Swift Package Index

Build Information

Failed to build WebRTC, reference main (965b4f), with Swift 6.4 for macOS (SPM) on 20 Sep 2026 16:44:17 UTC.

Build Command

env DEVELOPER_DIR=/Applications/Xcode-27.0.0-Release.Candidate.app xcrun swift build --arch arm64

Build Log

========================================
RunAll
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Builder version: 5.1.0
Interrupt handler set up.
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Checkout
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Clone URL: https://github.com/webrtc-sdk/Specs.git
Reference: main
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/webrtc-sdk/Specs
 * branch            main       -> FETCH_HEAD
 * [new branch]      main       -> origin/main
HEAD is now at 965b4fe Add 144.7559.15 to the changelog (#34)
Cloned https://github.com/webrtc-sdk/Specs.git
Revision (git rev-parse @):
965b4feccdd3bc545daf405faa21e72e68816c51
SUCCESS checkout https://github.com/webrtc-sdk/Specs.git at main
========================================
Build
========================================
Selected platform:         macosSpm
Swift version:             6.4
Building package at path:  $PWD
https://github.com/webrtc-sdk/Specs.git
Running build ...
env DEVELOPER_DIR=/Applications/Xcode-27.0.0-Release.Candidate.app xcrun swift build --arch arm64
error: 'spi-builder-workspace': Invalid manifest (compiled with: ["/Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/swiftc", "-vfsoverlay", "/var/folders/xq/y_g06wb113726d38xsyx71_h0000gn/T/TemporaryDirectory.uCC3fe/vfs.yaml", "-L", "/Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/lib/swift/pm/ManifestAPI", "-lPackageDescription", "-Xlinker", "-rpath", "-Xlinker", "/Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/lib/swift/pm/ManifestAPI", "-target", "arm64-apple-macosx14.0", "-plugin-path", "/Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/lib/swift/host/plugins/testing", "-sdk", "/Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX27.0.sdk", "-F", "/Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Platforms/MacOSX.platform/Developer/Library/Frameworks", "-I", "/Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Platforms/MacOSX.platform/Developer/usr/lib", "-L", "/Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Platforms/MacOSX.platform/Developer/usr/lib", "-swift-version", "5", "-I", "/Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/lib/swift/pm/ManifestAPI", "-sdk", "/Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX27.0.sdk", "-package-description-version", "5.9.0", "/Users/admin/builder/spi-builder-workspace/Package.swift", "-o", "/var/folders/xq/y_g06wb113726d38xsyx71_h0000gn/T/TemporaryDirectory.zmMSuo/spi-builder-workspace-manifest"])
/Users/admin/builder/spi-builder-workspace/Package.swift:11:20: error: 'v26' is unavailable
 9 |         .macCatalyst(.v14),
10 |         .tvOS(.v17),
11 |         .visionOS(.v26),
   |                    `- error: 'v26' is unavailable
12 |     ],
13 |     products: [
PackageDescription.SupportedPlatform.VisionOSVersion.v26:4:23: note: 'v26' was introduced in PackageDescription 6.2
2 |   struct VisionOSVersion {
3 | @available(_PackageDescription 6.2)
4 |     public static let v26: SupportedPlatform.VisionOSVersion  }
  |                       `- note: 'v26' was introduced in PackageDescription 6.2
5 | }
6 |
BUILD FAILURE 6.4 macosSpm