Build Information
Failed to build swift-homomorphic-encryption, reference main (76fdde), with Swift 6.1 for watchOS using Xcode 16.3 on 14 Oct 2026 05:42:48 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: 5.1.2
Interrupt handler set up.
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Checkout
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Clone URL: https://github.com/apple/swift-homomorphic-encryption.git
Reference: main
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/apple/swift-homomorphic-encryption
* branch main -> FETCH_HEAD
* [new branch] main -> origin/main
HEAD is now at 76fddec Fix accumulator overflow in modular matrix multiplication (#336)
Submodule path 'swift-homomorphic-encryption-protobuf': checked out 'f35fa8fa2314a16b9ba166b96db7b1340767ac04'
Submodule 'swift-homomorphic-encryption-protobuf' (https://github.com/apple/swift-homomorphic-encryption-protobuf) registered for path 'swift-homomorphic-encryption-protobuf'
Cloning into '/Users/admin/builder/spi-builder-workspace/swift-homomorphic-encryption-protobuf'...
Cloned https://github.com/apple/swift-homomorphic-encryption.git
Revision (git rev-parse @):
76fddecbfb0ccfdf4883028e81fcfda00877605e
SPI manifest file found: $PWD/.spi.yml
SUCCESS checkout https://github.com/apple/swift-homomorphic-encryption.git at main
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Build
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Selected platform: watchOS
Swift version: 6.1
Building package at path: $PWD
https://github.com/apple/swift-homomorphic-encryption.git
https://github.com/apple/swift-homomorphic-encryption.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)
2026-10-13 22:42:47.869 xcodebuild[514:2921] Writing error result bundle to /var/folders/5k/5yc19ymj0jqd5v0zvgfqz0xw0000gn/T/ResultBundle_2026-13-10_22-42-0047.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)
2026-10-13 22:42:48.637 xcodebuild[525:3030] Writing error result bundle to /var/folders/5k/5yc19ymj0jqd5v0zvgfqz0xw0000gn/T/ResultBundle_2026-13-10_22-42-0048.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 watchOS