Build Information
Failed to build Swan, reference main (e5edfe), with Swift 6.4 for iOS using Xcode 27.0 on 3 Oct 2026 09:57:19 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: 5.1.1
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/adobe/swan.git
Reference: main
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/adobe/swan
* branch main -> FETCH_HEAD
* [new branch] main -> origin/main
HEAD is now at e5edfeb Fix Dawn nightly CI build prerequisites (#134)
Cloned https://github.com/adobe/swan.git
Revision (git rev-parse @):
e5edfebfcf8f3e775c10b25242d322a059d5062b
SUCCESS checkout https://github.com/adobe/swan.git at main
========================================
Build
========================================
Selected platform: iOS
Swift version: 6.4
Building package at path: $PWD
https://github.com/adobe/swan.git
Command line invocation:
/Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/usr/bin/xcodebuild -IDEClonedSourcePackagesDirPathOverride=/Users/admin/builder/spi-builder-workspace/.dependencies -resolvePackageDependencies
Resolve Package Graph
Fetching from https://github.com/swiftlang/swift-format.git
Fetching from https://github.com/swiftlang/swift-syntax.git
Fetching from https://github.com/apple/swift-argument-parser.git
Fetching from https://github.com/swiftwasm/JavaScriptKit.git
Fetching from https://github.com/swiftlang/swift-markdown.git
Fetching from https://github.com/swiftlang/swift-cmark.git
Creating working copy of package ‘JavaScriptKit’
Checking out 0.59.0 of package ‘JavaScriptKit’
Creating working copy of package ‘swift-cmark’
Checking out 0.9.0 of package ‘swift-cmark’
Creating working copy of package ‘swift-format’
Checking out 603.0.0 of package ‘swift-format’
Creating working copy of package ‘swift-markdown’
Checking out 0.9.0 of package ‘swift-markdown’
Creating working copy of package ‘swift-argument-parser’
Checking out 1.8.2 of package ‘swift-argument-parser’
Creating working copy of package ‘swift-syntax’
Checking out 603.0.2 of package ‘swift-syntax’
failed retrieving 'https://github.com/adobe/swan/releases/download/dawn-chromium-stable-148.0.7778.97/dawn-chromium-stable-148.0.7778.97-release.artifactbundleindex': No supported archive was found for 'arm64-apple-macos26.6'fatalErrorResolve Package Graph
failed retrieving 'https://github.com/adobe/swan/releases/download/dawn-chromium-stable-148.0.7778.97/dawn-chromium-stable-148.0.7778.97-release.artifactbundleindex': No supported archive was found for 'arm64-apple-macos26.6'fatalError
Resolved source packages:
spi-builder-workspace: (null)
2026-10-03 05:57:17.490 xcodebuild[529:3031] Writing error result bundle to /var/folders/xq/y_g06wb113726d38xsyx71_h0000gn/T/ResultBundle_2026-03-10_05-57-0017.xcresult
xcodebuild: error: Could not resolve package dependencies:
failed retrieving 'https://github.com/adobe/swan/releases/download/dawn-chromium-stable-148.0.7778.97/dawn-chromium-stable-148.0.7778.97-release.artifactbundleindex': No supported archive was found for 'arm64-apple-macos26.6'
fatalError
Command line invocation:
/Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/usr/bin/xcodebuild -IDEClonedSourcePackagesDirPathOverride=/Users/admin/builder/spi-builder-workspace/.dependencies -resolvePackageDependencies
Resolve Package Graph
failed retrieving 'https://github.com/adobe/swan/releases/download/dawn-chromium-stable-148.0.7778.97/dawn-chromium-stable-148.0.7778.97-release.artifactbundleindex': No supported archive was found for 'arm64-apple-macos26.6'fatalError
Resolved source packages:
spi-builder-workspace: (null)
2026-10-03 05:57:18.953 xcodebuild[822:4684] Writing error result bundle to /var/folders/xq/y_g06wb113726d38xsyx71_h0000gn/T/ResultBundle_2026-03-10_05-57-0018.xcresult
xcodebuild: error: Could not resolve package dependencies:
failed retrieving 'https://github.com/adobe/swan/releases/download/dawn-chromium-stable-148.0.7778.97/dawn-chromium-stable-148.0.7778.97-release.artifactbundleindex': No supported archive was found for 'arm64-apple-macos26.6'
fatalError
BUILD FAILURE 6.4 iOS