Swift Package Index

Build Information

Failed to build RxNimble, reference master (c7f2c8), with Swift 6.3 for watchOS using Xcode 26.4 on 20 Apr 2026 22:04:54 UTC.

Build Command

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

Build Log

========================================
RunAll
========================================
Builder version: 4.70.0
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/mRs-/RxNimble.git
Reference: master
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/mRs-/RxNimble
 * branch            master     -> FETCH_HEAD
 * [new branch]      master     -> origin/master
HEAD is now at c7f2c85 Update Package.swift
Cloned https://github.com/mRs-/RxNimble.git
Revision (git rev-parse @):
c7f2c85e6e6ab5a5a2df6f716cc4ab2ade425715
SUCCESS checkout https://github.com/mRs-/RxNimble.git at master
========================================
Build
========================================
Selected platform:         watchOS
Swift version:             6.3
Building package at path:  $PWD
https://github.com/mRs-/RxNimble.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" : [
    {
      "identity" : "rxswift",
      "requirement" : {
        "range" : [
          {
            "lower_bound" : "6.0.0",
            "upper_bound" : "7.0.0"
          }
        ]
      },
      "type" : "sourceControl",
      "url" : "https://github.com/ReactiveX/RxSwift"
    },
    {
      "identity" : "nimble",
      "requirement" : {
        "range" : [
          {
            "lower_bound" : "9.0.0",
            "upper_bound" : "10.0.0"
          }
        ]
      },
      "type" : "sourceControl",
      "url" : "https://github.com/Quick/Nimble"
    }
  ],
  "manifest_display_name" : "RxNimble",
  "name" : "RxNimble",
  "path" : "/Users/admin/builder/spi-builder-workspace",
  "platforms" : [
    {
      "name" : "macos",
      "version" : "10.10"
    },
    {
      "name" : "ios",
      "version" : "9.0"
    },
    {
      "name" : "tvos",
      "version" : "9.0"
    },
    {
      "name" : "watchos",
      "version" : "3.0"
    }
  ],
  "products" : [
    {
      "name" : "RxNimble",
      "targets" : [
        "RxNimble"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    }
  ],
  "swift_languages_versions" : [
    "5"
  ],
  "targets" : [
    {
      "c99name" : "RxNimble",
      "module_type" : "SwiftTarget",
      "name" : "RxNimble",
      "path" : "Source",
      "product_dependencies" : [
        "RxSwift",
        "Nimble",
        "RxTest",
        "RxBlocking"
      ],
      "product_memberships" : [
        "RxNimble"
      ],
      "sources" : [
        "Core/Expectation+Ext.swift",
        "RxBlocking/Expectation+Blocking.swift",
        "RxTest/Equal+RxTest.swift",
        "RxTest/Expectation+RxTest.swift",
        "RxTest/ThrowError+RxTest.swift"
      ],
      "type" : "library"
    }
  ],
  "tools_version" : "5.0"
}
{
  "project" : {
    "configurations" : [
      "Debug",
      "Release"
    ],
    "name" : "RxNimble",
    "schemes" : [
      "RxNimbleRxBlocking",
      "RxNimbleRxTest"
    ],
    "targets" : [
      "RxNimbleRxBlocking",
      "RxNimbleRxTest",
      "RxNimbleRxBlockingTests",
      "RxNimbleRxTestTests"
    ]
  }
}
{
  "workspace" : {
    "name" : "spi-builder-workspace",
    "schemes" : [
      "RxNimble"
    ]
  }
}
2026-04-20 18:04:44.907 xcodebuild[625:3778] [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 RxNimble -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 RxNimble -destination generic/platform=watchOS
Resolve Package Graph
Resolve Package Graph
Resolved source packages:
  CwlPreconditionTesting: https://github.com/mattgallagher/CwlPreconditionTesting.git @ 2.2.2
  RxNimble: /Users/admin/builder/spi-builder-workspace
  RxSwift: https://github.com/ReactiveX/RxSwift @ 6.10.2
  CwlCatchException: https://github.com/mattgallagher/CwlCatchException.git @ 2.2.1
  Nimble: https://github.com/Quick/Nimble @ 9.2.1
ComputePackagePrebuildTargetDependencyGraph
Prepare packages
CreateBuildRequest
SendProjectDescription
CreateBuildOperation
ComputeTargetDependencyGraph
note: Building targets in dependency order
note: Target dependency graph (11 targets)
    Target 'RxNimble' in project 'RxNimble'
        ➜ Explicit dependency on target 'RxNimble' in project 'RxNimble'
        ➜ Explicit dependency on target 'RxSwift' in project 'RxSwift'
        ➜ Explicit dependency on target 'Nimble' in project 'Nimble'
        ➜ Explicit dependency on target 'RxTest' in project 'RxSwift'
        ➜ Explicit dependency on target 'RxBlocking' in project 'RxSwift'
    Target 'RxNimble' in project 'RxNimble'
        ➜ Explicit dependency on target 'RxSwift' in project 'RxSwift'
        ➜ Explicit dependency on target 'Nimble' in project 'Nimble'
        ➜ Explicit dependency on target 'RxTest' in project 'RxSwift'
        ➜ Explicit dependency on target 'RxBlocking' in project 'RxSwift'
    Target 'RxBlocking' in project 'RxSwift'
        ➜ Explicit dependency on target 'RxBlocking' in project 'RxSwift'
        ➜ Explicit dependency on target 'RxSwift' in project 'RxSwift'
    Target 'RxBlocking' in project 'RxSwift'
        ➜ Explicit dependency on target 'RxSwift' in project 'RxSwift'
    Target 'RxTest' in project 'RxSwift'
        ➜ Explicit dependency on target 'RxTest' in project 'RxSwift'
        ➜ Explicit dependency on target 'RxSwift' in project 'RxSwift'
    Target 'RxTest' in project 'RxSwift'
        ➜ Explicit dependency on target 'RxSwift' in project 'RxSwift'
    Target 'Nimble' in project 'Nimble'
        ➜ Explicit dependency on target 'Nimble' in project 'Nimble'
    Target 'Nimble' in project 'Nimble' (no dependencies)
    Target 'RxSwift' in project 'RxSwift'
        ➜ Explicit dependency on target 'RxSwift' in project 'RxSwift'
        ➜ Explicit dependency on target 'RxSwift_RxSwift' in project 'RxSwift'
    Target 'RxSwift' in project 'RxSwift'
        ➜ Explicit dependency on target 'RxSwift_RxSwift' in project 'RxSwift'
    Target 'RxSwift_RxSwift' in project 'RxSwift' (no dependencies)
GatherProvisioningInputs
CreateBuildDescription
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/WatchOS.platform/Developer/SDKs/WatchOS26.4.sdk -x c -c /dev/null
ExecuteExternalTool /Applications/Xcode-26.4.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/ld -version_details
Build description signature: ecbe22e72e49293448f8e01c29742ca8
Build description path: /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/XCBuildData/ecbe22e72e49293448f8e01c29742ca8.xcbuilddata
error: The package product 'Nimble' requires minimum platform version 5.0 for the watchOS platform, but this target supports 4.0 (in target 'RxNimble' from project 'RxNimble')
2026-04-20 18:04:48.799 xcodebuild[807:4877] [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 RxNimble
(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:
  CwlPreconditionTesting: https://github.com/mattgallagher/CwlPreconditionTesting.git @ 2.2.2
  RxSwift: https://github.com/ReactiveX/RxSwift @ 6.10.2
  RxNimble: /Users/admin/builder/spi-builder-workspace
  CwlCatchException: https://github.com/mattgallagher/CwlCatchException.git @ 2.2.1
  Nimble: https://github.com/Quick/Nimble @ 9.2.1
resolved source packages: CwlPreconditionTesting, RxSwift, RxNimble, CwlCatchException, Nimble
2026-04-20 18:04:51.182 xcodebuild[855:5173] [MT] IDERunDestination: Supported platforms for the buildables in the current scheme is empty.
{
  "dependencies" : [
    {
      "identity" : "rxswift",
      "requirement" : {
        "range" : [
          {
            "lower_bound" : "6.0.0",
            "upper_bound" : "7.0.0"
          }
        ]
      },
      "type" : "sourceControl",
      "url" : "https://github.com/ReactiveX/RxSwift"
    },
    {
      "identity" : "nimble",
      "requirement" : {
        "range" : [
          {
            "lower_bound" : "9.0.0",
            "upper_bound" : "10.0.0"
          }
        ]
      },
      "type" : "sourceControl",
      "url" : "https://github.com/Quick/Nimble"
    }
  ],
  "manifest_display_name" : "RxNimble",
  "name" : "RxNimble",
  "path" : "/Users/admin/builder/spi-builder-workspace",
  "platforms" : [
    {
      "name" : "macos",
      "version" : "10.10"
    },
    {
      "name" : "ios",
      "version" : "9.0"
    },
    {
      "name" : "tvos",
      "version" : "9.0"
    },
    {
      "name" : "watchos",
      "version" : "3.0"
    }
  ],
  "products" : [
    {
      "name" : "RxNimble",
      "targets" : [
        "RxNimble"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    }
  ],
  "swift_languages_versions" : [
    "5"
  ],
  "targets" : [
    {
      "c99name" : "RxNimble",
      "module_type" : "SwiftTarget",
      "name" : "RxNimble",
      "path" : "Source",
      "product_dependencies" : [
        "RxSwift",
        "Nimble",
        "RxTest",
        "RxBlocking"
      ],
      "product_memberships" : [
        "RxNimble"
      ],
      "sources" : [
        "Core/Expectation+Ext.swift",
        "RxBlocking/Expectation+Blocking.swift",
        "RxTest/Equal+RxTest.swift",
        "RxTest/Expectation+RxTest.swift",
        "RxTest/ThrowError+RxTest.swift"
      ],
      "type" : "library"
    }
  ],
  "tools_version" : "5.0"
}
{
  "workspace" : {
    "name" : "spi-builder-workspace",
    "schemes" : [
      "RxNimble"
    ]
  }
}
2026-04-20 18:04:52.419 xcodebuild[865:5250] [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 RxNimble -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 RxNimble -destination generic/platform=watchOS
Resolve Package Graph
Resolved source packages:
  RxSwift: https://github.com/ReactiveX/RxSwift @ 6.10.2
  CwlCatchException: https://github.com/mattgallagher/CwlCatchException.git @ 2.2.1
  CwlPreconditionTesting: https://github.com/mattgallagher/CwlPreconditionTesting.git @ 2.2.2
  RxNimble: /Users/admin/builder/spi-builder-workspace
  Nimble: https://github.com/Quick/Nimble @ 9.2.1
ComputePackagePrebuildTargetDependencyGraph
Prepare packages
CreateBuildRequest
SendProjectDescription
CreateBuildOperation
ComputeTargetDependencyGraph
note: Building targets in dependency order
note: Target dependency graph (11 targets)
    Target 'RxNimble' in project 'RxNimble'
        ➜ Explicit dependency on target 'RxNimble' in project 'RxNimble'
        ➜ Explicit dependency on target 'RxSwift' in project 'RxSwift'
        ➜ Explicit dependency on target 'Nimble' in project 'Nimble'
        ➜ Explicit dependency on target 'RxTest' in project 'RxSwift'
        ➜ Explicit dependency on target 'RxBlocking' in project 'RxSwift'
    Target 'RxNimble' in project 'RxNimble'
        ➜ Explicit dependency on target 'RxSwift' in project 'RxSwift'
        ➜ Explicit dependency on target 'Nimble' in project 'Nimble'
        ➜ Explicit dependency on target 'RxTest' in project 'RxSwift'
        ➜ Explicit dependency on target 'RxBlocking' in project 'RxSwift'
    Target 'RxBlocking' in project 'RxSwift'
        ➜ Explicit dependency on target 'RxBlocking' in project 'RxSwift'
        ➜ Explicit dependency on target 'RxSwift' in project 'RxSwift'
    Target 'RxBlocking' in project 'RxSwift'
        ➜ Explicit dependency on target 'RxSwift' in project 'RxSwift'
    Target 'RxTest' in project 'RxSwift'
        ➜ Explicit dependency on target 'RxTest' in project 'RxSwift'
        ➜ Explicit dependency on target 'RxSwift' in project 'RxSwift'
    Target 'RxTest' in project 'RxSwift'
        ➜ Explicit dependency on target 'RxSwift' in project 'RxSwift'
    Target 'Nimble' in project 'Nimble'
        ➜ Explicit dependency on target 'Nimble' in project 'Nimble'
    Target 'Nimble' in project 'Nimble' (no dependencies)
    Target 'RxSwift' in project 'RxSwift'
        ➜ Explicit dependency on target 'RxSwift' in project 'RxSwift'
        ➜ Explicit dependency on target 'RxSwift_RxSwift' in project 'RxSwift'
    Target 'RxSwift' in project 'RxSwift'
        ➜ Explicit dependency on target 'RxSwift_RxSwift' in project 'RxSwift'
    Target 'RxSwift_RxSwift' in project 'RxSwift' (no dependencies)
GatherProvisioningInputs
CreateBuildDescription
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/WatchOS.platform/Developer/SDKs/WatchOS26.4.sdk -x c -c /dev/null
ExecuteExternalTool /Applications/Xcode-26.4.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/ld -version_details
Build description signature: ecbe22e72e49293448f8e01c29742ca8
Build description path: /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/XCBuildData/ecbe22e72e49293448f8e01c29742ca8.xcbuilddata
error: The package product 'Nimble' requires minimum platform version 5.0 for the watchOS platform, but this target supports 4.0 (in target 'RxNimble' from project 'RxNimble')
2026-04-20 18:04:53.400 xcodebuild[868:5283] [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 RxNimble
(1 failure)
BUILD FAILURE 6.3 watchOS