults
/Users/admin/builder/spi-builder-workspace/Sources/HorizonDefaults/HorizonDefaults.swift:6:8: error: no such module 'UIKit'
  4 | //
  5 |
  6 | import UIKit
    |        `- error: no such module 'UIKit'
  7 |
  8 | /// Synchronize User Defaults to iCloud automatically
[4/4] Compiling HorizonDefaults HorizonDefaults.swift
/Users/admin/builder/spi-builder-workspace/Sources/HorizonDefaults/HorizonDefaults.swift:6:8: error: no such module 'UIKit'
  4 | //
  5 |
  6 | import UIKit
    |        `- error: no such module 'UIKit'
  7 |
  8 | /// Synchronize User Defaults to iCloud automatically
BUILD FAILURE 6.0 macosSpm
This is a staging environment. For live and up-to-date package information, visit swiftpackageindex.com.