Swift Package Index

Build Information

Failed to build Kronos, reference main (543cae), with Swift 6.4 for iOS using Xcode 27.0 on 22 Sep 2026 11:41:35 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 Kronos -destination generic/platform=iOS

Build Log

========================================
RunAll
========================================
Builder version: 5.1.0
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/MobileNativeFoundation/Kronos.git
Reference: main
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/MobileNativeFoundation/Kronos
 * branch            main       -> FETCH_HEAD
 * [new branch]      main       -> origin/main
HEAD is now at 543cae0 Fix Package.swift typo (#120)
Cloned https://github.com/MobileNativeFoundation/Kronos.git
Revision (git rev-parse @):
543cae037bfc13a7d722e233a92a212b42d9e750
SUCCESS checkout https://github.com/MobileNativeFoundation/Kronos.git at main
========================================
Build
========================================
Selected platform:         iOS
Swift version:             6.4
Building package at path:  $PWD
https://github.com/MobileNativeFoundation/Kronos.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" : "Kronos",
  "name" : "Kronos",
  "path" : "/Users/admin/builder/spi-builder-workspace",
  "platforms" : [
  ],
  "products" : [
    {
      "name" : "Kronos",
      "targets" : [
        "Kronos"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "KronosTests",
      "module_type" : "SwiftTarget",
      "name" : "KronosTests",
      "path" : "Tests/KronosTests",
      "sources" : [
        "ClockTests.swift",
        "DNSResolverTests.swift",
        "NTPClientTests.swift",
        "NTPPacketTests.swift",
        "TimeStorageTests.swift"
      ],
      "target_dependencies" : [
        "Kronos"
      ],
      "type" : "test"
    },
    {
      "c99name" : "Kronos",
      "module_type" : "SwiftTarget",
      "name" : "Kronos",
      "path" : "Sources",
      "product_memberships" : [
        "Kronos"
      ],
      "resources" : [
        {
          "path" : "/Users/admin/builder/spi-builder-workspace/Sources/PrivacyInfo.xcprivacy",
          "rule" : {
            "process" : {
            }
          }
        }
      ],
      "sources" : [
        "Clock.swift",
        "DNSResolver.swift",
        "Data+Bytes.swift",
        "InternetAddress.swift",
        "NSTimer+ClosureKit.swift",
        "NTPClient.swift",
        "NTPPacket.swift",
        "NTPProtocol.swift",
        "TimeFreeze.swift",
        "TimeStorage.swift"
      ],
      "type" : "library"
    }
  ],
  "tools_version" : "5.3"
}
{
  "project" : {
    "configurations" : [
      "Debug",
      "Release"
    ],
    "name" : "Kronos",
    "schemes" : [
      "Kronos"
    ],
    "targets" : [
      "Kronos",
      "KronosTests"
    ]
  }
}
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 Kronos -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 Kronos -destination generic/platform=iOS
ComputePackagePrebuildTargetDependencyGraph
Prepare packages
CreateBuildRequest
SendProjectDescription
CreateBuildOperation
ComputeTargetDependencyGraph
note: Building targets in dependency order
note: Target dependency graph (1 target)
    Target 'Kronos' in project 'Kronos' (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: ebcf83b8649a33307f9f6f8c586a0181
Build description path: /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/XCBuildData/ebcf83b8649a33307f9f6f8c586a0181.xcbuilddata
/Users/admin/builder/spi-builder-workspace/Kronos.xcodeproj: error: The iOS deployment target 'IPHONEOS_DEPLOYMENT_TARGET' is set to 12.0, but the range of supported deployment target versions is 15.0 to 27.0.x. (in target 'Kronos' from project 'Kronos')
** BUILD FAILED **
The following build commands failed:
	Building project Kronos with scheme Kronos
(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" : "Kronos",
  "name" : "Kronos",
  "path" : "/Users/admin/builder/spi-builder-workspace",
  "platforms" : [
  ],
  "products" : [
    {
      "name" : "Kronos",
      "targets" : [
        "Kronos"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "KronosTests",
      "module_type" : "SwiftTarget",
      "name" : "KronosTests",
      "path" : "Tests/KronosTests",
      "sources" : [
        "ClockTests.swift",
        "DNSResolverTests.swift",
        "NTPClientTests.swift",
        "NTPPacketTests.swift",
        "TimeStorageTests.swift"
      ],
      "target_dependencies" : [
        "Kronos"
      ],
      "type" : "test"
    },
    {
      "c99name" : "Kronos",
      "module_type" : "SwiftTarget",
      "name" : "Kronos",
      "path" : "Sources",
      "product_memberships" : [
        "Kronos"
      ],
      "resources" : [
        {
          "path" : "/Users/admin/builder/spi-builder-workspace/Sources/PrivacyInfo.xcprivacy",
          "rule" : {
            "process" : {
            }
          }
        }
      ],
      "sources" : [
        "Clock.swift",
        "DNSResolver.swift",
        "Data+Bytes.swift",
        "InternetAddress.swift",
        "NSTimer+ClosureKit.swift",
        "NTPClient.swift",
        "NTPPacket.swift",
        "NTPProtocol.swift",
        "TimeFreeze.swift",
        "TimeStorage.swift"
      ],
      "type" : "library"
    }
  ],
  "tools_version" : "5.3"
}
{
  "project" : {
    "configurations" : [
      "Debug",
      "Release"
    ],
    "name" : "Kronos",
    "schemes" : [
      "Kronos"
    ],
    "targets" : [
      "Kronos",
      "KronosTests"
    ]
  }
}
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 Kronos -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 Kronos -destination generic/platform=iOS
ComputePackagePrebuildTargetDependencyGraph
Prepare packages
CreateBuildRequest
SendProjectDescription
CreateBuildOperation
ComputeTargetDependencyGraph
note: Building targets in dependency order
note: Target dependency graph (1 target)
    Target 'Kronos' in project 'Kronos' (no dependencies)
GatherProvisioningInputs
CreateBuildDescription
/Users/admin/builder/spi-builder-workspace/Kronos.xcodeproj: error: The iOS deployment target 'IPHONEOS_DEPLOYMENT_TARGET' is set to 12.0, but the range of supported deployment target versions is 15.0 to 27.0.x. (in target 'Kronos' from project 'Kronos')
** BUILD FAILED **
The following build commands failed:
	Building project Kronos with scheme Kronos
(1 failure)
BUILD FAILURE 6.4 iOS