Swift Package Index

Build Information

Failed to build DL4STensorboard, reference 0.1.0 (4d9803), with Swift 6.4 for visionOS using Xcode 27.0 on 15 Sep 2026 21:15:59 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 DL4STensorboard -destination generic/platform=xrOS

Build Log

========================================
RunAll
========================================
Builder version: 5.1.0
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/palle-k/DL4S-Tensorboard.git
Reference: 0.1.0
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/palle-k/DL4S-Tensorboard
 * tag               0.1.0      -> FETCH_HEAD
HEAD is now at 4d98033 minor changes
Cloned https://github.com/palle-k/DL4S-Tensorboard.git
Revision (git rev-parse @):
4d98033d0f414a8db4c39792c0a36e045c1dd1c1
SUCCESS checkout https://github.com/palle-k/DL4S-Tensorboard.git at 0.1.0
========================================
Build
========================================
Selected platform:         visionOS
Swift version:             6.4
Building package at path:  $PWD
https://github.com/palle-k/DL4S-Tensorboard.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/palle-k/DL4S.git
Fetching from https://github.com/twostraws/SwiftGD
Fetching from https://github.com/apple/swift-protobuf.git
Creating working copy of package ‘DL4S’
Checking out master (a06a1d9) of package ‘DL4S’
Creating working copy of package ‘swift-protobuf’
Checking out 1.38.1 of package ‘swift-protobuf’
Creating working copy of package ‘SwiftGD’
Checking out 2.6.0 of package ‘SwiftGD’
failed to retrieve search paths with pkg-config; maybe pkg-config is not installedyou may be able to install gdlib using your system-packager:
    brew install gd
Resolve Package Graph
you may be able to install gdlib using your system-packager:
    brew install gd
Resolved source packages:
  DL4STensorboard: /Users/admin/builder/spi-builder-workspace
  DL4S: https://github.com/palle-k/DL4S.git @ master (a06a1d9)
  SwiftGD: https://github.com/twostraws/SwiftGD @ 2.6.0
  SwiftProtobuf: https://github.com/apple/swift-protobuf.git @ 1.38.1
resolved source packages: DL4STensorboard, DL4S, SwiftGD, SwiftProtobuf
2026-09-15 17:15:04.912 xcodebuild[529:3034] [MT] IDERunDestination: Supported platforms for the buildables in the current scheme is empty.
{
  "dependencies" : [
    {
      "identity" : "dl4s",
      "requirement" : {
        "branch" : [
          "master"
        ]
      },
      "type" : "sourceControl",
      "url" : "https://github.com/palle-k/DL4S.git"
    },
    {
      "identity" : "swift-protobuf",
      "requirement" : {
        "range" : [
          {
            "lower_bound" : "1.6.0",
            "upper_bound" : "2.0.0"
          }
        ]
      },
      "type" : "sourceControl",
      "url" : "https://github.com/apple/swift-protobuf.git"
    },
    {
      "identity" : "swiftgd",
      "requirement" : {
        "range" : [
          {
            "lower_bound" : "2.0.0",
            "upper_bound" : "3.0.0"
          }
        ]
      },
      "type" : "sourceControl",
      "url" : "https://github.com/twostraws/SwiftGD"
    }
  ],
  "manifest_display_name" : "DL4STensorboard",
  "name" : "DL4STensorboard",
  "path" : "/Users/admin/builder/spi-builder-workspace",
  "platforms" : [
    {
      "name" : "ios",
      "version" : "13.0"
    },
    {
      "name" : "macos",
      "version" : "10.15"
    },
    {
      "name" : "watchos",
      "version" : "6.0"
    },
    {
      "name" : "tvos",
      "version" : "13.0"
    }
  ],
  "products" : [
    {
      "name" : "DL4STensorboard",
      "targets" : [
        "DL4STensorboard"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "DL4STensorboardTests",
      "module_type" : "SwiftTarget",
      "name" : "DL4STensorboardTests",
      "path" : "Tests/DL4STensorboardTests",
      "sources" : [
        "DL4S_TensorboardTests.swift",
        "HistogramTests.swift",
        "XCTestManifests.swift"
      ],
      "target_dependencies" : [
        "DL4STensorboard"
      ],
      "type" : "test"
    },
    {
      "c99name" : "DL4STensorboard",
      "module_type" : "SwiftTarget",
      "name" : "DL4STensorboard",
      "path" : "Sources/DL4STensorboard",
      "product_dependencies" : [
        "DL4S",
        "SwiftProtobuf",
        "SwiftGD"
      ],
      "product_memberships" : [
        "DL4STensorboard"
      ],
      "sources" : [
        "Autogenerated/event.pb.swift",
        "Autogenerated/resource_handle.pb.swift",
        "Autogenerated/summary.pb.swift",
        "Autogenerated/tensor.pb.swift",
        "Autogenerated/tensor_shape.pb.swift",
        "Autogenerated/types.pb.swift",
        "CRC.swift",
        "Ext.swift",
        "Histogram.swift",
        "TSVWriter.swift",
        "TensorboardWriter.swift"
      ],
      "type" : "library"
    }
  ],
  "tools_version" : "5.2"
}
{
  "workspace" : {
    "name" : "DL4STensorboard",
    "schemes" : [
      "DL4STensorboard"
    ]
  }
}
2026-09-15 17:15:47.441 xcodebuild[766:4707] [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 DL4STensorboard -destination generic/platform=xrOS
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 DL4STensorboard -destination generic/platform=xrOS
Resolve Package Graph
failed to retrieve search paths with pkg-config; maybe pkg-config is not installedyou may be able to install gdlib using your system-packager:
    brew install gd
Resolve Package Graph
you may be able to install gdlib using your system-packager:
    brew install gd
Resolved source packages:
  SwiftProtobuf: https://github.com/apple/swift-protobuf.git @ 1.38.1
  SwiftGD: https://github.com/twostraws/SwiftGD @ 2.6.0
  DL4STensorboard: /Users/admin/builder/spi-builder-workspace
  DL4S: https://github.com/palle-k/DL4S.git @ master (a06a1d9)
ComputePackagePrebuildTargetDependencyGraph
Prepare packages
CreateBuildRequest
SendProjectDescription
CreateBuildOperation
ComputeTargetDependencyGraph
note: Building targets in dependency order
note: Target dependency graph (11 targets)
    Target 'DL4STensorboard-product' in project 'DL4STensorboard'
        ➜ Explicit dependency on target 'DL4STensorboard' in project 'DL4STensorboard'
        ➜ Explicit dependency on target 'DL4S-product' in project 'DL4S'
        ➜ Explicit dependency on target 'SwiftProtobuf-product' in project 'SwiftProtobuf'
        ➜ Explicit dependency on target 'SwiftGD-product' in project 'SwiftGD'
    Target 'DL4STensorboard' in project 'DL4STensorboard'
        ➜ Explicit dependency on target 'DL4S-product' in project 'DL4S'
        ➜ Explicit dependency on target 'SwiftProtobuf-product' in project 'SwiftProtobuf'
        ➜ Explicit dependency on target 'SwiftGD-product' in project 'SwiftGD'
    Target 'SwiftGD-product' in project 'SwiftGD'
        ➜ Explicit dependency on target 'SwiftGD' in project 'SwiftGD'
    Target 'SwiftGD' in project 'SwiftGD'
        ➜ Explicit dependency on target 'gd' in project 'SwiftGD'
    Target 'gd' in project 'SwiftGD' (no dependencies)
    Target 'SwiftProtobuf-product' in project 'SwiftProtobuf'
        ➜ Explicit dependency on target 'SwiftProtobuf' in project 'SwiftProtobuf'
        ➜ Explicit dependency on target 'SwiftProtobuf_SwiftProtobuf' in project 'SwiftProtobuf'
    Target 'SwiftProtobuf' in project 'SwiftProtobuf'
        ➜ Explicit dependency on target 'SwiftProtobuf_SwiftProtobuf' in project 'SwiftProtobuf'
    Target 'SwiftProtobuf_SwiftProtobuf' in project 'SwiftProtobuf' (no dependencies)
    Target 'DL4S-product' in project 'DL4S'
        ➜ Explicit dependency on target 'DL4S' in project 'DL4S'
        ➜ Explicit dependency on target 'MKL' in project 'DL4S'
    Target 'DL4S' in project 'DL4S'
        ➜ Explicit dependency on target 'MKL' in project 'DL4S'
    Target 'MKL' in project 'DL4S' (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/XROS.platform/Developer/SDKs/XROS27.0.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/XROS.platform/Developer/SDKs/XROS27.0.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
ReadFileContents /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/share/docc/features.json
Build description signature: 3e2b9fc2553a82c899ce053384cb3095
Build description path: /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/XCBuildData/3e2b9fc2553a82c899ce053384cb3095.xcbuilddata
error: The package product 'DL4S-product' requires minimum platform version 2.0 for the visionOS platform, but this target supports 1.0 (in target 'DL4STensorboard' from project 'DL4STensorboard')
2026-09-15 17:15:51.067 xcodebuild[775:4773] [MT] IDERunDestination: Supported platforms for the buildables in the current scheme is empty.
** BUILD FAILED **
The following build commands failed:
	Building workspace DL4STensorboard with scheme DL4STensorboard
(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
failed to retrieve search paths with pkg-config; maybe pkg-config is not installedyou may be able to install gdlib using your system-packager:
    brew install gd
Resolved source packages:
  DL4STensorboard: /Users/admin/builder/spi-builder-workspace
  SwiftProtobuf: https://github.com/apple/swift-protobuf.git @ 1.38.1
  DL4S: https://github.com/palle-k/DL4S.git @ master (a06a1d9)
  SwiftGD: https://github.com/twostraws/SwiftGD @ 2.6.0
resolved source packages: DL4STensorboard, SwiftProtobuf, DL4S, SwiftGD
2026-09-15 17:15:54.384 xcodebuild[824:5031] [MT] IDERunDestination: Supported platforms for the buildables in the current scheme is empty.
{
  "dependencies" : [
    {
      "identity" : "dl4s",
      "requirement" : {
        "branch" : [
          "master"
        ]
      },
      "type" : "sourceControl",
      "url" : "https://github.com/palle-k/DL4S.git"
    },
    {
      "identity" : "swift-protobuf",
      "requirement" : {
        "range" : [
          {
            "lower_bound" : "1.6.0",
            "upper_bound" : "2.0.0"
          }
        ]
      },
      "type" : "sourceControl",
      "url" : "https://github.com/apple/swift-protobuf.git"
    },
    {
      "identity" : "swiftgd",
      "requirement" : {
        "range" : [
          {
            "lower_bound" : "2.0.0",
            "upper_bound" : "3.0.0"
          }
        ]
      },
      "type" : "sourceControl",
      "url" : "https://github.com/twostraws/SwiftGD"
    }
  ],
  "manifest_display_name" : "DL4STensorboard",
  "name" : "DL4STensorboard",
  "path" : "/Users/admin/builder/spi-builder-workspace",
  "platforms" : [
    {
      "name" : "ios",
      "version" : "13.0"
    },
    {
      "name" : "macos",
      "version" : "10.15"
    },
    {
      "name" : "watchos",
      "version" : "6.0"
    },
    {
      "name" : "tvos",
      "version" : "13.0"
    }
  ],
  "products" : [
    {
      "name" : "DL4STensorboard",
      "targets" : [
        "DL4STensorboard"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "DL4STensorboardTests",
      "module_type" : "SwiftTarget",
      "name" : "DL4STensorboardTests",
      "path" : "Tests/DL4STensorboardTests",
      "sources" : [
        "DL4S_TensorboardTests.swift",
        "HistogramTests.swift",
        "XCTestManifests.swift"
      ],
      "target_dependencies" : [
        "DL4STensorboard"
      ],
      "type" : "test"
    },
    {
      "c99name" : "DL4STensorboard",
      "module_type" : "SwiftTarget",
      "name" : "DL4STensorboard",
      "path" : "Sources/DL4STensorboard",
      "product_dependencies" : [
        "DL4S",
        "SwiftProtobuf",
        "SwiftGD"
      ],
      "product_memberships" : [
        "DL4STensorboard"
      ],
      "sources" : [
        "Autogenerated/event.pb.swift",
        "Autogenerated/resource_handle.pb.swift",
        "Autogenerated/summary.pb.swift",
        "Autogenerated/tensor.pb.swift",
        "Autogenerated/tensor_shape.pb.swift",
        "Autogenerated/types.pb.swift",
        "CRC.swift",
        "Ext.swift",
        "Histogram.swift",
        "TSVWriter.swift",
        "TensorboardWriter.swift"
      ],
      "type" : "library"
    }
  ],
  "tools_version" : "5.2"
}
{
  "workspace" : {
    "name" : "DL4STensorboard",
    "schemes" : [
      "DL4STensorboard"
    ]
  }
}
2026-09-15 17:15:56.453 xcodebuild[840:5113] [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 DL4STensorboard -destination generic/platform=xrOS
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 DL4STensorboard -destination generic/platform=xrOS
Resolve Package Graph
failed to retrieve search paths with pkg-config; maybe pkg-config is not installedyou may be able to install gdlib using your system-packager:
    brew install gd
Resolved source packages:
  DL4STensorboard: /Users/admin/builder/spi-builder-workspace
  SwiftProtobuf: https://github.com/apple/swift-protobuf.git @ 1.38.1
  DL4S: https://github.com/palle-k/DL4S.git @ master (a06a1d9)
  SwiftGD: https://github.com/twostraws/SwiftGD @ 2.6.0
ComputePackagePrebuildTargetDependencyGraph
Prepare packages
CreateBuildRequest
SendProjectDescription
CreateBuildOperation
ComputeTargetDependencyGraph
note: Building targets in dependency order
note: Target dependency graph (11 targets)
    Target 'DL4STensorboard-product' in project 'DL4STensorboard'
        ➜ Explicit dependency on target 'DL4STensorboard' in project 'DL4STensorboard'
        ➜ Explicit dependency on target 'DL4S-product' in project 'DL4S'
        ➜ Explicit dependency on target 'SwiftProtobuf-product' in project 'SwiftProtobuf'
        ➜ Explicit dependency on target 'SwiftGD-product' in project 'SwiftGD'
    Target 'DL4STensorboard' in project 'DL4STensorboard'
        ➜ Explicit dependency on target 'DL4S-product' in project 'DL4S'
        ➜ Explicit dependency on target 'SwiftProtobuf-product' in project 'SwiftProtobuf'
        ➜ Explicit dependency on target 'SwiftGD-product' in project 'SwiftGD'
    Target 'SwiftGD-product' in project 'SwiftGD'
        ➜ Explicit dependency on target 'SwiftGD' in project 'SwiftGD'
    Target 'SwiftGD' in project 'SwiftGD'
        ➜ Explicit dependency on target 'gd' in project 'SwiftGD'
    Target 'gd' in project 'SwiftGD' (no dependencies)
    Target 'SwiftProtobuf-product' in project 'SwiftProtobuf'
        ➜ Explicit dependency on target 'SwiftProtobuf' in project 'SwiftProtobuf'
        ➜ Explicit dependency on target 'SwiftProtobuf_SwiftProtobuf' in project 'SwiftProtobuf'
    Target 'SwiftProtobuf' in project 'SwiftProtobuf'
        ➜ Explicit dependency on target 'SwiftProtobuf_SwiftProtobuf' in project 'SwiftProtobuf'
    Target 'SwiftProtobuf_SwiftProtobuf' in project 'SwiftProtobuf' (no dependencies)
    Target 'DL4S-product' in project 'DL4S'
        ➜ Explicit dependency on target 'DL4S' in project 'DL4S'
        ➜ Explicit dependency on target 'MKL' in project 'DL4S'
    Target 'DL4S' in project 'DL4S'
        ➜ Explicit dependency on target 'MKL' in project 'DL4S'
    Target 'MKL' in project 'DL4S' (no dependencies)
GatherProvisioningInputs
CreateBuildDescription
error: The package product 'DL4S-product' requires minimum platform version 2.0 for the visionOS platform, but this target supports 1.0 (in target 'DL4STensorboard' from project 'DL4STensorboard')
2026-09-15 17:15:58.277 xcodebuild[849:5151] [MT] IDERunDestination: Supported platforms for the buildables in the current scheme is empty.
** BUILD FAILED **
The following build commands failed:
	Building workspace DL4STensorboard with scheme DL4STensorboard
(1 failure)
BUILD FAILURE 6.4 visionOS