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Build Information

Failed to build Flow with Swift 6.3 for watchOS using Xcode 26.4.

Build Command

Build command unavailable

Build Log

========================================
RunAll
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Builder version: 4.70.0
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/iZettle/Flow.git
Reference: 1.13.0
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/iZettle/Flow
 * tag               1.13.0     -> FETCH_HEAD
HEAD is now at b452ec9 Merge pull request #130 from iZettle/bump-ios-min-deployment-target
Cloned https://github.com/iZettle/Flow.git
Revision (git rev-parse @):
b452ec9f7f525d24d99d5c01ef5853ab28223d23
SUCCESS checkout https://github.com/iZettle/Flow.git at 1.13.0
========================================
Build
========================================
Selected platform:         watchOS
Swift version:             6.3
Building package at path:  $PWD
https://github.com/iZettle/Flow.git
Command line invocation:
    /Applications/Xcode-26.4.0.app/Contents/Developer/usr/bin/xcodebuild -IDEClonedSourcePackagesDirPathOverride=/Users/admin/builder/spi-builder-workspace/.dependencies -resolvePackageDependencies
resolved source packages:
{
  "dependencies" : [
  ],
  "manifest_display_name" : "Flow",
  "name" : "Flow",
  "path" : "/Users/admin/builder/spi-builder-workspace",
  "platforms" : [
  ],
  "products" : [
    {
      "name" : "Flow",
      "targets" : [
        "Flow"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "FlowTests",
      "module_type" : "SwiftTarget",
      "name" : "FlowTests",
      "path" : "FlowTests",
      "sources" : [
        "CallbackerTests.swift",
        "DelegateTests.swift",
        "EitherTests.swift",
        "EventListenerTests.swift",
        "Future+CombineTests.swift",
        "FutureAdditionsTests.swift",
        "FutureBasicTests.swift",
        "FutureQueueTests.swift",
        "FutureRepeatTests.swift",
        "FutureSchedulingTests.swift",
        "FutureSplitTests.swift",
        "FutureUtilitiesTests.swift",
        "MemoryUtilsTests.swift",
        "MultipleContinuationsTests.swift",
        "PrefetchTests.swift",
        "PropertyTests.swift",
        "RecursiveTests.swift",
        "Signal+CombineTests.swift",
        "SignalConcurrenceyTests.swift",
        "SignalProviderTests+Internal.swift",
        "SignalProviderTests.swift",
        "SignalTests.swift",
        "TestUtilities.swift",
        "UIViewSignalTests.swift"
      ],
      "target_dependencies" : [
        "Flow"
      ],
      "type" : "test"
    },
    {
      "c99name" : "Flow",
      "module_type" : "SwiftTarget",
      "name" : "Flow",
      "path" : "Flow",
      "product_memberships" : [
        "Flow"
      ],
      "sources" : [
        "Bridges/CancelBag.swift",
        "Bridges/Disposable+Cancellable.swift",
        "Bridges/Future+Combine.swift",
        "Bridges/Publisher+Utilities.swift",
        "Bridges/Signal+Combine.swift",
        "Bridges/Signal+SwiftUI.swift",
        "Callbacker.swift",
        "CoreSignal.swift",
        "Delegate.swift",
        "Disposable.swift",
        "Either.swift",
        "Enablable.swift",
        "Event.swift",
        "EventType.swift",
        "FiniteSignal.swift",
        "Future+Additions.swift",
        "Future+Combiners.swift",
        "Future+Signal.swift",
        "Future.swift",
        "FutureQueue.swift",
        "HasEventListeners.swift",
        "Locking.swift",
        "OrderedCallbacker.swift",
        "ReadSignal.swift",
        "ReadWriteSignal.swift",
        "Recursive.swift",
        "Result.swift",
        "Scheduler.swift",
        "Signal+Combiners.swift",
        "Signal+Construction.swift",
        "Signal+Debug.swift",
        "Signal+KeyValueObserving.swift",
        "Signal+Listeners.swift",
        "Signal+Scheduling.swift",
        "Signal+Transforms.swift",
        "Signal+Utilities.swift",
        "Signal.swift",
        "SignalProvider.swift",
        "TargetActionable.swift",
        "UIControls+Extensions.swift",
        "UIView+EditingMenu.swift",
        "UIView+Signal.swift",
        "Utilities.swift"
      ],
      "type" : "library"
    }
  ],
  "tools_version" : "5.0"
}
{
  "project" : {
    "configurations" : [
      "Debug",
      "Release"
    ],
    "name" : "Flow",
    "schemes" : [
      "Flow"
    ],
    "targets" : [
      "Flow",
      "FlowTests"
    ]
  }
}
Running build ...
env DEVELOPER_DIR=/Applications/Xcode-26.4.0.app xcrun xcodebuild -IDEClonedSourcePackagesDirPathOverride=$PWD/.dependencies -skipMacroValidation -skipPackagePluginValidation -derivedDataPath $PWD/.derivedData build -scheme Flow -destination generic/platform=watchOS
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 Flow -destination generic/platform=watchOS
2026-04-21 14:46:51.435 xcodebuild[624:3803] Writing error result bundle to /var/folders/xq/y_g06wb113726d38xsyx71_h0000gn/T/ResultBundle_2026-21-04_14-46-0051.xcresult
xcodebuild: error: Unable to find a destination matching the provided destination specifier:
		{ generic:1, platform:watchOS }
	Available destinations for the "Flow" scheme:
		{ platform:macOS, arch:arm64, id:918b76c4be13e6010df15de0b440abe74144ca96, name:My Mac }
		{ platform:macOS, arch:x86_64, id:918b76c4be13e6010df15de0b440abe74144ca96, name:My Mac }
		{ platform:iOS, id:dvtdevice-DVTiPhonePlaceholder-iphoneos:placeholder, name:Any iOS Device }
		{ platform:iOS Simulator, id:dvtdevice-DVTiOSDeviceSimulatorPlaceholder-iphonesimulator:placeholder, name:Any iOS Simulator Device }
		{ platform:macOS, name:Any Mac }
		{ platform:tvOS, id:dvtdevice-DVTiOSDevicePlaceholder-appletvos:placeholder, name:Any tvOS Device }
		{ platform:tvOS Simulator, id:dvtdevice-DVTiOSDeviceSimulatorPlaceholder-appletvsimulator:placeholder, name:Any tvOS Simulator Device }
		{ platform:tvOS Simulator, arch:arm64, id:EB41DD69-50EA-4A70-A0F3-B1F466EA63FD, OS:26.4, name:Apple TV }
		{ platform:tvOS Simulator, arch:arm64, id:18F5F773-9DDF-4D28-BE08-2EE01B9FE04D, OS:26.4, name:Apple TV 4K (3rd generation) }
		{ platform:tvOS Simulator, arch:arm64, id:8753D4DB-0EAD-4642-AE61-CF841A16BD50, OS:26.4, name:Apple TV 4K (3rd generation) (at 1080p) }
		{ platform:iOS Simulator, arch:arm64, id:ED6D44FB-E2CB-4753-A0FD-FD31596FEC80, OS:26.4, name:iPad (A16) }
		{ platform:iOS Simulator, arch:arm64, id:BCEC8334-6B95-4648-94D6-7CF60E7EFD82, OS:26.4, name:iPad Air 11-inch (M4) }
		{ platform:iOS Simulator, arch:arm64, id:45BB79BC-7646-4F19-8D06-DCBD411E98C0, OS:26.4, name:iPad Air 13-inch (M4) }
		{ platform:iOS Simulator, arch:arm64, id:1C3FCF57-F496-44A8-91C7-42D1FBB47B6C, OS:26.4, name:iPad Pro 11-inch (M5) }
		{ platform:iOS Simulator, arch:arm64, id:78ECA907-6BCE-4638-957D-C2669C42F4B7, OS:26.4, name:iPad Pro 13-inch (M5) }
		{ platform:iOS Simulator, arch:arm64, id:4E377BD7-D244-4C67-AA71-C9334B19DD83, OS:26.4, name:iPad mini (A17 Pro) }
		{ platform:iOS Simulator, arch:arm64, id:5E07715F-630C-4684-A995-1B2EE7BD6598, OS:26.4, name:iPhone 17 }
		{ platform:iOS Simulator, arch:arm64, id:C413B30A-952C-4663-B1C5-64938D82C4AB, OS:26.4, name:iPhone 17 Pro }
		{ platform:iOS Simulator, arch:arm64, id:407D5276-A344-478A-B9C8-EB27CE780CB6, OS:26.4, name:iPhone 17 Pro Max }
		{ platform:iOS Simulator, arch:arm64, id:720F5E9E-7490-4565-8AC1-7A6A63551BBC, OS:26.4, name:iPhone 17e }
		{ platform:iOS Simulator, arch:arm64, id:51B1D6CF-85BF-4B9E-ACCF-FD3A9AD197FF, OS:26.4, name:iPhone Air }
INFRASTRUCTURE ERROR (status: destinationUnavailable