Swift Package Index

Build Information

Failed to build swift-rfc-4291, reference 0.2.0 (e209bd), with Swift 6.1 for visionOS using Xcode 16.3 on 23 Apr 2026 19:23:53 UTC.

Build Command

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

Build Log

========================================
RunAll
========================================
Builder version: 4.70.0
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/swift-ietf/swift-rfc-4291.git
Reference: 0.2.0
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/swift-ietf/swift-rfc-4291
 * tag               0.2.0      -> FETCH_HEAD
HEAD is now at e209bd0 Update dependencies to latest versions
Cloned https://github.com/swift-ietf/swift-rfc-4291.git
Revision (git rev-parse @):
e209bd09264801c91985aa2d6e7f7b7f5daf6cf6
SUCCESS checkout https://github.com/swift-ietf/swift-rfc-4291.git at 0.2.0
========================================
Build
========================================
Selected platform:         visionOS
Swift version:             6.1
Building package at path:  $PWD
https://github.com/swift-ietf/swift-rfc-4291.git
https://github.com/swift-ietf/swift-rfc-4291.git
error: 'spi-builder-workspace': package 'spi-builder-workspace' is using Swift tools version 6.2.0 but the installed version is 6.1.0
error: fatalError
Command line invocation:
    /Applications/Xcode-16.3.0.app/Contents/Developer/usr/bin/xcodebuild -IDEClonedSourcePackagesDirPathOverride=/Users/admin/builder/spi-builder-workspace/.dependencies -resolvePackageDependencies
Resolve Package Graph
package 'spi-builder-workspace' is using Swift tools version 6.2.0 but the installed version is 6.1.0
Resolved source packages:
  spi-builder-workspace: (null)
2026-04-23 12:23:52.356 xcodebuild[495:2891] Writing error result bundle to /var/folders/5k/5yc19ymj0jqd5v0zvgfqz0xw0000gn/T/ResultBundle_2026-23-04_12-23-0052.xcresult
xcodebuild: error: Could not resolve package dependencies:
  package 'spi-builder-workspace' is using Swift tools version 6.2.0 but the installed version is 6.1.0
Command line invocation:
    /Applications/Xcode-16.3.0.app/Contents/Developer/usr/bin/xcodebuild -IDEClonedSourcePackagesDirPathOverride=/Users/admin/builder/spi-builder-workspace/.dependencies -resolvePackageDependencies
Resolve Package Graph
package 'spi-builder-workspace' is using Swift tools version 6.2.0 but the installed version is 6.1.0
Resolved source packages:
  spi-builder-workspace: (null)
2026-04-23 12:23:53.052 xcodebuild[505:2977] Writing error result bundle to /var/folders/5k/5yc19ymj0jqd5v0zvgfqz0xw0000gn/T/ResultBundle_2026-23-04_12-23-0053.xcresult
xcodebuild: error: Could not resolve package dependencies:
  package 'spi-builder-workspace' is using Swift tools version 6.2.0 but the installed version is 6.1.0
BUILD FAILURE 6.1 visionOS