Swift Package IndexBuild Information
Failed to build swift-template, reference main (d6fd6f), with Swift 6.4 for watchOS using Xcode 27.0 on 19 Sep 2026 00:15:13 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 swift-template-Package -destination generic/platform=watchOSBuild Log
========================================
RunAll
========================================
Builder version: 5.1.0
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/BinaryBirds/swift-template.git
Reference: main
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/BinaryBirds/swift-template
* branch main -> FETCH_HEAD
* [new branch] main -> origin/main
HEAD is now at d6fd6f6 Swift 6 updates (#4)
Cloned https://github.com/BinaryBirds/swift-template.git
Revision (git rev-parse @):
d6fd6f6126467209318a22844971bcb1ff04f9de
SUCCESS checkout https://github.com/BinaryBirds/swift-template.git at main
========================================
Build
========================================
Selected platform: watchOS
Swift version: 6.4
Building package at path: $PWD
https://github.com/BinaryBirds/swift-template.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
Resolve Package Graph
Fetching from https://github.com/swiftlang/swift-subprocess
Fetching from https://github.com/apple/swift-argument-parser
Fetching from https://github.com/apple/swift-system
Creating working copy of package ‘swift-system’
Checking out 1.7.2 of package ‘swift-system’
Creating working copy of package ‘swift-argument-parser’
Checking out 1.8.2 of package ‘swift-argument-parser’
Creating working copy of package ‘swift-subprocess’
Checking out 0.5.0 of package ‘swift-subprocess’
Resolve Package Graph
Resolved source packages:
swift-system: https://github.com/apple/swift-system @ 1.7.2
swift-argument-parser: https://github.com/apple/swift-argument-parser @ 1.8.2
swift-subprocess: https://github.com/swiftlang/swift-subprocess @ 0.5.0
swift-template: /Users/admin/builder/spi-builder-workspace
resolved source packages: swift-system, swift-argument-parser, swift-subprocess, swift-template
2026-09-18 20:14:25.647 xcodebuild[525:3003] [MT] IDERunDestination: Supported platforms for the buildables in the current scheme is empty.
{
"dependencies" : [
{
"identity" : "swift-argument-parser",
"requirement" : {
"exact" : [
"1.8.2"
]
},
"type" : "sourceControl",
"url" : "https://github.com/apple/swift-argument-parser"
},
{
"identity" : "swift-system",
"requirement" : {
"exact" : [
"1.7.2"
]
},
"type" : "sourceControl",
"url" : "https://github.com/apple/swift-system"
},
{
"identity" : "swift-subprocess",
"requirement" : {
"exact" : [
"0.5.0"
]
},
"type" : "sourceControl",
"url" : "https://github.com/swiftlang/swift-subprocess"
}
],
"manifest_display_name" : "swift-template",
"name" : "swift-template",
"path" : "/Users/admin/builder/spi-builder-workspace",
"platforms" : [
{
"name" : "macos",
"version" : "15.0"
},
{
"name" : "ios",
"version" : "18.0"
},
{
"name" : "tvos",
"version" : "18.0"
},
{
"name" : "watchos",
"version" : "11.0"
},
{
"name" : "visionos",
"version" : "2.0"
}
],
"products" : [
{
"name" : "swift-template",
"targets" : [
"SwiftTemplateCli"
],
"type" : {
"executable" : null
}
},
{
"name" : "SwiftTemplate",
"targets" : [
"SwiftTemplate"
],
"type" : {
"library" : [
"automatic"
]
}
}
],
"targets" : [
{
"c99name" : "SwiftTemplateTests",
"module_type" : "SwiftTarget",
"name" : "SwiftTemplateTests",
"path" : "Tests/SwiftTemplateTests",
"sources" : [
"SwiftTemplateTests.swift"
],
"target_dependencies" : [
"SwiftTemplate"
],
"type" : "test"
},
{
"c99name" : "SwiftTemplateCli",
"module_type" : "SwiftTarget",
"name" : "SwiftTemplateCli",
"path" : "Sources/SwiftTemplateCli",
"product_dependencies" : [
"ArgumentParser",
"Subprocess"
],
"product_memberships" : [
"swift-template"
],
"sources" : [
"Commands/CreateCommand.swift",
"Commands/GenerateCommand.swift",
"Commands/InstallCommand.swift",
"Commands/ListCommand.swift",
"Commands/RemoveCommand.swift",
"Commands/UpdateCommand.swift",
"Entrypoint.swift",
"Support/CLI.swift"
],
"target_dependencies" : [
"SwiftTemplate"
],
"type" : "executable"
},
{
"c99name" : "SwiftTemplate",
"module_type" : "SwiftTarget",
"name" : "SwiftTemplate",
"path" : "Sources/SwiftTemplate",
"product_dependencies" : [
"SystemPackage"
],
"product_memberships" : [
"swift-template",
"SwiftTemplate"
],
"sources" : [
"String+Extensions.swift",
"Template.swift"
],
"type" : "library"
}
],
"tools_version" : "6.2"
}
{
"workspace" : {
"name" : "swift-template",
"schemes" : [
"swift-template",
"swift-template-Package",
"SwiftTemplate"
]
}
}
2026-09-18 20:14:59.683 xcodebuild[750:4350] [MT] IDERunDestination: Supported platforms for the buildables in the current scheme is empty.
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 swift-template-Package -destination generic/platform=watchOS
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 swift-template-Package -destination generic/platform=watchOS
Resolve Package Graph
Resolve Package Graph
Resolved source packages:
swift-system: https://github.com/apple/swift-system @ 1.7.2
swift-template: /Users/admin/builder/spi-builder-workspace
swift-subprocess: https://github.com/swiftlang/swift-subprocess @ 0.5.0
swift-argument-parser: https://github.com/apple/swift-argument-parser @ 1.8.2
ComputePackagePrebuildTargetDependencyGraph
Prepare packages
CreateBuildRequest
SendProjectDescription
CreateBuildOperation
ComputeTargetDependencyGraph
note: Building targets in dependency order
note: Target dependency graph (12 targets)
Target 'swift-template-product' in project 'swift-template'
➜ Explicit dependency on target 'SwiftTemplate' in project 'swift-template'
➜ Explicit dependency on target 'SystemPackage-product' in project 'swift-system'
➜ Explicit dependency on target 'ArgumentParser-product' in project 'swift-argument-parser'
➜ Explicit dependency on target 'Subprocess-product' in project 'swift-subprocess'
Target 'Subprocess-product' in project 'swift-subprocess'
➜ Explicit dependency on target 'Subprocess' in project 'swift-subprocess'
➜ Explicit dependency on target '_SubprocessCShims' in project 'swift-subprocess'
➜ Explicit dependency on target 'SystemPackage-product' in project 'swift-system'
Target 'Subprocess' in project 'swift-subprocess'
➜ Explicit dependency on target '_SubprocessCShims' in project 'swift-subprocess'
➜ Explicit dependency on target 'SystemPackage-product' in project 'swift-system'
Target '_SubprocessCShims' in project 'swift-subprocess' (no dependencies)
Target 'ArgumentParser-product' in project 'swift-argument-parser'
➜ Explicit dependency on target 'ArgumentParser' in project 'swift-argument-parser'
➜ Explicit dependency on target 'ArgumentParserToolInfo' in project 'swift-argument-parser'
Target 'ArgumentParser' in project 'swift-argument-parser'
➜ Explicit dependency on target 'ArgumentParserToolInfo' in project 'swift-argument-parser'
Target 'ArgumentParserToolInfo' in project 'swift-argument-parser' (no dependencies)
Target 'SwiftTemplate-product' in project 'swift-template'
➜ Explicit dependency on target 'SwiftTemplate' in project 'swift-template'
➜ Explicit dependency on target 'SystemPackage-product' in project 'swift-system'
Target 'SwiftTemplate' in project 'swift-template'
➜ Explicit dependency on target 'SystemPackage-product' in project 'swift-system'
Target 'SystemPackage-product' in project 'swift-system'
➜ Explicit dependency on target 'SystemPackage' in project 'swift-system'
➜ Explicit dependency on target 'CSystem' in project 'swift-system'
Target 'SystemPackage' in project 'swift-system'
➜ Explicit dependency on target 'CSystem' in project 'swift-system'
Target 'CSystem' in project 'swift-system' (no dependencies)
GatherProvisioningInputs
CreateBuildDescription
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/WatchOS.platform/Developer/SDKs/WatchOS27.0.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/clang -v -E -dM -isysroot /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS27.0.sdk -x c -c /dev/null
ExecuteExternalTool /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/ld -version_details
ExecuteExternalTool /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang -v -E -dM -arch arm64_32 -isysroot /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS27.0.sdk -x c -c /dev/null
ReadFileContents /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/share/docc/features.json
Build description signature: 9fcd1bde2ba945b43d59a2affb81f273
Build description path: /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/XCBuildData/9fcd1bde2ba945b43d59a2affb81f273.xcbuilddata
error: The package product 'Subprocess-product' requires minimum platform version 27.0 for the watchOS platform, but this target supports 11.0 (in target 'swift-template-product' from project 'swift-template')
2026-09-18 20:15:03.798 xcodebuild[760:4468] [MT] IDERunDestination: Supported platforms for the buildables in the current scheme is empty.
** BUILD FAILED **
The following build commands failed:
Building workspace swift-template with scheme swift-template-Package
(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
Resolve Package Graph
Resolved source packages:
swift-argument-parser: https://github.com/apple/swift-argument-parser @ 1.8.2
swift-subprocess: https://github.com/swiftlang/swift-subprocess @ 0.5.0
swift-system: https://github.com/apple/swift-system @ 1.7.2
swift-template: /Users/admin/builder/spi-builder-workspace
resolved source packages: swift-argument-parser, swift-subprocess, swift-system, swift-template
2026-09-18 20:15:08.002 xcodebuild[838:4964] [MT] IDERunDestination: Supported platforms for the buildables in the current scheme is empty.
{
"dependencies" : [
{
"identity" : "swift-argument-parser",
"requirement" : {
"exact" : [
"1.8.2"
]
},
"type" : "sourceControl",
"url" : "https://github.com/apple/swift-argument-parser"
},
{
"identity" : "swift-system",
"requirement" : {
"exact" : [
"1.7.2"
]
},
"type" : "sourceControl",
"url" : "https://github.com/apple/swift-system"
},
{
"identity" : "swift-subprocess",
"requirement" : {
"exact" : [
"0.5.0"
]
},
"type" : "sourceControl",
"url" : "https://github.com/swiftlang/swift-subprocess"
}
],
"manifest_display_name" : "swift-template",
"name" : "swift-template",
"path" : "/Users/admin/builder/spi-builder-workspace",
"platforms" : [
{
"name" : "macos",
"version" : "15.0"
},
{
"name" : "ios",
"version" : "18.0"
},
{
"name" : "tvos",
"version" : "18.0"
},
{
"name" : "watchos",
"version" : "11.0"
},
{
"name" : "visionos",
"version" : "2.0"
}
],
"products" : [
{
"name" : "swift-template",
"targets" : [
"SwiftTemplateCli"
],
"type" : {
"executable" : null
}
},
{
"name" : "SwiftTemplate",
"targets" : [
"SwiftTemplate"
],
"type" : {
"library" : [
"automatic"
]
}
}
],
"targets" : [
{
"c99name" : "SwiftTemplateTests",
"module_type" : "SwiftTarget",
"name" : "SwiftTemplateTests",
"path" : "Tests/SwiftTemplateTests",
"sources" : [
"SwiftTemplateTests.swift"
],
"target_dependencies" : [
"SwiftTemplate"
],
"type" : "test"
},
{
"c99name" : "SwiftTemplateCli",
"module_type" : "SwiftTarget",
"name" : "SwiftTemplateCli",
"path" : "Sources/SwiftTemplateCli",
"product_dependencies" : [
"ArgumentParser",
"Subprocess"
],
"product_memberships" : [
"swift-template"
],
"sources" : [
"Commands/CreateCommand.swift",
"Commands/GenerateCommand.swift",
"Commands/InstallCommand.swift",
"Commands/ListCommand.swift",
"Commands/RemoveCommand.swift",
"Commands/UpdateCommand.swift",
"Entrypoint.swift",
"Support/CLI.swift"
],
"target_dependencies" : [
"SwiftTemplate"
],
"type" : "executable"
},
{
"c99name" : "SwiftTemplate",
"module_type" : "SwiftTarget",
"name" : "SwiftTemplate",
"path" : "Sources/SwiftTemplate",
"product_dependencies" : [
"SystemPackage"
],
"product_memberships" : [
"swift-template",
"SwiftTemplate"
],
"sources" : [
"String+Extensions.swift",
"Template.swift"
],
"type" : "library"
}
],
"tools_version" : "6.2"
}
{
"workspace" : {
"name" : "swift-template",
"schemes" : [
"swift-template",
"swift-template-Package",
"SwiftTemplate"
]
}
}
2026-09-18 20:15:10.377 xcodebuild[854:5083] [MT] IDERunDestination: Supported platforms for the buildables in the current scheme is empty.
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 swift-template-Package -destination generic/platform=watchOS
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 swift-template-Package -destination generic/platform=watchOS
Resolve Package Graph
Resolved source packages:
swift-template: /Users/admin/builder/spi-builder-workspace
swift-argument-parser: https://github.com/apple/swift-argument-parser @ 1.8.2
swift-system: https://github.com/apple/swift-system @ 1.7.2
swift-subprocess: https://github.com/swiftlang/swift-subprocess @ 0.5.0
ComputePackagePrebuildTargetDependencyGraph
Prepare packages
CreateBuildRequest
SendProjectDescription
CreateBuildOperation
ComputeTargetDependencyGraph
note: Building targets in dependency order
note: Target dependency graph (12 targets)
Target 'swift-template-product' in project 'swift-template'
➜ Explicit dependency on target 'SwiftTemplate' in project 'swift-template'
➜ Explicit dependency on target 'SystemPackage-product' in project 'swift-system'
➜ Explicit dependency on target 'ArgumentParser-product' in project 'swift-argument-parser'
➜ Explicit dependency on target 'Subprocess-product' in project 'swift-subprocess'
Target 'Subprocess-product' in project 'swift-subprocess'
➜ Explicit dependency on target 'Subprocess' in project 'swift-subprocess'
➜ Explicit dependency on target '_SubprocessCShims' in project 'swift-subprocess'
➜ Explicit dependency on target 'SystemPackage-product' in project 'swift-system'
Target 'Subprocess' in project 'swift-subprocess'
➜ Explicit dependency on target '_SubprocessCShims' in project 'swift-subprocess'
➜ Explicit dependency on target 'SystemPackage-product' in project 'swift-system'
Target '_SubprocessCShims' in project 'swift-subprocess' (no dependencies)
Target 'ArgumentParser-product' in project 'swift-argument-parser'
➜ Explicit dependency on target 'ArgumentParser' in project 'swift-argument-parser'
➜ Explicit dependency on target 'ArgumentParserToolInfo' in project 'swift-argument-parser'
Target 'ArgumentParser' in project 'swift-argument-parser'
➜ Explicit dependency on target 'ArgumentParserToolInfo' in project 'swift-argument-parser'
Target 'ArgumentParserToolInfo' in project 'swift-argument-parser' (no dependencies)
Target 'SwiftTemplate-product' in project 'swift-template'
➜ Explicit dependency on target 'SwiftTemplate' in project 'swift-template'
➜ Explicit dependency on target 'SystemPackage-product' in project 'swift-system'
Target 'SwiftTemplate' in project 'swift-template'
➜ Explicit dependency on target 'SystemPackage-product' in project 'swift-system'
Target 'SystemPackage-product' in project 'swift-system'
➜ Explicit dependency on target 'SystemPackage' in project 'swift-system'
➜ Explicit dependency on target 'CSystem' in project 'swift-system'
Target 'SystemPackage' in project 'swift-system'
➜ Explicit dependency on target 'CSystem' in project 'swift-system'
Target 'CSystem' in project 'swift-system' (no dependencies)
GatherProvisioningInputs
CreateBuildDescription
error: The package product 'Subprocess-product' requires minimum platform version 27.0 for the watchOS platform, but this target supports 11.0 (in target 'swift-template-product' from project 'swift-template')
2026-09-18 20:15:12.401 xcodebuild[863:5159] [MT] IDERunDestination: Supported platforms for the buildables in the current scheme is empty.
** BUILD FAILED **
The following build commands failed:
Building workspace swift-template with scheme swift-template-Package
(1 failure)
BUILD FAILURE 6.4 watchOS