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Track the adoption of Swift 6 strict concurrency checks for data race safety. How many packages are Ready for Swift 6?

Build Information

Failed to build Mobius, reference master (315a69), with Swift 6.0 for watchOS using Xcode 16.0 on 4 Nov 2024 09:05:37 UTC.

Build Command

env DEVELOPER_DIR=/Applications/Xcode-16.1.0.app xcrun xcodebuild -IDEClonedSourcePackagesDirPathOverride=$PWD/.dependencies -skipMacroValidation -skipPackagePluginValidation -derivedDataPath $PWD/.derivedData build -scheme Mobius-Package -destination generic/platform=watchOS OTHER_SWIFT_FLAGS=-stats-output-dir .stats -strict-concurrency=complete

Build Log

========================================
RunAll
========================================
Builder version: 4.56.0
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/spotify/Mobius.swift.git
Reference: master
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/spotify/Mobius.swift
 * branch            master     -> FETCH_HEAD
 * [new branch]      master     -> origin/master
HEAD is now at 315a69a Update copyright (#208)
Cloned https://github.com/spotify/Mobius.swift.git
Revision (git rev-parse @):
315a69a3dbf85eccd12663d25e37361b6a7e1e03
SUCCESS checkout https://github.com/spotify/Mobius.swift.git at master
========================================
Build
========================================
Selected platform:         watchOS
Swift version:             6.0
Building package at path:  $PWD
https://github.com/spotify/Mobius.swift.git
Command line invocation:
    /Applications/Xcode-16.1.0.app/Contents/Developer/usr/bin/xcodebuild -IDEClonedSourcePackagesDirPathOverride=/Users/admin/builder/spi-builder-workspace/.dependencies -resolvePackageDependencies
User defaults from command line:
    IDEClonedSourcePackagesDirPathOverride = /Users/admin/builder/spi-builder-workspace/.dependencies
    IDEPackageSupportUseBuiltinSCM = YES
Resolve Package Graph
Fetching from https://github.com/Quick/Quick
Fetching from https://github.com/Quick/Nimble
Fetching from https://github.com/pointfreeco/swift-case-paths
Fetching from https://github.com/mattgallagher/CwlPreconditionTesting.git
Fetching from https://github.com/mattgallagher/CwlCatchException.git
Creating working copy of package ‘CwlCatchException’
Checking out 2.2.1 of package ‘CwlCatchException’
Creating working copy of package ‘Nimble’
Checking out 10.0.0 of package ‘Nimble’
Creating working copy of package ‘CwlPreconditionTesting’
Checking out 2.2.2 of package ‘CwlPreconditionTesting’
Creating working copy of package ‘Quick’
Checking out 5.0.1 of package ‘Quick’
Creating working copy of package ‘swift-case-paths’
Checking out 0.10.1 of package ‘swift-case-paths’
Resolve Package Graph
Resolved source packages:
  CwlPreconditionTesting: https://github.com/mattgallagher/CwlPreconditionTesting.git @ 2.2.2
  Mobius: /Users/admin/builder/spi-builder-workspace
  CwlCatchException: https://github.com/mattgallagher/CwlCatchException.git @ 2.2.1
  swift-case-paths: https://github.com/pointfreeco/swift-case-paths @ 0.10.1
  Quick: https://github.com/Quick/Quick @ 5.0.1
  Nimble: https://github.com/Quick/Nimble @ 10.0.0
resolved source packages: CwlPreconditionTesting, Mobius, CwlCatchException, swift-case-paths, Quick, Nimble
{
  "dependencies" : [
    {
      "identity" : "swift-case-paths",
      "requirement" : {
        "range" : [
          {
            "lower_bound" : "0.10.1",
            "upper_bound" : "0.11.0"
          }
        ]
      },
      "type" : "sourceControl",
      "url" : "https://github.com/pointfreeco/swift-case-paths"
    },
    {
      "identity" : "nimble",
      "requirement" : {
        "range" : [
          {
            "lower_bound" : "10.0.0",
            "upper_bound" : "11.0.0"
          }
        ]
      },
      "type" : "sourceControl",
      "url" : "https://github.com/Quick/Nimble"
    },
    {
      "identity" : "quick",
      "requirement" : {
        "range" : [
          {
            "lower_bound" : "5.0.1",
            "upper_bound" : "6.0.0"
          }
        ]
      },
      "type" : "sourceControl",
      "url" : "https://github.com/Quick/Quick"
    }
  ],
  "manifest_display_name" : "Mobius",
  "name" : "Mobius",
  "path" : "/Users/admin/builder/spi-builder-workspace",
  "platforms" : [
    {
      "name" : "ios",
      "version" : "10.0"
    },
    {
      "name" : "macos",
      "version" : "10.12"
    },
    {
      "name" : "tvos",
      "version" : "10.0"
    },
    {
      "name" : "watchos",
      "version" : "3.0"
    }
  ],
  "products" : [
    {
      "name" : "MobiusCore",
      "targets" : [
        "MobiusCore"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    },
    {
      "name" : "MobiusExtras",
      "targets" : [
        "MobiusExtras"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    },
    {
      "name" : "MobiusNimble",
      "targets" : [
        "MobiusNimble"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    },
    {
      "name" : "MobiusTest",
      "targets" : [
        "MobiusTest"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    }
  ],
  "swift_languages_versions" : [
    "5"
  ],
  "targets" : [
    {
      "c99name" : "MobiusThrowableAssertion",
      "module_type" : "ClangTarget",
      "name" : "MobiusThrowableAssertion",
      "path" : "MobiusThrowableAssertion/Source",
      "sources" : [
        "MobiusThrowableAssertion.m"
      ],
      "type" : "library"
    },
    {
      "c99name" : "MobiusTestTests",
      "module_type" : "SwiftTarget",
      "name" : "MobiusTestTests",
      "path" : "MobiusTest/Test",
      "product_dependencies" : [
        "Quick",
        "Nimble"
      ],
      "sources" : [
        "DebugDiffTests.swift",
        "FirstMatchersTests.swift",
        "InitSpecTests.swift",
        "NextMatchersTests.swift",
        "TestUtil.swift",
        "UpdateSpecTests.swift"
      ],
      "target_dependencies" : [
        "MobiusTest"
      ],
      "type" : "test"
    },
    {
      "c99name" : "MobiusTest",
      "module_type" : "SwiftTarget",
      "name" : "MobiusTest",
      "path" : "MobiusTest/Source",
      "product_memberships" : [
        "MobiusNimble",
        "MobiusTest"
      ],
      "sources" : [
        "DebugDiff.swift",
        "FirstMatchers.swift",
        "InitSpec.swift",
        "MatcherUtils.swift",
        "NextMatchers.swift",
        "SimpleDiff.swift",
        "UpdateSpec.swift"
      ],
      "target_dependencies" : [
        "MobiusCore"
      ],
      "type" : "library"
    },
    {
      "c99name" : "MobiusNimbleTests",
      "module_type" : "SwiftTarget",
      "name" : "MobiusNimbleTests",
      "path" : "MobiusNimble/Test",
      "product_dependencies" : [
        "Quick"
      ],
      "sources" : [
        "NimbleFirstMatchersTests.swift",
        "NimbleNextMatchersTests.swift",
        "TestUtil.swift"
      ],
      "target_dependencies" : [
        "MobiusNimble"
      ],
      "type" : "test"
    },
    {
      "c99name" : "MobiusNimble",
      "module_type" : "SwiftTarget",
      "name" : "MobiusNimble",
      "path" : "MobiusNimble/Source",
      "product_dependencies" : [
        "Nimble"
      ],
      "product_memberships" : [
        "MobiusNimble"
      ],
      "sources" : [
        "NimbleFirstMatchers.swift",
        "NimbleNextMatchers.swift"
      ],
      "target_dependencies" : [
        "MobiusCore",
        "MobiusTest"
      ],
      "type" : "library"
    },
    {
      "c99name" : "MobiusExtrasTests",
      "module_type" : "SwiftTarget",
      "name" : "MobiusExtrasTests",
      "path" : "MobiusExtras/Test",
      "product_dependencies" : [
        "Nimble",
        "Quick"
      ],
      "sources" : [
        "ConnectableClassTests.swift",
        "ConnectableContramapTests.swift",
        "ConnectableMapTests.swift",
        "CopyableTests.swift",
        "EventSource+ExtensionsTests.swift",
        "WikiTutorialTest.swift"
      ],
      "target_dependencies" : [
        "MobiusCore",
        "MobiusExtras",
        "MobiusThrowableAssertion"
      ],
      "type" : "test"
    },
    {
      "c99name" : "MobiusExtras",
      "module_type" : "SwiftTarget",
      "name" : "MobiusExtras",
      "path" : "MobiusExtras/Source",
      "product_memberships" : [
        "MobiusExtras"
      ],
      "sources" : [
        "BeginnerLoop.swift",
        "ConnectableClass.swift",
        "ConnectableContramap.swift",
        "ConnectableMap.swift",
        "Copyable.swift",
        "EventSourceMap.swift",
        "SimpleLogger.swift"
      ],
      "target_dependencies" : [
        "MobiusCore"
      ],
      "type" : "library"
    },
    {
      "c99name" : "MobiusCoreTests",
      "module_type" : "SwiftTarget",
      "name" : "MobiusCoreTests",
      "path" : "MobiusCore/Test",
      "product_dependencies" : [
        "Nimble",
        "Quick"
      ],
      "sources" : [
        "AnonymousDisposableTests.swift",
        "AnyConnectionTests.swift",
        "AnyMobiusLoggerTests.swift",
        "AsyncDispatchQueueConnectableTests.swift",
        "CompositeDisposableTests.swift",
        "ConnectablePublisherTests.swift",
        "EffectHandlers/AnyEffectHandlerTests.swift",
        "EffectHandlers/CallbackTests.swift",
        "EffectHandlers/EffectHandlerTests.swift",
        "EffectHandlers/EffectRouterDSLTests.swift",
        "EffectHandlers/EffectRouterTests.swift",
        "EffectHandlers/EnumRouteTests.swift",
        "EventRouterDisposalLogicalRaceRegressionTest.swift",
        "EventSources/AnyEventSourceTests.swift",
        "EventSources/CompositeEventSourceBuilderTests.swift",
        "FirstTests.swift",
        "LoggingInitiateTests.swift",
        "LoggingUpdateTests.swift",
        "MobiusControllerTests.swift",
        "MobiusHooksTests.swift",
        "MobiusIntegrationTests.swift",
        "MobiusLoopTests.swift",
        "NextTests.swift",
        "NonReentrancyTests.swift",
        "Task+DisposableTests.swift",
        "TestingErrorHandler.swift",
        "TestingUtil.swift",
        "WorkBagTests.swift"
      ],
      "target_dependencies" : [
        "MobiusCore",
        "MobiusThrowableAssertion"
      ],
      "type" : "test"
    },
    {
      "c99name" : "MobiusCore",
      "module_type" : "SwiftTarget",
      "name" : "MobiusCore",
      "path" : "MobiusCore/Source",
      "product_dependencies" : [
        "CasePaths"
      ],
      "product_memberships" : [
        "MobiusCore",
        "MobiusExtras",
        "MobiusNimble",
        "MobiusTest"
      ],
      "sources" : [
        "AsyncDispatchQueueConnectable.swift",
        "AsyncStartStopStateMachine.swift",
        "ConcurrentAccessDetector.swift",
        "Connectable.swift",
        "ConnectablePublisher.swift",
        "Connection.swift",
        "Consumer.swift",
        "Disposables/AnonymousDisposable.swift",
        "Disposables/CompositeDisposable.swift",
        "Disposables/Disposable.swift",
        "Disposables/Task+Disposable.swift",
        "EffectHandlers/EffectCallback.swift",
        "EffectHandlers/EffectExecutor.swift",
        "EffectHandlers/EffectHandler.swift",
        "EffectHandlers/EffectRouter.swift",
        "EffectHandlers/EffectRouterDSL.swift",
        "EffectHandlers/EnumRoute.swift",
        "EffectHandlers/ThreadSafeConnectable.swift",
        "EventSources/AnyEventSource.swift",
        "EventSources/CompositeEventSourceBuilder.swift",
        "EventSources/EventSource.swift",
        "First.swift",
        "Lock.swift",
        "LoggingAdaptors.swift",
        "Mobius.swift",
        "MobiusController.swift",
        "MobiusHooks.swift",
        "MobiusLogger.swift",
        "MobiusLoop.swift",
        "Next.swift",
        "WorkBag.swift"
      ],
      "type" : "library"
    }
  ],
  "tools_version" : "5.0"
}
{
  "workspace" : {
    "name" : "spi-builder-workspace",
    "schemes" : [
      "Mobius-Package",
      "MobiusCore",
      "MobiusExtras",
      "MobiusNimble",
      "MobiusTest"
    ]
  }
}
Running build ...
env DEVELOPER_DIR=/Applications/Xcode-16.1.0.app xcrun xcodebuild -IDEClonedSourcePackagesDirPathOverride=$PWD/.dependencies -skipMacroValidation -skipPackagePluginValidation -derivedDataPath $PWD/.derivedData build -scheme Mobius-Package -destination generic/platform=watchOS OTHER_SWIFT_FLAGS=-stats-output-dir .stats -strict-concurrency=complete
Command line invocation:
    /Applications/Xcode-16.1.0.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 Mobius-Package -destination generic/platform=watchOS "OTHER_SWIFT_FLAGS=-stats-output-dir .stats -strict-concurrency=complete"
User defaults from command line:
    IDEClonedSourcePackagesDirPathOverride = /Users/admin/builder/spi-builder-workspace/.dependencies
    IDEDerivedDataPathOverride = /Users/admin/builder/spi-builder-workspace/.derivedData
    IDEPackageSupportUseBuiltinSCM = YES
Build settings from command line:
    OTHER_SWIFT_FLAGS = -stats-output-dir .stats -strict-concurrency=complete
Resolve Package Graph
Resolve Package Graph
Resolved source packages:
  CwlPreconditionTesting: https://github.com/mattgallagher/CwlPreconditionTesting.git @ 2.2.2
  Quick: https://github.com/Quick/Quick @ 5.0.1
  swift-case-paths: https://github.com/pointfreeco/swift-case-paths @ 0.10.1
  Nimble: https://github.com/Quick/Nimble @ 10.0.0
  CwlCatchException: https://github.com/mattgallagher/CwlCatchException.git @ 2.2.1
  Mobius: /Users/admin/builder/spi-builder-workspace
Prepare packages
ComputeTargetDependencyGraph
note: Building targets in dependency order
note: Target dependency graph (12 targets)
    Target 'MobiusTest' in project 'Mobius'
        ➜ Explicit dependency on target 'MobiusTest' in project 'Mobius'
        ➜ Explicit dependency on target 'MobiusCore' in project 'Mobius'
        ➜ Explicit dependency on target 'CasePaths' in project 'swift-case-paths'
    Target 'MobiusNimble' in project 'Mobius'
        ➜ Explicit dependency on target 'MobiusNimble' in project 'Mobius'
        ➜ Explicit dependency on target 'MobiusCore' in project 'Mobius'
        ➜ Explicit dependency on target 'MobiusTest' in project 'Mobius'
        ➜ Explicit dependency on target 'CasePaths' in project 'swift-case-paths'
        ➜ Explicit dependency on target 'Nimble' in project 'Nimble'
    Target 'MobiusNimble' in project 'Mobius'
        ➜ Explicit dependency on target 'MobiusCore' in project 'Mobius'
        ➜ Explicit dependency on target 'MobiusTest' in project 'Mobius'
        ➜ Explicit dependency on target 'CasePaths' in project 'swift-case-paths'
        ➜ Explicit dependency on target 'Nimble' in project 'Nimble'
    Target 'Nimble' in project 'Nimble'
        ➜ Explicit dependency on target 'Nimble' in project 'Nimble'
    Target 'Nimble' in project 'Nimble' (no dependencies)
    Target 'MobiusTest' in project 'Mobius'
        ➜ Explicit dependency on target 'MobiusCore' in project 'Mobius'
        ➜ Explicit dependency on target 'CasePaths' in project 'swift-case-paths'
    Target 'MobiusExtras' in project 'Mobius'
        ➜ Explicit dependency on target 'MobiusExtras' in project 'Mobius'
        ➜ Explicit dependency on target 'MobiusCore' in project 'Mobius'
        ➜ Explicit dependency on target 'CasePaths' in project 'swift-case-paths'
    Target 'MobiusExtras' in project 'Mobius'
        ➜ Explicit dependency on target 'MobiusCore' in project 'Mobius'
        ➜ Explicit dependency on target 'CasePaths' in project 'swift-case-paths'
    Target 'MobiusCore' in project 'Mobius'
        ➜ Explicit dependency on target 'MobiusCore' in project 'Mobius'
        ➜ Explicit dependency on target 'CasePaths' in project 'swift-case-paths'
    Target 'MobiusCore' in project 'Mobius'
        ➜ Explicit dependency on target 'CasePaths' in project 'swift-case-paths'
    Target 'CasePaths' in project 'swift-case-paths'
        ➜ Explicit dependency on target 'CasePaths' in project 'swift-case-paths'
    Target 'CasePaths' in project 'swift-case-paths' (no dependencies)
GatherProvisioningInputs
CreateBuildDescription
ExecuteExternalTool /Applications/Xcode-16.1.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/swiftc --version
ExecuteExternalTool /Applications/Xcode-16.1.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang -v -E -dM -isysroot /Applications/Xcode-16.1.0.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS11.1.sdk -x c -c /dev/null
ExecuteExternalTool /Applications/Xcode-16.1.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/ld -version_details
Build description signature: 843761693df9ac0d01fa00765a3a4097
Build description path: /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/XCBuildData/843761693df9ac0d01fa00765a3a4097.xcbuilddata
error: The package product 'CasePaths' requires minimum platform version 5.0 for the watchOS platform, but this target supports 4.0 (in target 'MobiusTest' from project 'Mobius')
error: The package product 'CasePaths' requires minimum platform version 5.0 for the watchOS platform, but this target supports 4.0 (in target 'MobiusCore' from project 'Mobius')
error: The package product 'CasePaths' requires minimum platform version 5.0 for the watchOS platform, but this target supports 4.0 (in target 'MobiusNimble' from project 'Mobius')
error: The package product 'Nimble' requires minimum platform version 5.0 for the watchOS platform, but this target supports 4.0 (in target 'MobiusNimble' from project 'Mobius')
error: The package product 'CasePaths' requires minimum platform version 5.0 for the watchOS platform, but this target supports 4.0 (in target 'MobiusExtras' from project 'Mobius')
** BUILD FAILED **
The following build commands failed:
	Building workspace spi-builder-workspace with scheme Mobius-Package
(1 failure)
Command line invocation:
    /Applications/Xcode-16.1.0.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 Mobius-Package -destination generic/platform=watchOS "OTHER_SWIFT_FLAGS=-stats-output-dir .stats -strict-concurrency=complete"
User defaults from command line:
    IDEClonedSourcePackagesDirPathOverride = /Users/admin/builder/spi-builder-workspace/.dependencies
    IDEDerivedDataPathOverride = /Users/admin/builder/spi-builder-workspace/.derivedData
    IDEPackageSupportUseBuiltinSCM = YES
Build settings from command line:
    OTHER_SWIFT_FLAGS = -stats-output-dir .stats -strict-concurrency=complete
Resolve Package Graph
Resolved source packages:
  Mobius: /Users/admin/builder/spi-builder-workspace
  CwlCatchException: https://github.com/mattgallagher/CwlCatchException.git @ 2.2.1
  swift-case-paths: https://github.com/pointfreeco/swift-case-paths @ 0.10.1
  CwlPreconditionTesting: https://github.com/mattgallagher/CwlPreconditionTesting.git @ 2.2.2
  Quick: https://github.com/Quick/Quick @ 5.0.1
  Nimble: https://github.com/Quick/Nimble @ 10.0.0
Prepare packages
ComputeTargetDependencyGraph
note: Building targets in dependency order
note: Target dependency graph (12 targets)
    Target 'MobiusTest' in project 'Mobius'
        ➜ Explicit dependency on target 'MobiusTest' in project 'Mobius'
        ➜ Explicit dependency on target 'MobiusCore' in project 'Mobius'
        ➜ Explicit dependency on target 'CasePaths' in project 'swift-case-paths'
    Target 'MobiusNimble' in project 'Mobius'
        ➜ Explicit dependency on target 'MobiusNimble' in project 'Mobius'
        ➜ Explicit dependency on target 'MobiusCore' in project 'Mobius'
        ➜ Explicit dependency on target 'MobiusTest' in project 'Mobius'
        ➜ Explicit dependency on target 'CasePaths' in project 'swift-case-paths'
        ➜ Explicit dependency on target 'Nimble' in project 'Nimble'
    Target 'MobiusNimble' in project 'Mobius'
        ➜ Explicit dependency on target 'MobiusCore' in project 'Mobius'
        ➜ Explicit dependency on target 'MobiusTest' in project 'Mobius'
        ➜ Explicit dependency on target 'CasePaths' in project 'swift-case-paths'
        ➜ Explicit dependency on target 'Nimble' in project 'Nimble'
    Target 'Nimble' in project 'Nimble'
        ➜ Explicit dependency on target 'Nimble' in project 'Nimble'
    Target 'Nimble' in project 'Nimble' (no dependencies)
    Target 'MobiusTest' in project 'Mobius'
        ➜ Explicit dependency on target 'MobiusCore' in project 'Mobius'
        ➜ Explicit dependency on target 'CasePaths' in project 'swift-case-paths'
    Target 'MobiusExtras' in project 'Mobius'
        ➜ Explicit dependency on target 'MobiusExtras' in project 'Mobius'
        ➜ Explicit dependency on target 'MobiusCore' in project 'Mobius'
        ➜ Explicit dependency on target 'CasePaths' in project 'swift-case-paths'
    Target 'MobiusExtras' in project 'Mobius'
        ➜ Explicit dependency on target 'MobiusCore' in project 'Mobius'
        ➜ Explicit dependency on target 'CasePaths' in project 'swift-case-paths'
    Target 'MobiusCore' in project 'Mobius'
        ➜ Explicit dependency on target 'MobiusCore' in project 'Mobius'
        ➜ Explicit dependency on target 'CasePaths' in project 'swift-case-paths'
    Target 'MobiusCore' in project 'Mobius'
        ➜ Explicit dependency on target 'CasePaths' in project 'swift-case-paths'
    Target 'CasePaths' in project 'swift-case-paths'
        ➜ Explicit dependency on target 'CasePaths' in project 'swift-case-paths'
    Target 'CasePaths' in project 'swift-case-paths' (no dependencies)
GatherProvisioningInputs
CreateBuildDescription
error: The package product 'CasePaths' requires minimum platform version 5.0 for the watchOS platform, but this target supports 4.0 (in target 'MobiusCore' from project 'Mobius')
error: The package product 'CasePaths' requires minimum platform version 5.0 for the watchOS platform, but this target supports 4.0 (in target 'MobiusTest' from project 'Mobius')
error: The package product 'CasePaths' requires minimum platform version 5.0 for the watchOS platform, but this target supports 4.0 (in target 'MobiusExtras' from project 'Mobius')
error: The package product 'CasePaths' requires minimum platform version 5.0 for the watchOS platform, but this target supports 4.0 (in target 'MobiusNimble' from project 'Mobius')
error: The package product 'Nimble' requires minimum platform version 5.0 for the watchOS platform, but this target supports 4.0 (in target 'MobiusNimble' from project 'Mobius')
** BUILD FAILED **
The following build commands failed:
	Building workspace spi-builder-workspace with scheme Mobius-Package
(1 failure)
BUILD FAILURE 6.0 watchOS