Swift Package Index

Build Information

Failed to build CXXAudioUtilities, reference main (53e8e6), with Swift 6.4 for macOS (SPM) on 21 Sep 2026 20:39:57 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/sbooth/CXXAudioUtilities.git
Reference: main
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/sbooth/CXXAudioUtilities
 * branch            main       -> FETCH_HEAD
 * [new branch]      main       -> origin/main
HEAD is now at 53e8e6a Bump actions/checkout from 6 to 7 (#86)
Cloned https://github.com/sbooth/CXXAudioUtilities.git
Revision (git rev-parse @):
53e8e6afb1e238829594b5d2140eacef72da4efc
SUCCESS checkout https://github.com/sbooth/CXXAudioUtilities.git at main
========================================
Build
========================================
Selected platform:         macosSpm
Swift version:             6.4
Building package at path:  $PWD
https://github.com/sbooth/CXXAudioUtilities.git
Running build ...
env DEVELOPER_DIR=/Applications/Xcode-27.0.0-Release.Candidate.app xcrun swift build --arch arm64
Building for debugging...
[Planning deferred tasks]
error: Build input file cannot be found: '/Users/admin/builder/spi-builder-workspace/.build/out/Products/Debug/CXXAudioUtilities.o'. Did you forget to declare this file as an output of a script phase or custom build rule which produces it?
error: Libtool /Users/admin/builder/spi-builder-workspace/.build/out/Products/Debug/libCXXAudioUtilities.a normal failed with a nonzero exit code. Command line:     cd /Users/admin/builder/spi-builder-workspace
    /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/libtool -static -arch_only arm64 -D -syslibroot /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX27.0.sdk -L/Users/admin/builder/spi-builder-workspace/.build/out/Products/Debug -L/Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Platforms/MacOSX.platform/Developer/usr/lib -filelist /Users/admin/builder/spi-builder-workspace/.build/out/Intermediates.noindex/CXXAudioUtilities.build/Debug/CXXAudioUtilities-product-p.build/Objects-normal/arm64/CXXAudioUtilities.LinkFileList -no_warning_for_no_symbols -dependency_info /Users/admin/builder/spi-builder-workspace/.build/out/Intermediates.noindex/CXXAudioUtilities.build/Debug/CXXAudioUtilities-product-p.build/Objects-normal/arm64/CXXAudioUtilities_libtool_dependency_info.dat -o /Users/admin/builder/spi-builder-workspace/.build/out/Products/Debug/libCXXAudioUtilities.a
error: Build failed
BUILD FAILURE 6.4 macosSpm