Swift Package Index

Build Information

Failed to build spfk-audio-hardware, reference development (d8e45f), with Swift 6.3 for iOS using Xcode 26.4 on 27 Apr 2026 17:22:38 UTC.

Build Command

env DEVELOPER_DIR=/Applications/Xcode-26.4.0.app xcrun xcodebuild -IDEClonedSourcePackagesDirPathOverride=$PWD/.dependencies -skipMacroValidation -skipPackagePluginValidation -derivedDataPath $PWD/.derivedData build -scheme spfk-audio-hardware -destination generic/platform=iOS

Build Log

========================================
RunAll
========================================
Builder version: 4.70.0
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/ryanfrancesconi/spfk-audio-hardware.git
Reference: development
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/ryanfrancesconi/spfk-audio-hardware
 * branch            development -> FETCH_HEAD
 * [new branch]      development -> origin/development
HEAD is now at d8e45f1 Remove allCasesCount check from DefaultSelectorTypeTests
Cloned https://github.com/ryanfrancesconi/spfk-audio-hardware.git
Revision (git rev-parse @):
d8e45f136a82373741b80fbc66fe8f237fe06786
SUCCESS checkout https://github.com/ryanfrancesconi/spfk-audio-hardware.git at development
========================================
Build
========================================
Selected platform:         iOS
Swift version:             6.3
Building package at path:  $PWD
https://github.com/ryanfrancesconi/spfk-audio-hardware.git
Command line invocation:
    /Applications/Xcode-26.4.0.app/Contents/Developer/usr/bin/xcodebuild -IDEClonedSourcePackagesDirPathOverride=/Users/admin/builder/spi-builder-workspace/.dependencies -resolvePackageDependencies
Resolve Package Graph
Fetching from https://github.com/ryanfrancesconi/spfk-base
Fetching from https://github.com/ryanfrancesconi/spfk-testing
Fetching from https://github.com/orchetect/swift-extensions
Fetching from https://github.com/apple/swift-collections
Fetching from https://github.com/apple/swift-async-algorithms
Fetching from https://github.com/apple/swift-numerics
Fetching from https://github.com/orchetect/swift-data-parsing
Creating working copy of package ‘swift-async-algorithms’
Checking out 1.1.3 of package ‘swift-async-algorithms’
Creating working copy of package ‘swift-data-parsing’
Checking out 0.1.2 of package ‘swift-data-parsing’
Creating working copy of package ‘swift-extensions’
Checking out 2.1.7 of package ‘swift-extensions’
Creating working copy of package ‘swift-numerics’
Checking out 1.1.1 of package ‘swift-numerics’
Creating working copy of package ‘swift-collections’
Checking out 1.4.1 of package ‘swift-collections’
Creating working copy of package ‘spfk-testing’
Checking out 0.0.13 of package ‘spfk-testing’
Creating working copy of package ‘spfk-base’
Checking out 0.0.12 of package ‘spfk-base’
Resolve Package Graph
Resolved source packages:
  spfk-base: https://github.com/ryanfrancesconi/spfk-base @ 0.0.12
  swift-data-parsing: https://github.com/orchetect/swift-data-parsing @ 0.1.2
  spfk-testing: https://github.com/ryanfrancesconi/spfk-testing @ 0.0.13
  swift-extensions: https://github.com/orchetect/swift-extensions @ 2.1.7
  swift-collections: https://github.com/apple/swift-collections @ 1.4.1
  swift-numerics: https://github.com/apple/swift-numerics @ 1.1.1
  spfk-audio-hardware: /Users/admin/builder/spi-builder-workspace
  swift-async-algorithms: https://github.com/apple/swift-async-algorithms @ 1.1.3
resolved source packages: spfk-base, swift-data-parsing, spfk-testing, swift-extensions, swift-collections, swift-numerics, spfk-audio-hardware, swift-async-algorithms
2026-04-27 13:22:15.666 xcodebuild[534:3075] [MT] IDERunDestination: Supported platforms for the buildables in the current scheme is empty.
{
  "dependencies" : [
    {
      "identity" : "spfk-base",
      "requirement" : {
        "range" : [
          {
            "lower_bound" : "0.0.8",
            "upper_bound" : "1.0.0"
          }
        ]
      },
      "type" : "sourceControl",
      "url" : "https://github.com/ryanfrancesconi/spfk-base"
    },
    {
      "identity" : "spfk-testing",
      "requirement" : {
        "range" : [
          {
            "lower_bound" : "0.0.9",
            "upper_bound" : "1.0.0"
          }
        ]
      },
      "type" : "sourceControl",
      "url" : "https://github.com/ryanfrancesconi/spfk-testing"
    }
  ],
  "manifest_display_name" : "spfk-audio-hardware",
  "name" : "spfk-audio-hardware",
  "path" : "/Users/admin/builder/spi-builder-workspace",
  "platforms" : [
    {
      "name" : "macos",
      "version" : "13.0"
    }
  ],
  "products" : [
    {
      "name" : "SPFKAudioHardware",
      "targets" : [
        "SPFKAudioHardware"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "SPFKAudioHardwareTests",
      "module_type" : "SwiftTarget",
      "name" : "SPFKAudioHardwareTests",
      "path" : "Tests/SPFKAudioHardwareTests",
      "product_dependencies" : [
        "SPFKTesting"
      ],
      "sources" : [
        "AudioDeviceNotificationTests.swift",
        "AudioDevicePropertyTests.swift",
        "AudioHardwareManagerTests.swift",
        "AudioHardwareTests.swift",
        "AudioStreamTests.swift",
        "Classes/AudioHardwareTestCase.swift",
        "Classes/NullDeviceTestCase.swift",
        "Classes/SCATestCase+Helpers.swift",
        "DefaultAudioDeviceTests.swift",
        "Definitions/AudioDeviceNamedChannelTests.swift",
        "Definitions/DefinitionTests.swift",
        "Definitions/ScopeTests.swift",
        "MockPropertyTests.swift",
        "Mocks/MockAudioBackend.swift",
        "Mocks/MockDeviceFactory.swift",
        "NullDeviceTests.swift",
        "SampleRateStateTests.swift",
        "Tags+AudioHardware.swift"
      ],
      "target_dependencies" : [
        "SPFKAudioHardware"
      ],
      "type" : "test"
    },
    {
      "c99name" : "SPFKAudioHardware",
      "module_type" : "SwiftTarget",
      "name" : "SPFKAudioHardware",
      "path" : "Sources/SPFKAudioHardware",
      "product_dependencies" : [
        "SPFKBase"
      ],
      "product_memberships" : [
        "SPFKAudioHardware"
      ],
      "sources" : [
        "Internal/AudioBackend.swift",
        "Internal/AudioDeviceCache.swift",
        "Internal/AudioObjectBackend.swift",
        "Internal/AudioObjectPool.swift",
        "Internal/AudioObjectPropertyAddress+.swift",
        "Internal/AudioObjectPropertyListener.swift",
        "Internal/CoreAudioBackend.swift",
        "Public/AudioHardwareManager+Aggregate.swift",
        "Public/AudioHardwareManager+Properties.swift",
        "Public/AudioHardwareManager.swift",
        "Public/AudioObject/AudioDevice/AudioDevice+Channels.swift",
        "Public/AudioObject/AudioDevice/AudioDevice+DataSource.swift",
        "Public/AudioObject/AudioDevice/AudioDevice+DefaultDevice.swift",
        "Public/AudioObject/AudioDevice/AudioDevice+HogMode.swift",
        "Public/AudioObject/AudioDevice/AudioDevice+LFE.swift",
        "Public/AudioObject/AudioDevice/AudioDevice+Latency.swift",
        "Public/AudioObject/AudioDevice/AudioDevice+Static.swift",
        "Public/AudioObject/AudioDevice/AudioDevice+Stream.swift",
        "Public/AudioObject/AudioDevice/AudioDevice+VirtualMainOutput.swift",
        "Public/AudioObject/AudioDevice/AudioDevice+VolumeConversion.swift",
        "Public/AudioObject/AudioDevice/AudioDevice.swift",
        "Public/AudioObject/AudioDevice/Properties/AudioDevice+Aggregate.swift",
        "Public/AudioObject/AudioDevice/Properties/AudioDevice+Channel.swift",
        "Public/AudioObject/AudioDevice/Properties/AudioDevice+ClockSource.swift",
        "Public/AudioObject/AudioDevice/Properties/AudioDevice+GeneralInformation.swift",
        "Public/AudioObject/AudioDevice/Properties/AudioDevice+SampleRate.swift",
        "Public/AudioObject/AudioDevice/SampleRateState.swift",
        "Public/AudioObject/AudioDevice/SplitAudioDevice.swift",
        "Public/AudioObject/AudioObjectOwner.swift",
        "Public/AudioObject/AudioStream+Properties.swift",
        "Public/AudioObject/AudioStream.swift",
        "Public/AudioObject/Model/AudioObjectModel+Static.swift",
        "Public/AudioObject/Model/AudioObjectModel.swift",
        "Public/AudioObject/Model/AudioPropertyListenerModel.swift",
        "Public/Definitions/Channels/AudioDeviceNamedChannel.swift",
        "Public/Definitions/Channels/Scope.swift",
        "Public/Definitions/Channels/StereoPair.swift",
        "Public/Definitions/DefaultSelectorType.swift",
        "Public/Definitions/DeviceStatusEvent.swift",
        "Public/Definitions/TerminalType.swift",
        "Public/Definitions/TransportType.swift",
        "Public/Definitions/VolumeInfo.swift",
        "Public/Notifications/AudioDeviceNotification.swift",
        "Public/Notifications/AudioHardwareNotification.swift",
        "Public/Notifications/AudioStreamNotification.swift",
        "Public/Notifications/Notification.Name+.swift",
        "Public/Notifications/PropertyAddressNotification.swift"
      ],
      "type" : "library"
    }
  ],
  "tools_version" : "6.2"
}
{
  "workspace" : {
    "name" : "spi-builder-workspace",
    "schemes" : [
      "spfk-audio-hardware",
      "swift-data-parsing",
      "swift-extensions"
    ]
  }
}
2026-04-27 13:22:23.854 xcodebuild[900:4997] [MT] IDERunDestination: Supported platforms for the buildables in the current scheme is empty.
{
  "workspace" : {
    "name" : "spi-builder-workspace",
    "schemes" : [
      "spfk-audio-hardware",
      "swift-data-parsing",
      "swift-extensions"
    ]
  }
}
2026-04-27 13:22:25.523 xcodebuild[930:5173] [MT] IDERunDestination: Supported platforms for the buildables in the current scheme is empty.
Running build ...
env DEVELOPER_DIR=/Applications/Xcode-26.4.0.app xcrun xcodebuild -IDEClonedSourcePackagesDirPathOverride=$PWD/.dependencies -skipMacroValidation -skipPackagePluginValidation -derivedDataPath $PWD/.derivedData build -scheme spfk-audio-hardware -destination generic/platform=iOS
Command line invocation:
    /Applications/Xcode-26.4.0.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 spfk-audio-hardware -destination generic/platform=iOS
Resolve Package Graph
Resolve Package Graph
Resolved source packages:
  swift-numerics: https://github.com/apple/swift-numerics @ 1.1.1
  spfk-audio-hardware: /Users/admin/builder/spi-builder-workspace
  swift-collections: https://github.com/apple/swift-collections @ 1.4.1
  swift-async-algorithms: https://github.com/apple/swift-async-algorithms @ 1.1.3
  swift-data-parsing: https://github.com/orchetect/swift-data-parsing @ 0.1.2
  spfk-testing: https://github.com/ryanfrancesconi/spfk-testing @ 0.0.13
  spfk-base: https://github.com/ryanfrancesconi/spfk-base @ 0.0.12
  swift-extensions: https://github.com/orchetect/swift-extensions @ 2.1.7
ComputePackagePrebuildTargetDependencyGraph
Prepare packages
CreateBuildRequest
SendProjectDescription
CreateBuildOperation
ComputeTargetDependencyGraph
note: Building targets in dependency order
note: Target dependency graph (28 targets)
    Target 'SPFKAudioHardware' in project 'spfk-audio-hardware'
        ➜ Explicit dependency on target 'SPFKAudioHardware' in project 'spfk-audio-hardware'
        ➜ Explicit dependency on target 'SPFKBase' in project 'spfk-base'
    Target 'SPFKAudioHardware' in project 'spfk-audio-hardware'
        ➜ Explicit dependency on target 'SPFKBase' in project 'spfk-base'
    Target 'SPFKBase' in project 'spfk-base'
        ➜ Explicit dependency on target 'SPFKBase' in project 'spfk-base'
        ➜ Explicit dependency on target 'SPFKBaseC' in project 'spfk-base'
        ➜ Explicit dependency on target 'SwiftExtensions' in project 'swift-extensions'
        ➜ Explicit dependency on target 'Numerics' in project 'swift-numerics'
        ➜ Explicit dependency on target 'Collections' in project 'swift-collections'
        ➜ Explicit dependency on target 'AsyncAlgorithms' in project 'swift-async-algorithms'
    Target 'SPFKBase' in project 'spfk-base'
        ➜ Explicit dependency on target 'SPFKBaseC' in project 'spfk-base'
        ➜ Explicit dependency on target 'SwiftExtensions' in project 'swift-extensions'
        ➜ Explicit dependency on target 'Numerics' in project 'swift-numerics'
        ➜ Explicit dependency on target 'Collections' in project 'swift-collections'
        ➜ Explicit dependency on target 'AsyncAlgorithms' in project 'swift-async-algorithms'
    Target 'AsyncAlgorithms' in project 'swift-async-algorithms'
        ➜ Explicit dependency on target 'AsyncAlgorithms' in project 'swift-async-algorithms'
        ➜ Explicit dependency on target 'OrderedCollections' in project 'swift-collections'
        ➜ Explicit dependency on target 'DequeModule' in project 'swift-collections'
    Target 'AsyncAlgorithms' in project 'swift-async-algorithms'
        ➜ Explicit dependency on target 'OrderedCollections' in project 'swift-collections'
        ➜ Explicit dependency on target 'DequeModule' in project 'swift-collections'
    Target 'DequeModule' in project 'swift-collections'
        ➜ Explicit dependency on target 'DequeModule' in project 'swift-collections'
        ➜ Explicit dependency on target 'InternalCollectionsUtilities' in project 'swift-collections'
        ➜ Explicit dependency on target 'ContainersPreview' in project 'swift-collections'
    Target 'OrderedCollections' in project 'swift-collections'
        ➜ Explicit dependency on target 'OrderedCollections' in project 'swift-collections'
        ➜ Explicit dependency on target 'InternalCollectionsUtilities' in project 'swift-collections'
    Target 'Collections' in project 'swift-collections'
        ➜ Explicit dependency on target 'Collections' in project 'swift-collections'
        ➜ Explicit dependency on target 'InternalCollectionsUtilities' in project 'swift-collections'
        ➜ Explicit dependency on target 'BitCollections' in project 'swift-collections'
        ➜ Explicit dependency on target 'ContainersPreview' in project 'swift-collections'
        ➜ Explicit dependency on target 'DequeModule' in project 'swift-collections'
        ➜ Explicit dependency on target 'HashTreeCollections' in project 'swift-collections'
        ➜ Explicit dependency on target 'HeapModule' in project 'swift-collections'
        ➜ Explicit dependency on target 'OrderedCollections' in project 'swift-collections'
        ➜ Explicit dependency on target '_RopeModule' in project 'swift-collections'
    Target 'Collections' in project 'swift-collections'
        ➜ Explicit dependency on target 'InternalCollectionsUtilities' in project 'swift-collections'
        ➜ Explicit dependency on target 'BitCollections' in project 'swift-collections'
        ➜ Explicit dependency on target 'ContainersPreview' in project 'swift-collections'
        ➜ Explicit dependency on target 'DequeModule' in project 'swift-collections'
        ➜ Explicit dependency on target 'HashTreeCollections' in project 'swift-collections'
        ➜ Explicit dependency on target 'HeapModule' in project 'swift-collections'
        ➜ Explicit dependency on target 'OrderedCollections' in project 'swift-collections'
        ➜ Explicit dependency on target '_RopeModule' in project 'swift-collections'
    Target '_RopeModule' in project 'swift-collections'
        ➜ Explicit dependency on target 'InternalCollectionsUtilities' in project 'swift-collections'
    Target 'OrderedCollections' in project 'swift-collections'
        ➜ Explicit dependency on target 'InternalCollectionsUtilities' in project 'swift-collections'
    Target 'HeapModule' in project 'swift-collections'
        ➜ Explicit dependency on target 'InternalCollectionsUtilities' in project 'swift-collections'
    Target 'HashTreeCollections' in project 'swift-collections'
        ➜ Explicit dependency on target 'InternalCollectionsUtilities' in project 'swift-collections'
    Target 'DequeModule' in project 'swift-collections'
        ➜ Explicit dependency on target 'InternalCollectionsUtilities' in project 'swift-collections'
        ➜ Explicit dependency on target 'ContainersPreview' in project 'swift-collections'
    Target 'ContainersPreview' in project 'swift-collections'
        ➜ Explicit dependency on target 'InternalCollectionsUtilities' in project 'swift-collections'
    Target 'BitCollections' in project 'swift-collections'
        ➜ Explicit dependency on target 'InternalCollectionsUtilities' in project 'swift-collections'
    Target 'InternalCollectionsUtilities' in project 'swift-collections' (no dependencies)
    Target 'Numerics' in project 'swift-numerics'
        ➜ Explicit dependency on target 'Numerics' in project 'swift-numerics'
        ➜ Explicit dependency on target '_NumericsShims' in project 'swift-numerics'
        ➜ Explicit dependency on target 'RealModule' in project 'swift-numerics'
        ➜ Explicit dependency on target 'ComplexModule' in project 'swift-numerics'
    Target 'Numerics' in project 'swift-numerics'
        ➜ Explicit dependency on target '_NumericsShims' in project 'swift-numerics'
        ➜ Explicit dependency on target 'RealModule' in project 'swift-numerics'
        ➜ Explicit dependency on target 'ComplexModule' in project 'swift-numerics'
    Target 'ComplexModule' in project 'swift-numerics'
        ➜ Explicit dependency on target '_NumericsShims' in project 'swift-numerics'
        ➜ Explicit dependency on target 'RealModule' in project 'swift-numerics'
    Target 'RealModule' in project 'swift-numerics'
        ➜ Explicit dependency on target '_NumericsShims' in project 'swift-numerics'
    Target '_NumericsShims' in project 'swift-numerics' (no dependencies)
    Target 'SwiftExtensions' in project 'swift-extensions'
        ➜ Explicit dependency on target 'SwiftExtensions' in project 'swift-extensions'
        ➜ Explicit dependency on target 'SwiftDataParsing' in project 'swift-data-parsing'
    Target 'SwiftExtensions' in project 'swift-extensions'
        ➜ Explicit dependency on target 'SwiftDataParsing' in project 'swift-data-parsing'
    Target 'SwiftDataParsing' in project 'swift-data-parsing'
        ➜ Explicit dependency on target 'SwiftDataParsing' in project 'swift-data-parsing'
    Target 'SwiftDataParsing' in project 'swift-data-parsing' (no dependencies)
    Target 'SPFKBaseC' in project 'spfk-base' (no dependencies)
GatherProvisioningInputs
CreateBuildDescription
ExecuteExternalTool /Applications/Xcode-26.4.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang -v -E -dM -arch arm64 -isysroot /Applications/Xcode-26.4.0.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS26.4.sdk -x objective-c -c /dev/null
ExecuteExternalTool /Applications/Xcode-26.4.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang -v -E -dM -arch arm64 -isysroot /Applications/Xcode-26.4.0.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS26.4.sdk -x c -c /dev/null
ExecuteExternalTool /Applications/Xcode-26.4.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/swiftc --version
ExecuteExternalTool /Applications/Xcode-26.4.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang -v -E -dM -isysroot /Applications/Xcode-26.4.0.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS26.4.sdk -x c -c /dev/null
ExecuteExternalTool /Applications/Xcode-26.4.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/ld -version_details
ReadFileContents /Applications/Xcode-26.4.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/share/docc/features.json
Build description signature: 77c1a9e8939031596ac713913f6463b6
Build description path: /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/XCBuildData/77c1a9e8939031596ac713913f6463b6.xcbuilddata
error: The package product 'SPFKBase' requires minimum platform version 16.0 for the iOS platform, but this target supports 12.0 (in target 'SPFKAudioHardware' from project 'spfk-audio-hardware')
2026-04-27 13:22:29.783 xcodebuild[957:5293] [MT] IDERunDestination: Supported platforms for the buildables in the current scheme is empty.
** BUILD FAILED **
The following build commands failed:
	Building workspace spi-builder-workspace with scheme spfk-audio-hardware
(1 failure)
Command line invocation:
    /Applications/Xcode-26.4.0.app/Contents/Developer/usr/bin/xcodebuild -IDEClonedSourcePackagesDirPathOverride=/Users/admin/builder/spi-builder-workspace/.dependencies -resolvePackageDependencies
Resolve Package Graph
Resolved source packages:
  spfk-audio-hardware: /Users/admin/builder/spi-builder-workspace
  swift-data-parsing: https://github.com/orchetect/swift-data-parsing @ 0.1.2
  swift-async-algorithms: https://github.com/apple/swift-async-algorithms @ 1.1.3
  swift-numerics: https://github.com/apple/swift-numerics @ 1.1.1
  swift-extensions: https://github.com/orchetect/swift-extensions @ 2.1.7
  swift-collections: https://github.com/apple/swift-collections @ 1.4.1
  spfk-base: https://github.com/ryanfrancesconi/spfk-base @ 0.0.12
  spfk-testing: https://github.com/ryanfrancesconi/spfk-testing @ 0.0.13
resolved source packages: spfk-audio-hardware, swift-data-parsing, swift-async-algorithms, swift-numerics, swift-extensions, swift-collections, spfk-base, spfk-testing
2026-04-27 13:22:33.262 xcodebuild[1105:6095] [MT] IDERunDestination: Supported platforms for the buildables in the current scheme is empty.
{
  "dependencies" : [
    {
      "identity" : "spfk-base",
      "requirement" : {
        "range" : [
          {
            "lower_bound" : "0.0.8",
            "upper_bound" : "1.0.0"
          }
        ]
      },
      "type" : "sourceControl",
      "url" : "https://github.com/ryanfrancesconi/spfk-base"
    },
    {
      "identity" : "spfk-testing",
      "requirement" : {
        "range" : [
          {
            "lower_bound" : "0.0.9",
            "upper_bound" : "1.0.0"
          }
        ]
      },
      "type" : "sourceControl",
      "url" : "https://github.com/ryanfrancesconi/spfk-testing"
    }
  ],
  "manifest_display_name" : "spfk-audio-hardware",
  "name" : "spfk-audio-hardware",
  "path" : "/Users/admin/builder/spi-builder-workspace",
  "platforms" : [
    {
      "name" : "macos",
      "version" : "13.0"
    }
  ],
  "products" : [
    {
      "name" : "SPFKAudioHardware",
      "targets" : [
        "SPFKAudioHardware"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "SPFKAudioHardwareTests",
      "module_type" : "SwiftTarget",
      "name" : "SPFKAudioHardwareTests",
      "path" : "Tests/SPFKAudioHardwareTests",
      "product_dependencies" : [
        "SPFKTesting"
      ],
      "sources" : [
        "AudioDeviceNotificationTests.swift",
        "AudioDevicePropertyTests.swift",
        "AudioHardwareManagerTests.swift",
        "AudioHardwareTests.swift",
        "AudioStreamTests.swift",
        "Classes/AudioHardwareTestCase.swift",
        "Classes/NullDeviceTestCase.swift",
        "Classes/SCATestCase+Helpers.swift",
        "DefaultAudioDeviceTests.swift",
        "Definitions/AudioDeviceNamedChannelTests.swift",
        "Definitions/DefinitionTests.swift",
        "Definitions/ScopeTests.swift",
        "MockPropertyTests.swift",
        "Mocks/MockAudioBackend.swift",
        "Mocks/MockDeviceFactory.swift",
        "NullDeviceTests.swift",
        "SampleRateStateTests.swift",
        "Tags+AudioHardware.swift"
      ],
      "target_dependencies" : [
        "SPFKAudioHardware"
      ],
      "type" : "test"
    },
    {
      "c99name" : "SPFKAudioHardware",
      "module_type" : "SwiftTarget",
      "name" : "SPFKAudioHardware",
      "path" : "Sources/SPFKAudioHardware",
      "product_dependencies" : [
        "SPFKBase"
      ],
      "product_memberships" : [
        "SPFKAudioHardware"
      ],
      "sources" : [
        "Internal/AudioBackend.swift",
        "Internal/AudioDeviceCache.swift",
        "Internal/AudioObjectBackend.swift",
        "Internal/AudioObjectPool.swift",
        "Internal/AudioObjectPropertyAddress+.swift",
        "Internal/AudioObjectPropertyListener.swift",
        "Internal/CoreAudioBackend.swift",
        "Public/AudioHardwareManager+Aggregate.swift",
        "Public/AudioHardwareManager+Properties.swift",
        "Public/AudioHardwareManager.swift",
        "Public/AudioObject/AudioDevice/AudioDevice+Channels.swift",
        "Public/AudioObject/AudioDevice/AudioDevice+DataSource.swift",
        "Public/AudioObject/AudioDevice/AudioDevice+DefaultDevice.swift",
        "Public/AudioObject/AudioDevice/AudioDevice+HogMode.swift",
        "Public/AudioObject/AudioDevice/AudioDevice+LFE.swift",
        "Public/AudioObject/AudioDevice/AudioDevice+Latency.swift",
        "Public/AudioObject/AudioDevice/AudioDevice+Static.swift",
        "Public/AudioObject/AudioDevice/AudioDevice+Stream.swift",
        "Public/AudioObject/AudioDevice/AudioDevice+VirtualMainOutput.swift",
        "Public/AudioObject/AudioDevice/AudioDevice+VolumeConversion.swift",
        "Public/AudioObject/AudioDevice/AudioDevice.swift",
        "Public/AudioObject/AudioDevice/Properties/AudioDevice+Aggregate.swift",
        "Public/AudioObject/AudioDevice/Properties/AudioDevice+Channel.swift",
        "Public/AudioObject/AudioDevice/Properties/AudioDevice+ClockSource.swift",
        "Public/AudioObject/AudioDevice/Properties/AudioDevice+GeneralInformation.swift",
        "Public/AudioObject/AudioDevice/Properties/AudioDevice+SampleRate.swift",
        "Public/AudioObject/AudioDevice/SampleRateState.swift",
        "Public/AudioObject/AudioDevice/SplitAudioDevice.swift",
        "Public/AudioObject/AudioObjectOwner.swift",
        "Public/AudioObject/AudioStream+Properties.swift",
        "Public/AudioObject/AudioStream.swift",
        "Public/AudioObject/Model/AudioObjectModel+Static.swift",
        "Public/AudioObject/Model/AudioObjectModel.swift",
        "Public/AudioObject/Model/AudioPropertyListenerModel.swift",
        "Public/Definitions/Channels/AudioDeviceNamedChannel.swift",
        "Public/Definitions/Channels/Scope.swift",
        "Public/Definitions/Channels/StereoPair.swift",
        "Public/Definitions/DefaultSelectorType.swift",
        "Public/Definitions/DeviceStatusEvent.swift",
        "Public/Definitions/TerminalType.swift",
        "Public/Definitions/TransportType.swift",
        "Public/Definitions/VolumeInfo.swift",
        "Public/Notifications/AudioDeviceNotification.swift",
        "Public/Notifications/AudioHardwareNotification.swift",
        "Public/Notifications/AudioStreamNotification.swift",
        "Public/Notifications/Notification.Name+.swift",
        "Public/Notifications/PropertyAddressNotification.swift"
      ],
      "type" : "library"
    }
  ],
  "tools_version" : "6.2"
}
{
  "workspace" : {
    "name" : "spi-builder-workspace",
    "schemes" : [
      "spfk-audio-hardware",
      "swift-data-parsing",
      "swift-extensions"
    ]
  }
}
2026-04-27 13:22:34.719 xcodebuild[1139:6252] [MT] IDERunDestination: Supported platforms for the buildables in the current scheme is empty.
{
  "workspace" : {
    "name" : "spi-builder-workspace",
    "schemes" : [
      "spfk-audio-hardware",
      "swift-data-parsing",
      "swift-extensions"
    ]
  }
}
2026-04-27 13:22:35.919 xcodebuild[1165:6364] [MT] IDERunDestination: Supported platforms for the buildables in the current scheme is empty.
Running build ...
env DEVELOPER_DIR=/Applications/Xcode-26.4.0.app xcrun xcodebuild -IDEClonedSourcePackagesDirPathOverride=$PWD/.dependencies -skipMacroValidation -skipPackagePluginValidation -derivedDataPath $PWD/.derivedData build -scheme spfk-audio-hardware -destination generic/platform=iOS
Command line invocation:
    /Applications/Xcode-26.4.0.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 spfk-audio-hardware -destination generic/platform=iOS
Resolve Package Graph
Resolved source packages:
  swift-async-algorithms: https://github.com/apple/swift-async-algorithms @ 1.1.3
  spfk-audio-hardware: /Users/admin/builder/spi-builder-workspace
  swift-numerics: https://github.com/apple/swift-numerics @ 1.1.1
  spfk-testing: https://github.com/ryanfrancesconi/spfk-testing @ 0.0.13
  swift-extensions: https://github.com/orchetect/swift-extensions @ 2.1.7
  spfk-base: https://github.com/ryanfrancesconi/spfk-base @ 0.0.12
  swift-collections: https://github.com/apple/swift-collections @ 1.4.1
  swift-data-parsing: https://github.com/orchetect/swift-data-parsing @ 0.1.2
ComputePackagePrebuildTargetDependencyGraph
Prepare packages
CreateBuildRequest
SendProjectDescription
CreateBuildOperation
ComputeTargetDependencyGraph
note: Building targets in dependency order
note: Target dependency graph (28 targets)
    Target 'SPFKAudioHardware' in project 'spfk-audio-hardware'
        ➜ Explicit dependency on target 'SPFKAudioHardware' in project 'spfk-audio-hardware'
        ➜ Explicit dependency on target 'SPFKBase' in project 'spfk-base'
    Target 'SPFKAudioHardware' in project 'spfk-audio-hardware'
        ➜ Explicit dependency on target 'SPFKBase' in project 'spfk-base'
    Target 'SPFKBase' in project 'spfk-base'
        ➜ Explicit dependency on target 'SPFKBase' in project 'spfk-base'
        ➜ Explicit dependency on target 'SPFKBaseC' in project 'spfk-base'
        ➜ Explicit dependency on target 'SwiftExtensions' in project 'swift-extensions'
        ➜ Explicit dependency on target 'Numerics' in project 'swift-numerics'
        ➜ Explicit dependency on target 'Collections' in project 'swift-collections'
        ➜ Explicit dependency on target 'AsyncAlgorithms' in project 'swift-async-algorithms'
    Target 'SPFKBase' in project 'spfk-base'
        ➜ Explicit dependency on target 'SPFKBaseC' in project 'spfk-base'
        ➜ Explicit dependency on target 'SwiftExtensions' in project 'swift-extensions'
        ➜ Explicit dependency on target 'Numerics' in project 'swift-numerics'
        ➜ Explicit dependency on target 'Collections' in project 'swift-collections'
        ➜ Explicit dependency on target 'AsyncAlgorithms' in project 'swift-async-algorithms'
    Target 'AsyncAlgorithms' in project 'swift-async-algorithms'
        ➜ Explicit dependency on target 'AsyncAlgorithms' in project 'swift-async-algorithms'
        ➜ Explicit dependency on target 'OrderedCollections' in project 'swift-collections'
        ➜ Explicit dependency on target 'DequeModule' in project 'swift-collections'
    Target 'AsyncAlgorithms' in project 'swift-async-algorithms'
        ➜ Explicit dependency on target 'OrderedCollections' in project 'swift-collections'
        ➜ Explicit dependency on target 'DequeModule' in project 'swift-collections'
    Target 'DequeModule' in project 'swift-collections'
        ➜ Explicit dependency on target 'DequeModule' in project 'swift-collections'
        ➜ Explicit dependency on target 'InternalCollectionsUtilities' in project 'swift-collections'
        ➜ Explicit dependency on target 'ContainersPreview' in project 'swift-collections'
    Target 'OrderedCollections' in project 'swift-collections'
        ➜ Explicit dependency on target 'OrderedCollections' in project 'swift-collections'
        ➜ Explicit dependency on target 'InternalCollectionsUtilities' in project 'swift-collections'
    Target 'Collections' in project 'swift-collections'
        ➜ Explicit dependency on target 'Collections' in project 'swift-collections'
        ➜ Explicit dependency on target 'InternalCollectionsUtilities' in project 'swift-collections'
        ➜ Explicit dependency on target 'BitCollections' in project 'swift-collections'
        ➜ Explicit dependency on target 'ContainersPreview' in project 'swift-collections'
        ➜ Explicit dependency on target 'DequeModule' in project 'swift-collections'
        ➜ Explicit dependency on target 'HashTreeCollections' in project 'swift-collections'
        ➜ Explicit dependency on target 'HeapModule' in project 'swift-collections'
        ➜ Explicit dependency on target 'OrderedCollections' in project 'swift-collections'
        ➜ Explicit dependency on target '_RopeModule' in project 'swift-collections'
    Target 'Collections' in project 'swift-collections'
        ➜ Explicit dependency on target 'InternalCollectionsUtilities' in project 'swift-collections'
        ➜ Explicit dependency on target 'BitCollections' in project 'swift-collections'
        ➜ Explicit dependency on target 'ContainersPreview' in project 'swift-collections'
        ➜ Explicit dependency on target 'DequeModule' in project 'swift-collections'
        ➜ Explicit dependency on target 'HashTreeCollections' in project 'swift-collections'
        ➜ Explicit dependency on target 'HeapModule' in project 'swift-collections'
        ➜ Explicit dependency on target 'OrderedCollections' in project 'swift-collections'
        ➜ Explicit dependency on target '_RopeModule' in project 'swift-collections'
    Target '_RopeModule' in project 'swift-collections'
        ➜ Explicit dependency on target 'InternalCollectionsUtilities' in project 'swift-collections'
    Target 'OrderedCollections' in project 'swift-collections'
        ➜ Explicit dependency on target 'InternalCollectionsUtilities' in project 'swift-collections'
    Target 'HeapModule' in project 'swift-collections'
        ➜ Explicit dependency on target 'InternalCollectionsUtilities' in project 'swift-collections'
    Target 'HashTreeCollections' in project 'swift-collections'
        ➜ Explicit dependency on target 'InternalCollectionsUtilities' in project 'swift-collections'
    Target 'DequeModule' in project 'swift-collections'
        ➜ Explicit dependency on target 'InternalCollectionsUtilities' in project 'swift-collections'
        ➜ Explicit dependency on target 'ContainersPreview' in project 'swift-collections'
    Target 'ContainersPreview' in project 'swift-collections'
        ➜ Explicit dependency on target 'InternalCollectionsUtilities' in project 'swift-collections'
    Target 'BitCollections' in project 'swift-collections'
        ➜ Explicit dependency on target 'InternalCollectionsUtilities' in project 'swift-collections'
    Target 'InternalCollectionsUtilities' in project 'swift-collections' (no dependencies)
    Target 'Numerics' in project 'swift-numerics'
        ➜ Explicit dependency on target 'Numerics' in project 'swift-numerics'
        ➜ Explicit dependency on target '_NumericsShims' in project 'swift-numerics'
        ➜ Explicit dependency on target 'RealModule' in project 'swift-numerics'
        ➜ Explicit dependency on target 'ComplexModule' in project 'swift-numerics'
    Target 'Numerics' in project 'swift-numerics'
        ➜ Explicit dependency on target '_NumericsShims' in project 'swift-numerics'
        ➜ Explicit dependency on target 'RealModule' in project 'swift-numerics'
        ➜ Explicit dependency on target 'ComplexModule' in project 'swift-numerics'
    Target 'ComplexModule' in project 'swift-numerics'
        ➜ Explicit dependency on target '_NumericsShims' in project 'swift-numerics'
        ➜ Explicit dependency on target 'RealModule' in project 'swift-numerics'
    Target 'RealModule' in project 'swift-numerics'
        ➜ Explicit dependency on target '_NumericsShims' in project 'swift-numerics'
    Target '_NumericsShims' in project 'swift-numerics' (no dependencies)
    Target 'SwiftExtensions' in project 'swift-extensions'
        ➜ Explicit dependency on target 'SwiftExtensions' in project 'swift-extensions'
        ➜ Explicit dependency on target 'SwiftDataParsing' in project 'swift-data-parsing'
    Target 'SwiftExtensions' in project 'swift-extensions'
        ➜ Explicit dependency on target 'SwiftDataParsing' in project 'swift-data-parsing'
    Target 'SwiftDataParsing' in project 'swift-data-parsing'
        ➜ Explicit dependency on target 'SwiftDataParsing' in project 'swift-data-parsing'
    Target 'SwiftDataParsing' in project 'swift-data-parsing' (no dependencies)
    Target 'SPFKBaseC' in project 'spfk-base' (no dependencies)
GatherProvisioningInputs
CreateBuildDescription
ExecuteExternalTool /Applications/Xcode-26.4.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang -v -E -dM -arch arm64 -isysroot /Applications/Xcode-26.4.0.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS26.4.sdk -x objective-c -c /dev/null
ExecuteExternalTool /Applications/Xcode-26.4.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang -v -E -dM -arch arm64 -isysroot /Applications/Xcode-26.4.0.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS26.4.sdk -x c -c /dev/null
ExecuteExternalTool /Applications/Xcode-26.4.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/swiftc --version
ExecuteExternalTool /Applications/Xcode-26.4.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang -v -E -dM -isysroot /Applications/Xcode-26.4.0.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS26.4.sdk -x c -c /dev/null
ExecuteExternalTool /Applications/Xcode-26.4.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/ld -version_details
ReadFileContents /Applications/Xcode-26.4.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/share/docc/features.json
Build description signature: 77c1a9e8939031596ac713913f6463b6
Build description path: /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/XCBuildData/77c1a9e8939031596ac713913f6463b6.xcbuilddata
error: The package product 'SPFKBase' requires minimum platform version 16.0 for the iOS platform, but this target supports 12.0 (in target 'SPFKAudioHardware' from project 'spfk-audio-hardware')
2026-04-27 13:22:37.130 xcodebuild[1189:6465] [MT] IDERunDestination: Supported platforms for the buildables in the current scheme is empty.
** BUILD FAILED **
The following build commands failed:
	Building workspace spi-builder-workspace with scheme spfk-audio-hardware
(1 failure)
BUILD FAILURE 6.3 iOS