Swift Package Index

Build Information

Failed to build BitcoinKernel, reference 0.1.1 (fd06af), with Swift 6.1 for iOS using Xcode 16.3 on 18 Jul 2026 03:21:51 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: undefined version: run 'make version' to update
Interrupt handler set up.
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Checkout
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Clone URL: https://github.com/21-DOT-DEV/swift-bitcoinkernel.git
Reference: 0.1.1
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/21-DOT-DEV/swift-bitcoinkernel
 * tag               0.1.1      -> FETCH_HEAD
HEAD is now at fd06af6 Create .spi.yml (#33)
Cloned https://github.com/21-DOT-DEV/swift-bitcoinkernel.git
Revision (git rev-parse @):
fd06af6bc9776dbac27ff8fa9b3a009546c609a4
SPI manifest file found: $PWD/.spi.yml
SUCCESS checkout https://github.com/21-DOT-DEV/swift-bitcoinkernel.git at 0.1.1
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Build
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Selected platform:         iOS
Swift version:             6.1
Building package at path:  $PWD
https://github.com/21-DOT-DEV/swift-bitcoinkernel.git
https://github.com/21-DOT-DEV/swift-bitcoinkernel.git
error: 'spi-builder-workspace': package 'spi-builder-workspace' is using Swift tools version 6.3.0 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 6.3.0 but the installed version is 6.1.0
Resolved source packages:
  spi-builder-workspace: (null)
2026-07-17 20:21:50.074 xcodebuild[505:2886] Writing error result bundle to /var/folders/5k/5yc19ymj0jqd5v0zvgfqz0xw0000gn/T/ResultBundle_2026-17-07_20-21-0050.xcresult
xcodebuild: error: Could not resolve package dependencies:
  package 'spi-builder-workspace' is using Swift tools version 6.3.0 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 6.3.0 but the installed version is 6.1.0
Resolved source packages:
  spi-builder-workspace: (null)
2026-07-17 20:21:51.126 xcodebuild[533:3070] Writing error result bundle to /var/folders/5k/5yc19ymj0jqd5v0zvgfqz0xw0000gn/T/ResultBundle_2026-17-07_20-21-0051.xcresult
xcodebuild: error: Could not resolve package dependencies:
  package 'spi-builder-workspace' is using Swift tools version 6.3.0 but the installed version is 6.1.0
BUILD FAILURE 6.1 iOS