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Build Information

Failed to build WebRTC, reference main (965b4f), with Swift 6.4 for iOS using Xcode 27.0 on 20 Sep 2026 16:44:32 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: 5.1.0
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
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Selected platform:         iOS
Swift version:             6.4
Building package at path:  $PWD
https://github.com/webrtc-sdk/Specs.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
Package: spi-builder-workspace
Resolve Package Graph
Package: spi-builder-workspace
Resolved source packages:
  spi-builder-workspace: (null)
2026-09-20 12:44:30.950 xcodebuild[529:3036] Writing error result bundle to /var/folders/xq/y_g06wb113726d38xsyx71_h0000gn/T/ResultBundle_2026-20-09_12-44-0030.xcresult
xcodebuild: error: Could not resolve package dependencies:
  'v26' is unavailable
  /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: PackageDescription.SupportedPlatform.VisionOSVersion  }
  |                       `- note: 'v26' was introduced in PackageDescription 6.2
5 | }
6 |
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
Package: spi-builder-workspace
Resolved source packages:
  spi-builder-workspace: (null)
2026-09-20 12:44:32.154 xcodebuild[593:3630] Writing error result bundle to /var/folders/xq/y_g06wb113726d38xsyx71_h0000gn/T/ResultBundle_2026-20-09_12-44-0032.xcresult
xcodebuild: error: Could not resolve package dependencies:
  'v26' is unavailable
  /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: PackageDescription.SupportedPlatform.VisionOSVersion  }
  |                       `- note: 'v26' was introduced in PackageDescription 6.2
5 | }
6 |
BUILD FAILURE 6.4 iOS