Swift Package Index

Build Information

Failed to build DuctTape, reference 0.2.0 (f5fc8a), with Swift 6.4 for iOS using Xcode 27.0 on 17 Sep 2026 15:08:59 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 DuctTape -destination generic/platform=iOS

Build Log

========================================
RunAll
========================================
Builder version: 5.1.0
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/marty-suzuki/DuctTape.git
Reference: 0.2.0
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/marty-suzuki/DuctTape
 * tag               0.2.0      -> FETCH_HEAD
HEAD is now at f5fc8a5 Update README
Cloned https://github.com/marty-suzuki/DuctTape.git
Revision (git rev-parse @):
f5fc8a5af8efed6d8e07dfff591bbdb594880913
SUCCESS checkout https://github.com/marty-suzuki/DuctTape.git at 0.2.0
========================================
Build
========================================
Selected platform:         iOS
Swift version:             6.4
Building package at path:  $PWD
https://github.com/marty-suzuki/DuctTape.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" : "DuctTape",
  "name" : "DuctTape",
  "path" : "/Users/admin/builder/spi-builder-workspace",
  "platforms" : [
    {
      "name" : "macos",
      "version" : "10.10"
    },
    {
      "name" : "ios",
      "version" : "9.0"
    },
    {
      "name" : "tvos",
      "version" : "10.0"
    },
    {
      "name" : "watchos",
      "version" : "3.0"
    }
  ],
  "products" : [
    {
      "name" : "DuctTape",
      "targets" : [
        "DuctTape"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "DuctTapeTests",
      "module_type" : "SwiftTarget",
      "name" : "DuctTapeTests",
      "path" : "Tests/DuctTapeTests",
      "sources" : [
        "DuctTapeTests.swift",
        "XCTestManifests.swift"
      ],
      "target_dependencies" : [
        "DuctTape"
      ],
      "type" : "test"
    },
    {
      "c99name" : "DuctTape",
      "module_type" : "SwiftTarget",
      "name" : "DuctTape",
      "path" : "Sources/DuctTape",
      "product_memberships" : [
        "DuctTape"
      ],
      "sources" : [
        "DuctTape.swift"
      ],
      "type" : "library"
    }
  ],
  "tools_version" : "5.1"
}
{
  "project" : {
    "configurations" : [
      "Debug",
      "Release"
    ],
    "name" : "DuctTape",
    "schemes" : [
      "DuctTape"
    ],
    "targets" : [
      "DuctTape",
      "DuctTapePackageDescription",
      "DuctTapePackageTests",
      "DuctTapeTests"
    ]
  }
}
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 DuctTape -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 DuctTape -destination generic/platform=iOS
ComputePackagePrebuildTargetDependencyGraph
Prepare packages
CreateBuildRequest
SendProjectDescription
CreateBuildOperation
ComputeTargetDependencyGraph
note: Building targets in dependency order
note: Target dependency graph (1 target)
    Target 'DuctTape' in project 'DuctTape' (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/swiftc --version
ExecuteExternalTool /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/ld -version_details
Build description signature: f403aad45bd9aaae3154dad30760bdd9
Build description path: /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/XCBuildData/f403aad45bd9aaae3154dad30760bdd9.xcbuilddata
/Users/admin/builder/spi-builder-workspace/DuctTape.xcodeproj: error: The iOS deployment target 'IPHONEOS_DEPLOYMENT_TARGET' is set to 9.0, but the range of supported deployment target versions is 15.0 to 27.0.x. (in target 'DuctTape' from project 'DuctTape')
** BUILD FAILED **
The following build commands failed:
	Building project DuctTape with scheme DuctTape
(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" : "DuctTape",
  "name" : "DuctTape",
  "path" : "/Users/admin/builder/spi-builder-workspace",
  "platforms" : [
    {
      "name" : "macos",
      "version" : "10.10"
    },
    {
      "name" : "ios",
      "version" : "9.0"
    },
    {
      "name" : "tvos",
      "version" : "10.0"
    },
    {
      "name" : "watchos",
      "version" : "3.0"
    }
  ],
  "products" : [
    {
      "name" : "DuctTape",
      "targets" : [
        "DuctTape"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "DuctTapeTests",
      "module_type" : "SwiftTarget",
      "name" : "DuctTapeTests",
      "path" : "Tests/DuctTapeTests",
      "sources" : [
        "DuctTapeTests.swift",
        "XCTestManifests.swift"
      ],
      "target_dependencies" : [
        "DuctTape"
      ],
      "type" : "test"
    },
    {
      "c99name" : "DuctTape",
      "module_type" : "SwiftTarget",
      "name" : "DuctTape",
      "path" : "Sources/DuctTape",
      "product_memberships" : [
        "DuctTape"
      ],
      "sources" : [
        "DuctTape.swift"
      ],
      "type" : "library"
    }
  ],
  "tools_version" : "5.1"
}
{
  "project" : {
    "configurations" : [
      "Debug",
      "Release"
    ],
    "name" : "DuctTape",
    "schemes" : [
      "DuctTape"
    ],
    "targets" : [
      "DuctTape",
      "DuctTapePackageDescription",
      "DuctTapePackageTests",
      "DuctTapeTests"
    ]
  }
}
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 DuctTape -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 DuctTape -destination generic/platform=iOS
ComputePackagePrebuildTargetDependencyGraph
Prepare packages
CreateBuildRequest
SendProjectDescription
CreateBuildOperation
ComputeTargetDependencyGraph
note: Building targets in dependency order
note: Target dependency graph (1 target)
    Target 'DuctTape' in project 'DuctTape' (no dependencies)
GatherProvisioningInputs
CreateBuildDescription
/Users/admin/builder/spi-builder-workspace/DuctTape.xcodeproj: error: The iOS deployment target 'IPHONEOS_DEPLOYMENT_TARGET' is set to 9.0, but the range of supported deployment target versions is 15.0 to 27.0.x. (in target 'DuctTape' from project 'DuctTape')
** BUILD FAILED **
The following build commands failed:
	Building project DuctTape with scheme DuctTape
(1 failure)
BUILD FAILURE 6.4 iOS