Swift Package Index

Build Information

Failed to build SerialSwift, reference main (a66344), with Swift 6.3 for iOS using Xcode 26.4 on 13 Apr 2026 08:41:06 UTC.

Build Command

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

Build Log

========================================
RunAll
========================================
Builder version: 4.70.0
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/Flowduino/SerialSwift.git
Reference: main
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/Flowduino/SerialSwift
 * branch            main       -> FETCH_HEAD
 * [new branch]      main       -> origin/main
HEAD is now at a663441 Create FUNDING.yml
Cloned https://github.com/Flowduino/SerialSwift.git
Revision (git rev-parse @):
a663441be77f80ead749d88fc92ae62554da5a9d
SUCCESS checkout https://github.com/Flowduino/SerialSwift.git at main
========================================
Build
========================================
Selected platform:         iOS
Swift version:             6.3
Building package at path:  $PWD
https://github.com/Flowduino/SerialSwift.git
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
Fetching from https://github.com/Flowduino/EventDrivenSwift.git
Fetching from https://github.com/Flowduino/Observable.git
Fetching from https://github.com/armadsen/ORSSerialPort.git
Fetching from https://github.com/Flowduino/ThreadSafeSwift.git
Creating working copy of package ‘Observable’
Checking out 2.0.0 of package ‘Observable’
Creating working copy of package ‘ORSSerialPort’
Checking out 2.1.0 of package ‘ORSSerialPort’
Creating working copy of package ‘EventDrivenSwift’
Checking out 5.2.0 of package ‘EventDrivenSwift’
Creating working copy of package ‘ThreadSafeSwift’
Checking out 1.1.0 of package ‘ThreadSafeSwift’
Resolve Package Graph
Resolved source packages:
  Observable: https://github.com/Flowduino/Observable.git @ 2.0.0
  EventDrivenSwift: https://github.com/Flowduino/EventDrivenSwift.git @ 5.2.0
  SerialSwift: /Users/admin/builder/spi-builder-workspace
  ORSSerialPort: https://github.com/armadsen/ORSSerialPort.git @ 2.1.0
  ThreadSafeSwift: https://github.com/Flowduino/ThreadSafeSwift.git @ 1.1.0
resolved source packages: Observable, EventDrivenSwift, SerialSwift, ORSSerialPort, ThreadSafeSwift
2026-04-13 04:40:50.927 xcodebuild[528:3053] [MT] IDERunDestination: Supported platforms for the buildables in the current scheme is empty.
{
  "dependencies" : [
    {
      "identity" : "threadsafeswift",
      "requirement" : {
        "range" : [
          {
            "lower_bound" : "1.1.0",
            "upper_bound" : "2.0.0"
          }
        ]
      },
      "type" : "sourceControl",
      "url" : "https://github.com/Flowduino/ThreadSafeSwift.git"
    },
    {
      "identity" : "observable",
      "requirement" : {
        "range" : [
          {
            "lower_bound" : "2.0.0",
            "upper_bound" : "3.0.0"
          }
        ]
      },
      "type" : "sourceControl",
      "url" : "https://github.com/Flowduino/Observable.git"
    },
    {
      "identity" : "eventdrivenswift",
      "requirement" : {
        "range" : [
          {
            "lower_bound" : "5.0.0",
            "upper_bound" : "6.0.0"
          }
        ]
      },
      "type" : "sourceControl",
      "url" : "https://github.com/Flowduino/EventDrivenSwift.git"
    },
    {
      "identity" : "orsserialport",
      "requirement" : {
        "range" : [
          {
            "lower_bound" : "2.1.0",
            "upper_bound" : "3.0.0"
          }
        ]
      },
      "type" : "sourceControl",
      "url" : "https://github.com/armadsen/ORSSerialPort.git"
    }
  ],
  "manifest_display_name" : "SerialSwift",
  "name" : "SerialSwift",
  "path" : "/Users/admin/builder/spi-builder-workspace",
  "platforms" : [
    {
      "name" : "macos",
      "version" : "10.15"
    }
  ],
  "products" : [
    {
      "name" : "SerialSwift",
      "targets" : [
        "SerialSwift"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "SerialSwiftTests",
      "module_type" : "SwiftTarget",
      "name" : "SerialSwiftTests",
      "path" : "Tests/SerialSwiftTests",
      "product_dependencies" : [
        "ThreadSafeSwift",
        "Observable",
        "EventDrivenSwift",
        "ORSSerial"
      ],
      "sources" : [
        "SerialTests.swift"
      ],
      "target_dependencies" : [
        "SerialSwift"
      ],
      "type" : "test"
    },
    {
      "c99name" : "SerialSwift",
      "module_type" : "SwiftTarget",
      "name" : "SerialSwift",
      "path" : "Sources/SerialSwift",
      "product_dependencies" : [
        "ThreadSafeSwift",
        "Observable",
        "EventDrivenSwift",
        "ORSSerial"
      ],
      "product_memberships" : [
        "SerialSwift"
      ],
      "sources" : [
        "BaudRate.swift",
        "Events/SerialPortClosedEvent.swift",
        "Events/SerialPortDataReceivedEvent.swift",
        "Events/SerialPortErrorEvent.swift",
        "Events/SerialPortOpenedEvent.swift",
        "Events/SerialPortRemovedEvent.swift",
        "Observables/SerialObserver.swift",
        "Serial.swift",
        "Serialable.swift"
      ],
      "type" : "library"
    }
  ],
  "tools_version" : "5.6"
}
{
  "workspace" : {
    "name" : "spi-builder-workspace",
    "schemes" : [
      "SerialSwift"
    ]
  }
}
2026-04-13 04:40:58.541 xcodebuild[763:4374] [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 SerialSwift -destination generic/platform=iOS
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 SerialSwift -destination generic/platform=iOS
Resolve Package Graph
Resolve Package Graph
Resolved source packages:
  EventDrivenSwift: https://github.com/Flowduino/EventDrivenSwift.git @ 5.2.0
  SerialSwift: /Users/admin/builder/spi-builder-workspace
  ORSSerialPort: https://github.com/armadsen/ORSSerialPort.git @ 2.1.0
  ThreadSafeSwift: https://github.com/Flowduino/ThreadSafeSwift.git @ 1.1.0
  Observable: https://github.com/Flowduino/Observable.git @ 2.0.0
ComputePackagePrebuildTargetDependencyGraph
Prepare packages
CreateBuildRequest
SendProjectDescription
CreateBuildOperation
ComputeTargetDependencyGraph
note: Building targets in dependency order
note: Target dependency graph (10 targets)
    Target 'SerialSwift' in project 'SerialSwift'
        ➜ Explicit dependency on target 'SerialSwift' in project 'SerialSwift'
        ➜ Explicit dependency on target 'ThreadSafeSwift' in project 'ThreadSafeSwift'
        ➜ Explicit dependency on target 'Observable' in project 'Observable'
        ➜ Explicit dependency on target 'EventDrivenSwift' in project 'EventDrivenSwift'
        ➜ Explicit dependency on target 'ORSSerial' in project 'ORSSerialPort'
    Target 'SerialSwift' in project 'SerialSwift'
        ➜ Explicit dependency on target 'ThreadSafeSwift' in project 'ThreadSafeSwift'
        ➜ Explicit dependency on target 'Observable' in project 'Observable'
        ➜ Explicit dependency on target 'EventDrivenSwift' in project 'EventDrivenSwift'
        ➜ Explicit dependency on target 'ORSSerial' in project 'ORSSerialPort'
    Target 'ORSSerial' in project 'ORSSerialPort'
        ➜ Explicit dependency on target 'ORSSerial' in project 'ORSSerialPort'
    Target 'ORSSerial' in project 'ORSSerialPort' (no dependencies)
    Target 'EventDrivenSwift' in project 'EventDrivenSwift'
        ➜ Explicit dependency on target 'EventDrivenSwift' in project 'EventDrivenSwift'
        ➜ Explicit dependency on target 'ThreadSafeSwift' in project 'ThreadSafeSwift'
        ➜ Explicit dependency on target 'Observable' in project 'Observable'
    Target 'EventDrivenSwift' in project 'EventDrivenSwift'
        ➜ Explicit dependency on target 'ThreadSafeSwift' in project 'ThreadSafeSwift'
        ➜ Explicit dependency on target 'Observable' in project 'Observable'
    Target 'Observable' in project 'Observable'
        ➜ Explicit dependency on target 'Observable' in project 'Observable'
        ➜ Explicit dependency on target 'ThreadSafeSwift' in project 'ThreadSafeSwift'
    Target 'Observable' in project 'Observable'
        ➜ Explicit dependency on target 'ThreadSafeSwift' in project 'ThreadSafeSwift'
    Target 'ThreadSafeSwift' in project 'ThreadSafeSwift'
        ➜ Explicit dependency on target 'ThreadSafeSwift' in project 'ThreadSafeSwift'
    Target 'ThreadSafeSwift' in project 'ThreadSafeSwift' (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 -arch arm64 -isysroot /Applications/Xcode-26.4.0.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS26.4.sdk -x objective-c -c /dev/null
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/iPhoneOS.platform/Developer/SDKs/iPhoneOS26.4.sdk -x c -c /dev/null
ExecuteExternalTool /Applications/Xcode-26.4.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang -v -E -dM -arch arm64 -isysroot /Applications/Xcode-26.4.0.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS26.4.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: e5c4dc295822a91690963c708e77a9ef
Build description path: /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/XCBuildData/e5c4dc295822a91690963c708e77a9ef.xcbuilddata
error: The package product 'Observable' requires minimum platform version 13.0 for the iOS platform, but this target supports 12.0 (in target 'SerialSwift' from project 'SerialSwift')
error: The package product 'EventDrivenSwift' requires minimum platform version 13.0 for the iOS platform, but this target supports 12.0 (in target 'SerialSwift' from project 'SerialSwift')
2026-04-13 04:41:01.752 xcodebuild[767:4422] [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 SerialSwift
(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:
  EventDrivenSwift: https://github.com/Flowduino/EventDrivenSwift.git @ 5.2.0
  ThreadSafeSwift: https://github.com/Flowduino/ThreadSafeSwift.git @ 1.1.0
  ORSSerialPort: https://github.com/armadsen/ORSSerialPort.git @ 2.1.0
  SerialSwift: /Users/admin/builder/spi-builder-workspace
  Observable: https://github.com/Flowduino/Observable.git @ 2.0.0
resolved source packages: EventDrivenSwift, ThreadSafeSwift, ORSSerialPort, SerialSwift, Observable
2026-04-13 04:41:03.864 xcodebuild[818:4704] [MT] IDERunDestination: Supported platforms for the buildables in the current scheme is empty.
{
  "dependencies" : [
    {
      "identity" : "threadsafeswift",
      "requirement" : {
        "range" : [
          {
            "lower_bound" : "1.1.0",
            "upper_bound" : "2.0.0"
          }
        ]
      },
      "type" : "sourceControl",
      "url" : "https://github.com/Flowduino/ThreadSafeSwift.git"
    },
    {
      "identity" : "observable",
      "requirement" : {
        "range" : [
          {
            "lower_bound" : "2.0.0",
            "upper_bound" : "3.0.0"
          }
        ]
      },
      "type" : "sourceControl",
      "url" : "https://github.com/Flowduino/Observable.git"
    },
    {
      "identity" : "eventdrivenswift",
      "requirement" : {
        "range" : [
          {
            "lower_bound" : "5.0.0",
            "upper_bound" : "6.0.0"
          }
        ]
      },
      "type" : "sourceControl",
      "url" : "https://github.com/Flowduino/EventDrivenSwift.git"
    },
    {
      "identity" : "orsserialport",
      "requirement" : {
        "range" : [
          {
            "lower_bound" : "2.1.0",
            "upper_bound" : "3.0.0"
          }
        ]
      },
      "type" : "sourceControl",
      "url" : "https://github.com/armadsen/ORSSerialPort.git"
    }
  ],
  "manifest_display_name" : "SerialSwift",
  "name" : "SerialSwift",
  "path" : "/Users/admin/builder/spi-builder-workspace",
  "platforms" : [
    {
      "name" : "macos",
      "version" : "10.15"
    }
  ],
  "products" : [
    {
      "name" : "SerialSwift",
      "targets" : [
        "SerialSwift"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "SerialSwiftTests",
      "module_type" : "SwiftTarget",
      "name" : "SerialSwiftTests",
      "path" : "Tests/SerialSwiftTests",
      "product_dependencies" : [
        "ThreadSafeSwift",
        "Observable",
        "EventDrivenSwift",
        "ORSSerial"
      ],
      "sources" : [
        "SerialTests.swift"
      ],
      "target_dependencies" : [
        "SerialSwift"
      ],
      "type" : "test"
    },
    {
      "c99name" : "SerialSwift",
      "module_type" : "SwiftTarget",
      "name" : "SerialSwift",
      "path" : "Sources/SerialSwift",
      "product_dependencies" : [
        "ThreadSafeSwift",
        "Observable",
        "EventDrivenSwift",
        "ORSSerial"
      ],
      "product_memberships" : [
        "SerialSwift"
      ],
      "sources" : [
        "BaudRate.swift",
        "Events/SerialPortClosedEvent.swift",
        "Events/SerialPortDataReceivedEvent.swift",
        "Events/SerialPortErrorEvent.swift",
        "Events/SerialPortOpenedEvent.swift",
        "Events/SerialPortRemovedEvent.swift",
        "Observables/SerialObserver.swift",
        "Serial.swift",
        "Serialable.swift"
      ],
      "type" : "library"
    }
  ],
  "tools_version" : "5.6"
}
{
  "workspace" : {
    "name" : "spi-builder-workspace",
    "schemes" : [
      "SerialSwift"
    ]
  }
}
2026-04-13 04:41:05.062 xcodebuild[827:4766] [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 SerialSwift -destination generic/platform=iOS
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 SerialSwift -destination generic/platform=iOS
Resolve Package Graph
Resolved source packages:
  ORSSerialPort: https://github.com/armadsen/ORSSerialPort.git @ 2.1.0
  EventDrivenSwift: https://github.com/Flowduino/EventDrivenSwift.git @ 5.2.0
  Observable: https://github.com/Flowduino/Observable.git @ 2.0.0
  SerialSwift: /Users/admin/builder/spi-builder-workspace
  ThreadSafeSwift: https://github.com/Flowduino/ThreadSafeSwift.git @ 1.1.0
ComputePackagePrebuildTargetDependencyGraph
Prepare packages
CreateBuildRequest
SendProjectDescription
CreateBuildOperation
ComputeTargetDependencyGraph
note: Building targets in dependency order
note: Target dependency graph (10 targets)
    Target 'SerialSwift' in project 'SerialSwift'
        ➜ Explicit dependency on target 'SerialSwift' in project 'SerialSwift'
        ➜ Explicit dependency on target 'ThreadSafeSwift' in project 'ThreadSafeSwift'
        ➜ Explicit dependency on target 'Observable' in project 'Observable'
        ➜ Explicit dependency on target 'EventDrivenSwift' in project 'EventDrivenSwift'
        ➜ Explicit dependency on target 'ORSSerial' in project 'ORSSerialPort'
    Target 'SerialSwift' in project 'SerialSwift'
        ➜ Explicit dependency on target 'ThreadSafeSwift' in project 'ThreadSafeSwift'
        ➜ Explicit dependency on target 'Observable' in project 'Observable'
        ➜ Explicit dependency on target 'EventDrivenSwift' in project 'EventDrivenSwift'
        ➜ Explicit dependency on target 'ORSSerial' in project 'ORSSerialPort'
    Target 'ORSSerial' in project 'ORSSerialPort'
        ➜ Explicit dependency on target 'ORSSerial' in project 'ORSSerialPort'
    Target 'ORSSerial' in project 'ORSSerialPort' (no dependencies)
    Target 'EventDrivenSwift' in project 'EventDrivenSwift'
        ➜ Explicit dependency on target 'EventDrivenSwift' in project 'EventDrivenSwift'
        ➜ Explicit dependency on target 'ThreadSafeSwift' in project 'ThreadSafeSwift'
        ➜ Explicit dependency on target 'Observable' in project 'Observable'
    Target 'EventDrivenSwift' in project 'EventDrivenSwift'
        ➜ Explicit dependency on target 'ThreadSafeSwift' in project 'ThreadSafeSwift'
        ➜ Explicit dependency on target 'Observable' in project 'Observable'
    Target 'Observable' in project 'Observable'
        ➜ Explicit dependency on target 'Observable' in project 'Observable'
        ➜ Explicit dependency on target 'ThreadSafeSwift' in project 'ThreadSafeSwift'
    Target 'Observable' in project 'Observable'
        ➜ Explicit dependency on target 'ThreadSafeSwift' in project 'ThreadSafeSwift'
    Target 'ThreadSafeSwift' in project 'ThreadSafeSwift'
        ➜ Explicit dependency on target 'ThreadSafeSwift' in project 'ThreadSafeSwift'
    Target 'ThreadSafeSwift' in project 'ThreadSafeSwift' (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 -arch arm64 -isysroot /Applications/Xcode-26.4.0.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS26.4.sdk -x objective-c -c /dev/null
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/iPhoneOS.platform/Developer/SDKs/iPhoneOS26.4.sdk -x c -c /dev/null
ExecuteExternalTool /Applications/Xcode-26.4.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang -v -E -dM -arch arm64 -isysroot /Applications/Xcode-26.4.0.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS26.4.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: e5c4dc295822a91690963c708e77a9ef
Build description path: /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/XCBuildData/e5c4dc295822a91690963c708e77a9ef.xcbuilddata
error: The package product 'Observable' requires minimum platform version 13.0 for the iOS platform, but this target supports 12.0 (in target 'SerialSwift' from project 'SerialSwift')
error: The package product 'EventDrivenSwift' requires minimum platform version 13.0 for the iOS platform, but this target supports 12.0 (in target 'SerialSwift' from project 'SerialSwift')
2026-04-13 04:41:06.069 xcodebuild[829:4795] [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 SerialSwift
(1 failure)
BUILD FAILURE 6.3 iOS