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Build Information

Failed to build Flow, reference master (b452ec), with Swift 6.4 for iOS using Xcode 27.0 on 21 Sep 2026 21:06:19 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 Flow -destination generic/platform=iOS

Build Log

========================================
RunAll
========================================
Builder version: 5.1.0
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/iZettle/Flow.git
Reference: master
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/iZettle/Flow
 * branch            master     -> FETCH_HEAD
 * [new branch]      master     -> origin/master
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 master
========================================
Build
========================================
Selected platform:         iOS
Swift version:             6.4
Building package at path:  $PWD
https://github.com/iZettle/Flow.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
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-27.0.0-Release.Candidate.app xcrun xcodebuild -IDEClonedSourcePackagesDirPathOverride=$PWD/.dependencies -skipMacroValidation -skipPackagePluginValidation -derivedDataPath $PWD/.derivedData build -scheme Flow -destination generic/platform=iOS
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 Flow -destination generic/platform=iOS
ComputePackagePrebuildTargetDependencyGraph
Prepare packages
CreateBuildRequest
SendProjectDescription
CreateBuildOperation
ComputeTargetDependencyGraph
note: Building targets in dependency order
note: Target dependency graph (1 target)
    Target 'Flow' in project 'Flow' (no dependencies)
GatherProvisioningInputs
CreateBuildDescription
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/iPhoneOS.platform/Developer/SDKs/iPhoneOS27.0.sdk -x c -c /dev/null
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/iPhoneOS.platform/Developer/SDKs/iPhoneOS27.0.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/ld -version_details
Build description signature: 553c957586ca77c966aea3a3ca3c6561
Build description path: /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/XCBuildData/553c957586ca77c966aea3a3ca3c6561.xcbuilddata
/Users/admin/builder/spi-builder-workspace/Flow.xcodeproj: error: The iOS deployment target 'IPHONEOS_DEPLOYMENT_TARGET' is set to 14.0, but the range of supported deployment target versions is 15.0 to 27.0.x. (in target 'Flow' from project 'Flow')
warning: Run script build phase 'Run Script' will be run during every build because it does not specify any outputs. To address this issue, either add output dependencies to the script phase, or configure it to run in every build by unchecking "Based on dependency analysis" in the script phase. (in target 'Flow' from project 'Flow')
** BUILD FAILED **
The following build commands failed:
	Building project Flow with scheme Flow
(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
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-27.0.0-Release.Candidate.app xcrun xcodebuild -IDEClonedSourcePackagesDirPathOverride=$PWD/.dependencies -skipMacroValidation -skipPackagePluginValidation -derivedDataPath $PWD/.derivedData build -scheme Flow -destination generic/platform=iOS
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 Flow -destination generic/platform=iOS
ComputePackagePrebuildTargetDependencyGraph
Prepare packages
CreateBuildRequest
SendProjectDescription
CreateBuildOperation
ComputeTargetDependencyGraph
note: Building targets in dependency order
note: Target dependency graph (1 target)
    Target 'Flow' in project 'Flow' (no dependencies)
GatherProvisioningInputs
CreateBuildDescription
/Users/admin/builder/spi-builder-workspace/Flow.xcodeproj: error: The iOS deployment target 'IPHONEOS_DEPLOYMENT_TARGET' is set to 14.0, but the range of supported deployment target versions is 15.0 to 27.0.x. (in target 'Flow' from project 'Flow')
warning: Run script build phase 'Run Script' will be run during every build because it does not specify any outputs. To address this issue, either add output dependencies to the script phase, or configure it to run in every build by unchecking "Based on dependency analysis" in the script phase. (in target 'Flow' from project 'Flow')
** BUILD FAILED **
The following build commands failed:
	Building project Flow with scheme Flow
(1 failure)
BUILD FAILURE 6.4 iOS