Swift Package Index

Build Information

Failed to build CZlib, reference 0.1.2 (a781e6), with Swift 6.3 for visionOS using Xcode 26.4 on 11 Apr 2026 20:21:34 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/Kitura/CZlib.git
Reference: 0.1.2
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/Kitura/CZlib
 * tag               0.1.2      -> FETCH_HEAD
HEAD is now at a781e6e Add Swift 4 support
Cloned https://github.com/Kitura/CZlib.git
Revision (git rev-parse @):
a781e6ef055fb8f0d608fe30a28e6a0f62ae498b
SUCCESS checkout https://github.com/Kitura/CZlib.git at 0.1.2
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Build
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Selected platform:         visionOS
Swift version:             6.3
Building package at path:  $PWD
https://github.com/Kitura/CZlib.git
Command line invocation:
    /Applications/Xcode-26.4.0.app/Contents/Developer/usr/bin/xcodebuild -IDEClonedSourcePackagesDirPathOverride=/Users/admin/builder/spi-builder-workspace/.dependencies -resolvePackageDependencies
Resolve Package Graph
the Swift tools version specification is missing a label; consider inserting 'swift-tools-version:' between the comment marker and the version specifierthe Swift tools version specification is missing a label; consider inserting 'swift-tools-version:' between the comment marker and the version specifier
Resolved source packages:
  spi-builder-workspace: (null)
2026-04-11 16:21:33.091 xcodebuild[528:3077] Writing error result bundle to /var/folders/xq/y_g06wb113726d38xsyx71_h0000gn/T/ResultBundle_2026-11-04_16-21-0033.xcresult
xcodebuild: error: Could not resolve package dependencies:
  the Swift tools version specification is missing a label; consider inserting 'swift-tools-version:' between the comment marker and the version specifier
  the Swift tools version specification is missing a label; consider inserting 'swift-tools-version:' between the comment marker and the version specifier
Command line invocation:
    /Applications/Xcode-26.4.0.app/Contents/Developer/usr/bin/xcodebuild -IDEClonedSourcePackagesDirPathOverride=/Users/admin/builder/spi-builder-workspace/.dependencies -resolvePackageDependencies
Resolve Package Graph
the Swift tools version specification is missing a label; consider inserting 'swift-tools-version:' between the comment marker and the version specifierthe Swift tools version specification is missing a label; consider inserting 'swift-tools-version:' between the comment marker and the version specifier
Resolved source packages:
  spi-builder-workspace: (null)
2026-04-11 16:21:34.924 xcodebuild[579:3467] Writing error result bundle to /var/folders/xq/y_g06wb113726d38xsyx71_h0000gn/T/ResultBundle_2026-11-04_16-21-0034.xcresult
xcodebuild: error: Could not resolve package dependencies:
  the Swift tools version specification is missing a label; consider inserting 'swift-tools-version:' between the comment marker and the version specifier
  the Swift tools version specification is missing a label; consider inserting 'swift-tools-version:' between the comment marker and the version specifier
BUILD FAILURE 6.3 visionOS