Build Information
Failed to build Ultravox, reference main (eed051), with Swift 6.4 for visionOS using Xcode 27.0 on 22 Sep 2026 08:31:27 UTC.
Build Command
env DEVELOPER_DIR=/Applications/Xcode-27.0.0-Release.Candidate.app xcrun xcodebuild -IDEClonedSourcePackagesDirPathOverride=$PWD/.dependencies -skipMacroValidation -skipPackagePluginValidation -derivedDataPath $PWD/.derivedData build -scheme Ultravox -destination generic/platform=xrOSBuild Log
========================================
RunAll
========================================
Builder version: 5.1.0
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/fixie-ai/ultravox-client-sdk-ios.git
Reference: main
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/fixie-ai/ultravox-client-sdk-ios
* branch main -> FETCH_HEAD
* [new branch] main -> origin/main
HEAD is now at eed0513 Refactored from URLSession to use NWConnection. (#8)
Cloned https://github.com/fixie-ai/ultravox-client-sdk-ios.git
Revision (git rev-parse @):
eed0513a8efdbeb5936de2de04c8e3df9ac05699
SUCCESS checkout https://github.com/fixie-ai/ultravox-client-sdk-ios.git at main
========================================
Build
========================================
Selected platform: visionOS
Swift version: 6.4
Building package at path: $PWD
https://github.com/fixie-ai/ultravox-client-sdk-ios.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/livekit/client-sdk-swift.git
Fetching from https://github.com/livekit/livekit-uniffi-xcframework.git
Fetching from https://github.com/livekit/webrtc-xcframework.git
Creating working copy of package ‘livekit-uniffi-xcframework’
Checking out 0.1.9 of package ‘livekit-uniffi-xcframework’
Creating working copy of package ‘client-sdk-swift’
Checking out 2.17.0 of package ‘client-sdk-swift’
Creating working copy of package ‘webrtc-xcframework’
Checking out 150.7871.2 of package ‘webrtc-xcframework’
Resolve Package Graph
Resolved source packages:
LiveKitWebRTC: https://github.com/livekit/webrtc-xcframework.git @ 150.7871.2
Ultravox: /Users/admin/builder/spi-builder-workspace
LiveKit: https://github.com/livekit/client-sdk-swift.git @ 2.17.0
LiveKitUniFFI: https://github.com/livekit/livekit-uniffi-xcframework.git @ 0.1.9
resolved source packages: LiveKitWebRTC, Ultravox, LiveKit, LiveKitUniFFI
2026-09-22 04:30:45.924 xcodebuild[529:3062] [MT] IDERunDestination: Supported platforms for the buildables in the current scheme is empty.
{
"dependencies" : [
{
"identity" : "client-sdk-swift",
"requirement" : {
"range" : [
{
"lower_bound" : "2.0.16",
"upper_bound" : "3.0.0"
}
]
},
"type" : "sourceControl",
"url" : "https://github.com/livekit/client-sdk-swift.git"
}
],
"manifest_display_name" : "Ultravox",
"name" : "Ultravox",
"path" : "/Users/admin/builder/spi-builder-workspace",
"platforms" : [
{
"name" : "ios",
"version" : "13.0"
},
{
"name" : "macos",
"version" : "10.15"
}
],
"products" : [
{
"name" : "Ultravox",
"targets" : [
"Ultravox"
],
"type" : {
"library" : [
"automatic"
]
}
}
],
"targets" : [
{
"c99name" : "Ultravox",
"module_type" : "SwiftTarget",
"name" : "Ultravox",
"path" : "Sources/Ultravox",
"product_dependencies" : [
"LiveKit"
],
"product_memberships" : [
"Ultravox"
],
"sources" : [
"Ultravox.swift"
],
"type" : "library"
}
],
"tools_version" : "6.0"
}
{
"workspace" : {
"name" : "Ultravox",
"schemes" : [
"Ultravox"
]
}
}
2026-09-22 04:31:18.526 xcodebuild[829:4700] [MT] IDERunDestination: Supported platforms for the buildables in the current scheme is empty.
Running build ...
env DEVELOPER_DIR=/Applications/Xcode-27.0.0-Release.Candidate.app xcrun xcodebuild -IDEClonedSourcePackagesDirPathOverride=$PWD/.dependencies -skipMacroValidation -skipPackagePluginValidation -derivedDataPath $PWD/.derivedData build -scheme Ultravox -destination generic/platform=xrOS
Command line invocation:
/Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/usr/bin/xcodebuild -IDEClonedSourcePackagesDirPathOverride=/Users/admin/builder/spi-builder-workspace/.dependencies -skipMacroValidation -skipPackagePluginValidation -derivedDataPath /Users/admin/builder/spi-builder-workspace/.derivedData build -scheme Ultravox -destination generic/platform=xrOS
Resolve Package Graph
Resolve Package Graph
Resolved source packages:
Ultravox: /Users/admin/builder/spi-builder-workspace
LiveKitUniFFI: https://github.com/livekit/livekit-uniffi-xcframework.git @ 0.1.9
LiveKit: https://github.com/livekit/client-sdk-swift.git @ 2.17.0
LiveKitWebRTC: https://github.com/livekit/webrtc-xcframework.git @ 150.7871.2
ComputePackagePrebuildTargetDependencyGraph
Prepare packages
CreateBuildRequest
SendProjectDescription
CreateBuildOperation
ComputeTargetDependencyGraph
note: Building targets in dependency order
note: Target dependency graph (11 targets)
Target 'Ultravox-product' in project 'Ultravox'
➜ Explicit dependency on target 'Ultravox' in project 'Ultravox'
➜ Explicit dependency on target 'LiveKit-product' in project 'LiveKit'
Target 'Ultravox' in project 'Ultravox'
➜ Explicit dependency on target 'LiveKit-product' in project 'LiveKit'
Target 'LiveKit-product' in project 'LiveKit'
➜ Explicit dependency on target 'LiveKit' in project 'LiveKit'
➜ Explicit dependency on target 'LiveKit_LiveKit' in project 'LiveKit'
➜ Explicit dependency on target 'CLiveKitProto' in project 'LiveKit'
➜ Explicit dependency on target 'LiveKitNanopb' in project 'LiveKit'
➜ Explicit dependency on target 'LKObjCHelpers' in project 'LiveKit'
➜ Explicit dependency on target 'LiveKitWebRTC-product' in project 'LiveKitWebRTC'
➜ Explicit dependency on target 'LiveKitUniFFI-product' in project 'LiveKitUniFFI'
Target 'LiveKit' in project 'LiveKit'
➜ Explicit dependency on target 'LiveKit_LiveKit' in project 'LiveKit'
➜ Explicit dependency on target 'CLiveKitProto' in project 'LiveKit'
➜ Explicit dependency on target 'LiveKitNanopb' in project 'LiveKit'
➜ Explicit dependency on target 'LKObjCHelpers' in project 'LiveKit'
➜ Explicit dependency on target 'LiveKitWebRTC-product' in project 'LiveKitWebRTC'
➜ Explicit dependency on target 'LiveKitUniFFI-product' in project 'LiveKitUniFFI'
Target 'LiveKitUniFFI-product' in project 'LiveKitUniFFI'
➜ Explicit dependency on target 'LiveKitUniFFI' in project 'LiveKitUniFFI'
Target 'LiveKitUniFFI' in project 'LiveKitUniFFI' (no dependencies)
Target 'LiveKitWebRTC-product' in project 'LiveKitWebRTC' (no dependencies)
Target 'LKObjCHelpers' in project 'LiveKit' (no dependencies)
Target 'LiveKitNanopb' in project 'LiveKit'
➜ Explicit dependency on target 'CLiveKitProto' in project 'LiveKit'
Target 'CLiveKitProto' in project 'LiveKit' (no dependencies)
Target 'LiveKit_LiveKit' in project 'LiveKit' (no dependencies)
GatherProvisioningInputs
CreateBuildDescription
ExecuteExternalTool /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang -v -E -dM -arch arm64 -isysroot /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Platforms/XROS.platform/Developer/SDKs/XROS27.0.sdk -x c -c /dev/null
ExecuteExternalTool /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/swiftc --version
ExecuteExternalTool /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang -v -E -dM -arch arm64 -isysroot /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Platforms/XROS.platform/Developer/SDKs/XROS27.0.sdk -x objective-c -c /dev/null
ExecuteExternalTool /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang -v -E -dM -isysroot /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Platforms/XROS.platform/Developer/SDKs/XROS27.0.sdk -x c -c /dev/null
ExecuteExternalTool /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/ld -version_details
ReadFileContents /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/share/docc/features.json
Build description signature: 11251cc957a1484f54af0e98bf85e4b2
Build description path: /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/XCBuildData/11251cc957a1484f54af0e98bf85e4b2.xcbuilddata
error: The package product 'LiveKit-product' requires minimum platform version 26.0 for the visionOS platform, but this target supports 1.0 (in target 'Ultravox' from project 'Ultravox')
2026-09-22 04:31:21.762 xcodebuild[830:4743] [MT] IDERunDestination: Supported platforms for the buildables in the current scheme is empty.
** BUILD FAILED **
The following build commands failed:
Building workspace Ultravox with scheme Ultravox
(1 failure)
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
Resolved source packages:
LiveKitWebRTC: https://github.com/livekit/webrtc-xcframework.git @ 150.7871.2
LiveKitUniFFI: https://github.com/livekit/livekit-uniffi-xcframework.git @ 0.1.9
Ultravox: /Users/admin/builder/spi-builder-workspace
LiveKit: https://github.com/livekit/client-sdk-swift.git @ 2.17.0
resolved source packages: LiveKitWebRTC, LiveKitUniFFI, Ultravox, LiveKit
2026-09-22 04:31:24.255 xcodebuild[873:4981] [MT] IDERunDestination: Supported platforms for the buildables in the current scheme is empty.
{
"dependencies" : [
{
"identity" : "client-sdk-swift",
"requirement" : {
"range" : [
{
"lower_bound" : "2.0.16",
"upper_bound" : "3.0.0"
}
]
},
"type" : "sourceControl",
"url" : "https://github.com/livekit/client-sdk-swift.git"
}
],
"manifest_display_name" : "Ultravox",
"name" : "Ultravox",
"path" : "/Users/admin/builder/spi-builder-workspace",
"platforms" : [
{
"name" : "ios",
"version" : "13.0"
},
{
"name" : "macos",
"version" : "10.15"
}
],
"products" : [
{
"name" : "Ultravox",
"targets" : [
"Ultravox"
],
"type" : {
"library" : [
"automatic"
]
}
}
],
"targets" : [
{
"c99name" : "Ultravox",
"module_type" : "SwiftTarget",
"name" : "Ultravox",
"path" : "Sources/Ultravox",
"product_dependencies" : [
"LiveKit"
],
"product_memberships" : [
"Ultravox"
],
"sources" : [
"Ultravox.swift"
],
"type" : "library"
}
],
"tools_version" : "6.0"
}
{
"workspace" : {
"name" : "Ultravox",
"schemes" : [
"Ultravox"
]
}
}
2026-09-22 04:31:25.623 xcodebuild[881:5039] [MT] IDERunDestination: Supported platforms for the buildables in the current scheme is empty.
Running build ...
env DEVELOPER_DIR=/Applications/Xcode-27.0.0-Release.Candidate.app xcrun xcodebuild -IDEClonedSourcePackagesDirPathOverride=$PWD/.dependencies -skipMacroValidation -skipPackagePluginValidation -derivedDataPath $PWD/.derivedData build -scheme Ultravox -destination generic/platform=xrOS
Command line invocation:
/Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/usr/bin/xcodebuild -IDEClonedSourcePackagesDirPathOverride=/Users/admin/builder/spi-builder-workspace/.dependencies -skipMacroValidation -skipPackagePluginValidation -derivedDataPath /Users/admin/builder/spi-builder-workspace/.derivedData build -scheme Ultravox -destination generic/platform=xrOS
Resolve Package Graph
Resolved source packages:
LiveKitUniFFI: https://github.com/livekit/livekit-uniffi-xcframework.git @ 0.1.9
Ultravox: /Users/admin/builder/spi-builder-workspace
LiveKitWebRTC: https://github.com/livekit/webrtc-xcframework.git @ 150.7871.2
LiveKit: https://github.com/livekit/client-sdk-swift.git @ 2.17.0
ComputePackagePrebuildTargetDependencyGraph
Prepare packages
CreateBuildRequest
SendProjectDescription
CreateBuildOperation
ComputeTargetDependencyGraph
note: Building targets in dependency order
note: Target dependency graph (11 targets)
Target 'Ultravox-product' in project 'Ultravox'
➜ Explicit dependency on target 'Ultravox' in project 'Ultravox'
➜ Explicit dependency on target 'LiveKit-product' in project 'LiveKit'
Target 'Ultravox' in project 'Ultravox'
➜ Explicit dependency on target 'LiveKit-product' in project 'LiveKit'
Target 'LiveKit-product' in project 'LiveKit'
➜ Explicit dependency on target 'LiveKit' in project 'LiveKit'
➜ Explicit dependency on target 'LiveKit_LiveKit' in project 'LiveKit'
➜ Explicit dependency on target 'CLiveKitProto' in project 'LiveKit'
➜ Explicit dependency on target 'LiveKitNanopb' in project 'LiveKit'
➜ Explicit dependency on target 'LKObjCHelpers' in project 'LiveKit'
➜ Explicit dependency on target 'LiveKitWebRTC-product' in project 'LiveKitWebRTC'
➜ Explicit dependency on target 'LiveKitUniFFI-product' in project 'LiveKitUniFFI'
Target 'LiveKit' in project 'LiveKit'
➜ Explicit dependency on target 'LiveKit_LiveKit' in project 'LiveKit'
➜ Explicit dependency on target 'CLiveKitProto' in project 'LiveKit'
➜ Explicit dependency on target 'LiveKitNanopb' in project 'LiveKit'
➜ Explicit dependency on target 'LKObjCHelpers' in project 'LiveKit'
➜ Explicit dependency on target 'LiveKitWebRTC-product' in project 'LiveKitWebRTC'
➜ Explicit dependency on target 'LiveKitUniFFI-product' in project 'LiveKitUniFFI'
Target 'LiveKitUniFFI-product' in project 'LiveKitUniFFI'
➜ Explicit dependency on target 'LiveKitUniFFI' in project 'LiveKitUniFFI'
Target 'LiveKitUniFFI' in project 'LiveKitUniFFI' (no dependencies)
Target 'LiveKitWebRTC-product' in project 'LiveKitWebRTC' (no dependencies)
Target 'LKObjCHelpers' in project 'LiveKit' (no dependencies)
Target 'LiveKitNanopb' in project 'LiveKit'
➜ Explicit dependency on target 'CLiveKitProto' in project 'LiveKit'
Target 'CLiveKitProto' in project 'LiveKit' (no dependencies)
Target 'LiveKit_LiveKit' in project 'LiveKit' (no dependencies)
GatherProvisioningInputs
CreateBuildDescription
error: The package product 'LiveKit-product' requires minimum platform version 26.0 for the visionOS platform, but this target supports 1.0 (in target 'Ultravox' from project 'Ultravox')
2026-09-22 04:31:26.760 xcodebuild[882:5065] [MT] IDERunDestination: Supported platforms for the buildables in the current scheme is empty.
** BUILD FAILED **
The following build commands failed:
Building workspace Ultravox with scheme Ultravox
(1 failure)
BUILD FAILURE 6.4 visionOS