Build Information
Failed to build swift-tui, reference 0.16.0 (9ef8fe), with Swift 6.1 for macOS (SPM) on 10 Oct 2026 12:38:02 UTC.
Build Command
env DEVELOPER_DIR=/Applications/Xcode-16.3.0.app xcrun swift build --arch arm64Build Log
========================================
RunAll
========================================
Builder version: 5.1.1
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/SwiftTUI/swift-tui.git
Reference: 0.16.0
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/SwiftTUI/swift-tui
* tag 0.16.0 -> FETCH_HEAD
HEAD is now at 9ef8fee STUI-908 Run the full collection transport journey in the core lane
Cloned https://github.com/SwiftTUI/swift-tui.git
Revision (git rev-parse @):
9ef8feec9fee6fc199767a52aa1c913976bdb2c9
SPI manifest file found: $PWD/.spi.yml
SUCCESS checkout https://github.com/SwiftTUI/swift-tui.git at 0.16.0
========================================
Build
========================================
Selected platform: macosSpm
Swift version: 6.1
Building package at path: $PWD
https://github.com/SwiftTUI/swift-tui.git
https://github.com/SwiftTUI/swift-tui.git
error: 'spi-builder-workspace': package 'spi-builder-workspace' is using Swift tools version 6.4.0 but the installed version is 6.1.0
error: fatalError
Running build ...
env DEVELOPER_DIR=/Applications/Xcode-16.3.0.app xcrun swift build --arch arm64 -Xswiftc -Xfrontend -Xswiftc -stats-output-dir -Xswiftc -Xfrontend -Xswiftc .stats -Xswiftc -strict-concurrency=complete -Xswiftc -enable-upcoming-feature -Xswiftc StrictConcurrency -Xswiftc -enable-upcoming-feature -Xswiftc DisableOutwardActorInference -Xswiftc -enable-upcoming-feature -Xswiftc GlobalActorIsolatedTypesUsability -Xswiftc -enable-upcoming-feature -Xswiftc InferSendableFromCaptures
error: 'spi-builder-workspace': package 'spi-builder-workspace' is using Swift tools version 6.4.0 but the installed version is 6.1.0
error: 'spi-builder-workspace': package 'spi-builder-workspace' is using Swift tools version 6.4.0 but the installed version is 6.1.0
Running build ...
env DEVELOPER_DIR=/Applications/Xcode-16.3.0.app xcrun swift build --arch arm64
error: 'spi-builder-workspace': package 'spi-builder-workspace' is using Swift tools version 6.4.0 but the installed version is 6.1.0
error: 'spi-builder-workspace': package 'spi-builder-workspace' is using Swift tools version 6.4.0 but the installed version is 6.1.0
BUILD FAILURE 6.1 macosSpm