Build Information
Failed to build ThirdPartyMailer, reference main (aa0272), with Swift 6.4 for iOS using Xcode 27.0 on 18 Sep 2026 07:56:57 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 ThirdPartyMailer -destination generic/platform=iOSBuild Log
========================================
RunAll
========================================
Builder version: 5.1.0
Interrupt handler set up.
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Checkout
========================================
Clone URL: https://github.com/vtourraine/thirdpartymailer.git
Reference: main
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/vtourraine/thirdpartymailer
* branch main -> FETCH_HEAD
* [new branch] main -> origin/main
HEAD is now at aa02726 Remove .swift-version
Cloned https://github.com/vtourraine/thirdpartymailer.git
Revision (git rev-parse @):
aa027261d40d97a1e2bfd33ec021f96daa316f65
SUCCESS checkout https://github.com/vtourraine/thirdpartymailer.git at main
========================================
Build
========================================
Selected platform: iOS
Swift version: 6.4
Building package at path: $PWD
https://github.com/vtourraine/thirdpartymailer.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" : "ThirdPartyMailer",
"name" : "ThirdPartyMailer",
"path" : "/Users/admin/builder/spi-builder-workspace",
"platforms" : [
{
"name" : "macos",
"version" : "10.13"
},
{
"name" : "ios",
"version" : "12.0"
},
{
"name" : "tvos",
"version" : "12.0"
},
{
"name" : "watchos",
"version" : "4.0"
},
{
"name" : "visionos",
"version" : "1.0"
}
],
"products" : [
{
"name" : "ThirdPartyMailer",
"targets" : [
"ThirdPartyMailer"
],
"type" : {
"library" : [
"automatic"
]
}
}
],
"targets" : [
{
"c99name" : "ThirdPartyMailerTests",
"module_type" : "SwiftTarget",
"name" : "ThirdPartyMailerTests",
"path" : "Tests/ThirdPartyMailerTests",
"sources" : [
"ThirdPartyMailClientsTests.swift"
],
"target_dependencies" : [
"ThirdPartyMailer"
],
"type" : "test"
},
{
"c99name" : "ThirdPartyMailer",
"module_type" : "SwiftTarget",
"name" : "ThirdPartyMailer",
"path" : "Sources/ThirdPartyMailer",
"product_memberships" : [
"ThirdPartyMailer"
],
"sources" : [
"ThirdPartyMailClient.swift",
"ThirdPartyMailer.swift"
],
"type" : "library"
}
],
"tools_version" : "6.0"
}
warning: 'spi-builder-workspace': /Users/admin/builder/spi-builder-workspace/Package.swift:11:19: warning: 'v4' is deprecated: watchOS 9.0 is the oldest supported version [#DeprecatedDeclaration]
9 | .iOS(.v12),
10 | .tvOS(.v12),
11 | .watchOS(.v4),
| `- warning: 'v4' is deprecated: watchOS 9.0 is the oldest supported version [#DeprecatedDeclaration]
12 | .visionOS(.v1)
13 | ],
[#DeprecatedDeclaration]: <https://docs.swift.org/compiler/documentation/diagnostics/deprecated-declaration>
{
"project" : {
"configurations" : [
"Debug",
"Release"
],
"name" : "ThirdPartyMailer",
"schemes" : [
"ThirdPartyMailer"
],
"targets" : [
"ThirdPartyMailer",
"ThirdPartyMailerTests"
]
}
}
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 ThirdPartyMailer -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 ThirdPartyMailer -destination generic/platform=iOS
ComputePackagePrebuildTargetDependencyGraph
Prepare packages
CreateBuildRequest
SendProjectDescription
CreateBuildOperation
ComputeTargetDependencyGraph
note: Building targets in dependency order
note: Target dependency graph (1 target)
Target 'ThirdPartyMailer' in project 'ThirdPartyMailer' (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: b5d546b952ad0d32d2c928404587e5bf
Build description path: /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/XCBuildData/b5d546b952ad0d32d2c928404587e5bf.xcbuilddata
/Users/admin/builder/spi-builder-workspace/ThirdPartyMailer.xcodeproj: error: The iOS deployment target 'IPHONEOS_DEPLOYMENT_TARGET' is set to 10.0, but the range of supported deployment target versions is 15.0 to 27.0.x. (in target 'ThirdPartyMailer' from project 'ThirdPartyMailer')
** BUILD FAILED **
The following build commands failed:
Building project ThirdPartyMailer with scheme ThirdPartyMailer
(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" : "ThirdPartyMailer",
"name" : "ThirdPartyMailer",
"path" : "/Users/admin/builder/spi-builder-workspace",
"platforms" : [
{
"name" : "macos",
"version" : "10.13"
},
{
"name" : "ios",
"version" : "12.0"
},
{
"name" : "tvos",
"version" : "12.0"
},
{
"name" : "watchos",
"version" : "4.0"
},
{
"name" : "visionos",
"version" : "1.0"
}
],
"products" : [
{
"name" : "ThirdPartyMailer",
"targets" : [
"ThirdPartyMailer"
],
"type" : {
"library" : [
"automatic"
]
}
}
],
"targets" : [
{
"c99name" : "ThirdPartyMailerTests",
"module_type" : "SwiftTarget",
"name" : "ThirdPartyMailerTests",
"path" : "Tests/ThirdPartyMailerTests",
"sources" : [
"ThirdPartyMailClientsTests.swift"
],
"target_dependencies" : [
"ThirdPartyMailer"
],
"type" : "test"
},
{
"c99name" : "ThirdPartyMailer",
"module_type" : "SwiftTarget",
"name" : "ThirdPartyMailer",
"path" : "Sources/ThirdPartyMailer",
"product_memberships" : [
"ThirdPartyMailer"
],
"sources" : [
"ThirdPartyMailClient.swift",
"ThirdPartyMailer.swift"
],
"type" : "library"
}
],
"tools_version" : "6.0"
}
{
"project" : {
"configurations" : [
"Debug",
"Release"
],
"name" : "ThirdPartyMailer",
"schemes" : [
"ThirdPartyMailer"
],
"targets" : [
"ThirdPartyMailer",
"ThirdPartyMailerTests"
]
}
}
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 ThirdPartyMailer -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 ThirdPartyMailer -destination generic/platform=iOS
ComputePackagePrebuildTargetDependencyGraph
Prepare packages
CreateBuildRequest
SendProjectDescription
CreateBuildOperation
ComputeTargetDependencyGraph
note: Building targets in dependency order
note: Target dependency graph (1 target)
Target 'ThirdPartyMailer' in project 'ThirdPartyMailer' (no dependencies)
GatherProvisioningInputs
CreateBuildDescription
/Users/admin/builder/spi-builder-workspace/ThirdPartyMailer.xcodeproj: error: The iOS deployment target 'IPHONEOS_DEPLOYMENT_TARGET' is set to 10.0, but the range of supported deployment target versions is 15.0 to 27.0.x. (in target 'ThirdPartyMailer' from project 'ThirdPartyMailer')
** BUILD FAILED **
The following build commands failed:
Building project ThirdPartyMailer with scheme ThirdPartyMailer
(1 failure)
BUILD FAILURE 6.4 iOS