Swift Package Index

Build Information

Failed to build SpeziFoundation, reference 2.7.6 (14b71e), with Swift 6.0 for watchOS using Xcode 16.2 on 20 Apr 2026 03:27:06 UTC.

Build Command

No build command. This typically means the build failed at an early stage where we determine the build command.

Build 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/StanfordSpezi/SpeziFoundation.git
Reference: 2.7.6
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/StanfordSpezi/SpeziFoundation
 * tag               2.7.6      -> FETCH_HEAD
HEAD is now at 14b71ec LocalizationsDictionary literal init (#65)
Cloned https://github.com/StanfordSpezi/SpeziFoundation.git
Revision (git rev-parse @):
14b71ec24d42463c273203556c3cbfc03ce04023
SPI manifest file found: $PWD/.spi.yml
SUCCESS checkout https://github.com/StanfordSpezi/SpeziFoundation.git at 2.7.6
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Build
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Selected platform:         watchOS
Swift version:             6.0
Building package at path:  $PWD
https://github.com/StanfordSpezi/SpeziFoundation.git
Command line invocation:
    /Applications/Xcode-16.2.0.app/Contents/Developer/usr/bin/xcodebuild -IDEClonedSourcePackagesDirPathOverride=/Users/admin/builder/spi-builder-workspace/.dependencies -resolvePackageDependencies
User defaults from command line:
    IDEClonedSourcePackagesDirPathOverride = /Users/admin/builder/spi-builder-workspace/.dependencies
    IDEPackageSupportUseBuiltinSCM = YES
Resolve Package Graph
Fetching from https://github.com/StanfordBDHG/zstd.git
Fetching from https://github.com/apple/swift-log
Fetching from https://github.com/StanfordBDHG/ThreadLocal.git
Fetching from https://github.com/StanfordBDHG/XCTRuntimeAssertions.git
Fetching from https://github.com/apple/swift-atomics.git
Fetching from https://github.com/apple/swift-algorithms.git
Fetching from https://github.com/apple/swift-numerics.git
failed to retrieve search paths with pkg-config; maybe pkg-config is not installedcouldn't find pc file for zlibResolve Package Graph
Updating from https://github.com/apple/swift-log
Updating from https://github.com/StanfordBDHG/ThreadLocal.git
Updating from https://github.com/StanfordBDHG/zstd.git
Updating from https://github.com/apple/swift-atomics.git
Updating from https://github.com/apple/swift-algorithms.git
Updating from https://github.com/StanfordBDHG/XCTRuntimeAssertions.git
Updating from https://github.com/apple/swift-numerics.git
couldn't find pc file for zlibResolve Package Graph
Updating from https://github.com/apple/swift-algorithms.git
Updating from https://github.com/apple/swift-atomics.git
Updating from https://github.com/StanfordBDHG/zstd.git
Updating from https://github.com/StanfordBDHG/ThreadLocal.git
Updating from https://github.com/apple/swift-log
Updating from https://github.com/StanfordBDHG/XCTRuntimeAssertions.git
Updating from https://github.com/apple/swift-numerics.git
couldn't find pc file for zlib
Resolved source packages:
  spi-builder-workspace: (null)
2026-04-19 20:27:02.879 xcodebuild[477:2738] Writing error result bundle to /var/folders/5k/5yc19ymj0jqd5v0zvgfqz0xw0000gn/T/ResultBundle_2026-19-04_20-27-0002.xcresult
xcodebuild: error: Could not resolve package dependencies:
  Failed to resolve dependencies Dependencies could not be resolved because 'threadlocal' contains incompatible tools version (6.2.0) and root depends on 'threadlocal' 0.1.0..<1.0.0.
Command line invocation:
    /Applications/Xcode-16.2.0.app/Contents/Developer/usr/bin/xcodebuild -IDEClonedSourcePackagesDirPathOverride=/Users/admin/builder/spi-builder-workspace/.dependencies -resolvePackageDependencies
User defaults from command line:
    IDEClonedSourcePackagesDirPathOverride = /Users/admin/builder/spi-builder-workspace/.dependencies
    IDEPackageSupportUseBuiltinSCM = YES
Resolve Package Graph
Updating from https://github.com/StanfordBDHG/ThreadLocal.git
Updating from https://github.com/StanfordBDHG/XCTRuntimeAssertions.git
Updating from https://github.com/StanfordBDHG/zstd.git
Updating from https://github.com/apple/swift-atomics.git
Updating from https://github.com/apple/swift-algorithms.git
Updating from https://github.com/apple/swift-log
Updating from https://github.com/apple/swift-numerics.git
failed to retrieve search paths with pkg-config; maybe pkg-config is not installedcouldn't find pc file for zlib
Resolved source packages:
  spi-builder-workspace: (null)
2026-04-19 20:27:05.830 xcodebuild[783:4178] Writing error result bundle to /var/folders/5k/5yc19ymj0jqd5v0zvgfqz0xw0000gn/T/ResultBundle_2026-19-04_20-27-0005.xcresult
xcodebuild: error: Could not resolve package dependencies:
  Failed to resolve dependencies Dependencies could not be resolved because 'threadlocal' contains incompatible tools version (6.2.0) and root depends on 'threadlocal' 0.1.0..<1.0.0.
BUILD FAILURE 6.0 watchOS