Swift Package Index

Build Information

Failed to build Song, reference 0.2.8 (899424), with Swift 6.4 for iOS using Xcode 27.0 on 21 Sep 2026 10:39:58 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 Song-Package -destination generic/platform=iOS

Build Log

========================================
RunAll
========================================
Builder version: 5.1.0
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/OperatorFoundation/Song.git
Reference: 0.2.8
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/OperatorFoundation/Song
 * tag               0.2.8      -> FETCH_HEAD
HEAD is now at 8994246 Update Package.swift
Cloned https://github.com/OperatorFoundation/Song.git
Revision (git rev-parse @):
8994246049f93f0fe4da206cf1c0e6c090050cdb
SUCCESS checkout https://github.com/OperatorFoundation/Song.git at 0.2.8
========================================
Build
========================================
Selected platform:         iOS
Swift version:             6.4
Building package at path:  $PWD
https://github.com/OperatorFoundation/Song.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/OperatorFoundation/Net
Fetching from https://github.com/OperatorFoundation/swift-ast
Fetching from https://github.com/OperatorFoundation/Datable
Creating working copy of package ‘Datable’
Checking out 4.0.1 of package ‘Datable’
Creating working copy of package ‘Net’
Checking out 0.0.11 of package ‘Net’
Creating working copy of package ‘swift-ast’
Checking out 0.19.12 of package ‘swift-ast’
Resolve Package Graph
Resolved source packages:
  swift-ast: https://github.com/OperatorFoundation/swift-ast @ 0.19.12
  Song: /Users/admin/builder/spi-builder-workspace
  Net: https://github.com/OperatorFoundation/Net @ 0.0.11
  Datable: https://github.com/OperatorFoundation/Datable @ 4.0.1
resolved source packages: swift-ast, Song, Net, Datable
2026-09-21 06:39:14.670 xcodebuild[529:3024] [MT] IDERunDestination: Supported platforms for the buildables in the current scheme is empty.
{
  "dependencies" : [
    {
      "identity" : "swift-ast",
      "requirement" : {
        "range" : [
          {
            "lower_bound" : "0.19.12",
            "upper_bound" : "1.0.0"
          }
        ]
      },
      "type" : "sourceControl",
      "url" : "https://github.com/OperatorFoundation/swift-ast"
    },
    {
      "identity" : "datable",
      "requirement" : {
        "range" : [
          {
            "lower_bound" : "4.0.1",
            "upper_bound" : "5.0.0"
          }
        ]
      },
      "type" : "sourceControl",
      "url" : "https://github.com/OperatorFoundation/Datable"
    },
    {
      "identity" : "net",
      "requirement" : {
        "range" : [
          {
            "lower_bound" : "0.0.11",
            "upper_bound" : "1.0.0"
          }
        ]
      },
      "type" : "sourceControl",
      "url" : "https://github.com/OperatorFoundation/Net"
    }
  ],
  "manifest_display_name" : "Song",
  "name" : "Song",
  "path" : "/Users/admin/builder/spi-builder-workspace",
  "platforms" : [
    {
      "name" : "macos",
      "version" : "14.0"
    },
    {
      "name" : "ios",
      "version" : "15.0"
    }
  ],
  "products" : [
    {
      "name" : "Song",
      "targets" : [
        "Song"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    },
    {
      "name" : "Composition",
      "targets" : [
        "Composition"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    },
    {
      "name" : "Chorus",
      "targets" : [
        "Chorus"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    },
    {
      "name" : "Symphony",
      "targets" : [
        "Symphony"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    },
    {
      "name" : "Package",
      "targets" : [
        "Package"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    },
    {
      "name" : "Expressible",
      "targets" : [
        "Expressible"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    },
    {
      "name" : "SongExpressible",
      "targets" : [
        "SongExpressible"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    },
    {
      "name" : "compose",
      "targets" : [
        "compose"
      ],
      "type" : {
        "executable" : null
      }
    },
    {
      "name" : "choir",
      "targets" : [
        "choir"
      ],
      "type" : {
        "executable" : null
      }
    }
  ],
  "swift_languages_versions" : [
    "5"
  ],
  "targets" : [
    {
      "c99name" : "compose",
      "module_type" : "SwiftTarget",
      "name" : "compose",
      "path" : "Sources/compose",
      "product_dependencies" : [
        "SwiftAST"
      ],
      "product_memberships" : [
        "compose"
      ],
      "sources" : [
        "main.swift"
      ],
      "target_dependencies" : [
        "Composition"
      ],
      "type" : "executable"
    },
    {
      "c99name" : "choir",
      "module_type" : "SwiftTarget",
      "name" : "choir",
      "path" : "Sources/choir",
      "product_dependencies" : [
        "Datable",
        "SwiftAST"
      ],
      "product_memberships" : [
        "choir"
      ],
      "sources" : [
        "main.swift"
      ],
      "target_dependencies" : [
        "Chorus",
        "Package"
      ],
      "type" : "executable"
    },
    {
      "c99name" : "SymphonyTests",
      "module_type" : "SwiftTarget",
      "name" : "SymphonyTests",
      "path" : "Tests/SymphonyTests",
      "product_dependencies" : [
        "Datable"
      ],
      "sources" : [
        "SymphonyTests.swift"
      ],
      "target_dependencies" : [
        "Song",
        "Symphony"
      ],
      "type" : "test"
    },
    {
      "c99name" : "Symphony",
      "module_type" : "SwiftTarget",
      "name" : "Symphony",
      "path" : "Sources/Symphony",
      "product_memberships" : [
        "Symphony"
      ],
      "sources" : [
        "Dictionary.swift",
        "ReadOnlySubkeySequence.swift",
        "Sequence.swift",
        "SubkeySequence.swift",
        "Symphony.swift",
        "Value.swift",
        "ValueDictionary.swift",
        "ValueSequence.swift"
      ],
      "target_dependencies" : [
        "Song"
      ],
      "type" : "library"
    },
    {
      "c99name" : "SongTests",
      "module_type" : "SwiftTarget",
      "name" : "SongTests",
      "path" : "Tests/SongTests",
      "product_dependencies" : [
        "Datable"
      ],
      "sources" : [
        "SongTests.swift"
      ],
      "target_dependencies" : [
        "Song",
        "Composition"
      ],
      "type" : "test"
    },
    {
      "c99name" : "SongExpressible",
      "module_type" : "SwiftTarget",
      "name" : "SongExpressible",
      "path" : "Sources/SongExpressible",
      "product_memberships" : [
        "SongExpressible"
      ],
      "sources" : [
        "SongExpressible.swift"
      ],
      "target_dependencies" : [
        "Song",
        "Expressible"
      ],
      "type" : "library"
    },
    {
      "c99name" : "Song",
      "module_type" : "SwiftTarget",
      "name" : "Song",
      "path" : "Sources/Song",
      "product_dependencies" : [
        "SwiftAST",
        "Datable"
      ],
      "product_memberships" : [
        "Song",
        "Symphony",
        "SongExpressible"
      ],
      "sources" : [
        "Decoding/SongDecoder.swift",
        "Decoding/SongKeyedDecodingContainer.swift",
        "Decoding/SongSingleValueDecodingContainer.swift",
        "Decoding/SongUnkeyedDecodingContainer.swift",
        "Encoding/SongEncoder.swift",
        "Encoding/SongKeyedEncodingContainer.swift",
        "Encoding/SongSingleValueEncodingContainer.swift",
        "Encoding/SongUnkeyedEncodingContainer.swift"
      ],
      "target_dependencies" : [
        "Expressible"
      ],
      "type" : "library"
    },
    {
      "c99name" : "Package",
      "module_type" : "SwiftTarget",
      "name" : "Package",
      "path" : "Sources/Package",
      "product_memberships" : [
        "Package",
        "choir"
      ],
      "sources" : [
        "Package.swift"
      ],
      "type" : "library"
    },
    {
      "c99name" : "ExpressibleTests",
      "module_type" : "SwiftTarget",
      "name" : "ExpressibleTests",
      "path" : "Tests/ExpressibleTests",
      "product_dependencies" : [
        "Net"
      ],
      "sources" : [
        "ExpressibleTests.swift"
      ],
      "target_dependencies" : [
        "Song",
        "Expressible",
        "SongExpressible"
      ],
      "type" : "test"
    },
    {
      "c99name" : "Expressible",
      "module_type" : "SwiftTarget",
      "name" : "Expressible",
      "path" : "Sources/Expressible",
      "product_dependencies" : [
        "Net",
        "SwiftAST"
      ],
      "product_memberships" : [
        "Song",
        "Symphony",
        "Expressible",
        "SongExpressible"
      ],
      "sources" : [
        "Expressible.swift",
        "IPv4Address+Expressible.swift",
        "NWInterface_InterfaceType+Expressible.swift"
      ],
      "type" : "library"
    },
    {
      "c99name" : "Composition",
      "module_type" : "SwiftTarget",
      "name" : "Composition",
      "path" : "Sources/Composition",
      "product_dependencies" : [
        "Datable",
        "Net"
      ],
      "product_memberships" : [
        "Composition",
        "compose"
      ],
      "sources" : [
        "Composition.swift"
      ],
      "type" : "library"
    },
    {
      "c99name" : "Chorus",
      "module_type" : "SwiftTarget",
      "name" : "Chorus",
      "path" : "Sources/Chorus",
      "product_memberships" : [
        "Chorus",
        "choir"
      ],
      "sources" : [
        "Chorus.swift"
      ],
      "type" : "library"
    }
  ],
  "tools_version" : "5.9"
}
{
  "workspace" : {
    "name" : "Song",
    "schemes" : [
      "choir",
      "Chorus",
      "compose",
      "Composition",
      "Expressible",
      "Package",
      "Song",
      "Song-Package",
      "SongExpressible",
      "Symphony"
    ]
  }
}
2026-09-21 06:39:47.991 xcodebuild[738:4308] [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 Song-Package -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 Song-Package -destination generic/platform=iOS
Resolve Package Graph
Resolve Package Graph
Resolved source packages:
  Song: /Users/admin/builder/spi-builder-workspace
  Net: https://github.com/OperatorFoundation/Net @ 0.0.11
  Datable: https://github.com/OperatorFoundation/Datable @ 4.0.1
  swift-ast: https://github.com/OperatorFoundation/swift-ast @ 0.19.12
ComputePackagePrebuildTargetDependencyGraph
Prepare packages
CreateBuildRequest
SendProjectDescription
CreateBuildOperation
ComputeTargetDependencyGraph
note: Building targets in dependency order
note: Target dependency graph (28 targets)
    Target 'choir-product' in project 'Song'
        ➜ Explicit dependency on target 'Chorus' in project 'Song'
        ➜ Explicit dependency on target 'Package' in project 'Song'
        ➜ Explicit dependency on target 'Datable-product' in project 'Datable'
        ➜ Explicit dependency on target 'SwiftAST-product' in project 'swift-ast'
    Target 'compose-product' in project 'Song'
        ➜ Explicit dependency on target 'Composition' in project 'Song'
        ➜ Explicit dependency on target 'Datable-product' in project 'Datable'
        ➜ Explicit dependency on target 'Net-product' in project 'Net'
        ➜ Explicit dependency on target 'SwiftAST-product' in project 'swift-ast'
    Target 'SongExpressible-product' in project 'Song'
        ➜ Explicit dependency on target 'SongExpressible' in project 'Song'
        ➜ Explicit dependency on target 'Expressible' in project 'Song'
        ➜ Explicit dependency on target 'Song' in project 'Song'
        ➜ Explicit dependency on target 'Net-product' in project 'Net'
        ➜ Explicit dependency on target 'SwiftAST-product' in project 'swift-ast'
        ➜ Explicit dependency on target 'Datable-product' in project 'Datable'
    Target 'SongExpressible' in project 'Song'
        ➜ Explicit dependency on target 'Expressible' in project 'Song'
        ➜ Explicit dependency on target 'Song' in project 'Song'
        ➜ Explicit dependency on target 'Net-product' in project 'Net'
        ➜ Explicit dependency on target 'SwiftAST-product' in project 'swift-ast'
        ➜ Explicit dependency on target 'Datable-product' in project 'Datable'
    Target 'Expressible-product' in project 'Song'
        ➜ Explicit dependency on target 'Expressible' in project 'Song'
        ➜ Explicit dependency on target 'Net-product' in project 'Net'
        ➜ Explicit dependency on target 'SwiftAST-product' in project 'swift-ast'
    Target 'Package-product' in project 'Song'
        ➜ Explicit dependency on target 'Package' in project 'Song'
    Target 'Package' in project 'Song' (no dependencies)
    Target 'Symphony-product' in project 'Song'
        ➜ Explicit dependency on target 'Symphony' in project 'Song'
        ➜ Explicit dependency on target 'Expressible' in project 'Song'
        ➜ Explicit dependency on target 'Song' in project 'Song'
        ➜ Explicit dependency on target 'Net-product' in project 'Net'
        ➜ Explicit dependency on target 'SwiftAST-product' in project 'swift-ast'
        ➜ Explicit dependency on target 'Datable-product' in project 'Datable'
    Target 'Symphony' in project 'Song'
        ➜ Explicit dependency on target 'Expressible' in project 'Song'
        ➜ Explicit dependency on target 'Song' in project 'Song'
        ➜ Explicit dependency on target 'Net-product' in project 'Net'
        ➜ Explicit dependency on target 'SwiftAST-product' in project 'swift-ast'
        ➜ Explicit dependency on target 'Datable-product' in project 'Datable'
    Target 'Chorus-product' in project 'Song'
        ➜ Explicit dependency on target 'Chorus' in project 'Song'
    Target 'Chorus' in project 'Song' (no dependencies)
    Target 'Composition-product' in project 'Song'
        ➜ Explicit dependency on target 'Composition' in project 'Song'
        ➜ Explicit dependency on target 'Datable-product' in project 'Datable'
        ➜ Explicit dependency on target 'Net-product' in project 'Net'
    Target 'Composition' in project 'Song'
        ➜ Explicit dependency on target 'Datable-product' in project 'Datable'
        ➜ Explicit dependency on target 'Net-product' in project 'Net'
    Target 'Song-product' in project 'Song'
        ➜ Explicit dependency on target 'Song' in project 'Song'
        ➜ Explicit dependency on target 'Expressible' in project 'Song'
        ➜ Explicit dependency on target 'Net-product' in project 'Net'
        ➜ Explicit dependency on target 'SwiftAST-product' in project 'swift-ast'
        ➜ Explicit dependency on target 'Datable-product' in project 'Datable'
    Target 'Song' in project 'Song'
        ➜ Explicit dependency on target 'Expressible' in project 'Song'
        ➜ Explicit dependency on target 'Net-product' in project 'Net'
        ➜ Explicit dependency on target 'SwiftAST-product' in project 'swift-ast'
        ➜ Explicit dependency on target 'Datable-product' in project 'Datable'
    Target 'Expressible' in project 'Song'
        ➜ Explicit dependency on target 'Net-product' in project 'Net'
        ➜ Explicit dependency on target 'SwiftAST-product' in project 'swift-ast'
    Target 'SwiftAST-product' in project 'swift-ast'
        ➜ Explicit dependency on target 'Bocho' in project 'swift-ast'
        ➜ Explicit dependency on target 'Source' in project 'swift-ast'
        ➜ Explicit dependency on target 'Diagnostic' in project 'swift-ast'
        ➜ Explicit dependency on target 'AST' in project 'swift-ast'
        ➜ Explicit dependency on target 'Lexer' in project 'swift-ast'
        ➜ Explicit dependency on target 'Parser' in project 'swift-ast'
        ➜ Explicit dependency on target 'Sema' in project 'swift-ast'
    Target 'Sema' in project 'swift-ast'
        ➜ Explicit dependency on target 'Bocho' in project 'swift-ast'
        ➜ Explicit dependency on target 'Source' in project 'swift-ast'
        ➜ Explicit dependency on target 'Diagnostic' in project 'swift-ast'
        ➜ Explicit dependency on target 'AST' in project 'swift-ast'
    Target 'Parser' in project 'swift-ast'
        ➜ Explicit dependency on target 'Bocho' in project 'swift-ast'
        ➜ Explicit dependency on target 'Source' in project 'swift-ast'
        ➜ Explicit dependency on target 'Diagnostic' in project 'swift-ast'
        ➜ Explicit dependency on target 'AST' in project 'swift-ast'
        ➜ Explicit dependency on target 'Lexer' in project 'swift-ast'
    Target 'Lexer' in project 'swift-ast'
        ➜ Explicit dependency on target 'Bocho' in project 'swift-ast'
        ➜ Explicit dependency on target 'Source' in project 'swift-ast'
        ➜ Explicit dependency on target 'Diagnostic' in project 'swift-ast'
    Target 'AST' in project 'swift-ast'
        ➜ Explicit dependency on target 'Bocho' in project 'swift-ast'
        ➜ Explicit dependency on target 'Source' in project 'swift-ast'
        ➜ Explicit dependency on target 'Diagnostic' in project 'swift-ast'
    Target 'Diagnostic' in project 'swift-ast'
        ➜ Explicit dependency on target 'Bocho' in project 'swift-ast'
        ➜ Explicit dependency on target 'Source' in project 'swift-ast'
    Target 'Source' in project 'swift-ast'
        ➜ Explicit dependency on target 'Bocho' in project 'swift-ast'
    Target 'Bocho' in project 'swift-ast' (no dependencies)
    Target 'Net-product' in project 'Net'
        ➜ Explicit dependency on target 'Net' in project 'Net'
        ➜ Explicit dependency on target 'Datable-product' in project 'Datable'
    Target 'Net' in project 'Net'
        ➜ Explicit dependency on target 'Datable-product' in project 'Datable'
    Target 'Datable-product' in project 'Datable'
        ➜ Explicit dependency on target 'Datable' in project 'Datable'
    Target 'Datable' in project 'Datable' (no dependencies)
GatherProvisioningInputs
CreateBuildDescription
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/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/ld -version_details
Build description signature: 6bac1bcf1010a36971b6d971dd52b632
Build description path: /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/XCBuildData/6bac1bcf1010a36971b6d971dd52b632.xcbuilddata
error: The package product 'Net-product' requires minimum platform version 16.0 for the iOS platform, but this target supports 15.0 (in target 'Symphony' from project 'Song')
error: The package product 'Net-product' requires minimum platform version 16.0 for the iOS platform, but this target supports 15.0 (in target 'compose-product' from project 'Song')
error: The package product 'Net-product' requires minimum platform version 16.0 for the iOS platform, but this target supports 15.0 (in target 'Expressible' from project 'Song')
error: The package product 'Net-product' requires minimum platform version 16.0 for the iOS platform, but this target supports 15.0 (in target 'SongExpressible' from project 'Song')
error: The package product 'Net-product' requires minimum platform version 16.0 for the iOS platform, but this target supports 15.0 (in target 'Song' from project 'Song')
error: The package product 'Net-product' requires minimum platform version 16.0 for the iOS platform, but this target supports 15.0 (in target 'Composition' from project 'Song')
2026-09-21 06:39:51.149 xcodebuild[759:4513] [MT] IDERunDestination: Supported platforms for the buildables in the current scheme is empty.
** BUILD FAILED **
The following build commands failed:
	Building workspace Song with scheme Song-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:
  Datable: https://github.com/OperatorFoundation/Datable @ 4.0.1
  Net: https://github.com/OperatorFoundation/Net @ 0.0.11
  swift-ast: https://github.com/OperatorFoundation/swift-ast @ 0.19.12
  Song: /Users/admin/builder/spi-builder-workspace
resolved source packages: Datable, Net, swift-ast, Song
2026-09-21 06:39:54.289 xcodebuild[797:4736] [MT] IDERunDestination: Supported platforms for the buildables in the current scheme is empty.
{
  "dependencies" : [
    {
      "identity" : "swift-ast",
      "requirement" : {
        "range" : [
          {
            "lower_bound" : "0.19.12",
            "upper_bound" : "1.0.0"
          }
        ]
      },
      "type" : "sourceControl",
      "url" : "https://github.com/OperatorFoundation/swift-ast"
    },
    {
      "identity" : "datable",
      "requirement" : {
        "range" : [
          {
            "lower_bound" : "4.0.1",
            "upper_bound" : "5.0.0"
          }
        ]
      },
      "type" : "sourceControl",
      "url" : "https://github.com/OperatorFoundation/Datable"
    },
    {
      "identity" : "net",
      "requirement" : {
        "range" : [
          {
            "lower_bound" : "0.0.11",
            "upper_bound" : "1.0.0"
          }
        ]
      },
      "type" : "sourceControl",
      "url" : "https://github.com/OperatorFoundation/Net"
    }
  ],
  "manifest_display_name" : "Song",
  "name" : "Song",
  "path" : "/Users/admin/builder/spi-builder-workspace",
  "platforms" : [
    {
      "name" : "macos",
      "version" : "14.0"
    },
    {
      "name" : "ios",
      "version" : "15.0"
    }
  ],
  "products" : [
    {
      "name" : "Song",
      "targets" : [
        "Song"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    },
    {
      "name" : "Composition",
      "targets" : [
        "Composition"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    },
    {
      "name" : "Chorus",
      "targets" : [
        "Chorus"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    },
    {
      "name" : "Symphony",
      "targets" : [
        "Symphony"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    },
    {
      "name" : "Package",
      "targets" : [
        "Package"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    },
    {
      "name" : "Expressible",
      "targets" : [
        "Expressible"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    },
    {
      "name" : "SongExpressible",
      "targets" : [
        "SongExpressible"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    },
    {
      "name" : "compose",
      "targets" : [
        "compose"
      ],
      "type" : {
        "executable" : null
      }
    },
    {
      "name" : "choir",
      "targets" : [
        "choir"
      ],
      "type" : {
        "executable" : null
      }
    }
  ],
  "swift_languages_versions" : [
    "5"
  ],
  "targets" : [
    {
      "c99name" : "compose",
      "module_type" : "SwiftTarget",
      "name" : "compose",
      "path" : "Sources/compose",
      "product_dependencies" : [
        "SwiftAST"
      ],
      "product_memberships" : [
        "compose"
      ],
      "sources" : [
        "main.swift"
      ],
      "target_dependencies" : [
        "Composition"
      ],
      "type" : "executable"
    },
    {
      "c99name" : "choir",
      "module_type" : "SwiftTarget",
      "name" : "choir",
      "path" : "Sources/choir",
      "product_dependencies" : [
        "Datable",
        "SwiftAST"
      ],
      "product_memberships" : [
        "choir"
      ],
      "sources" : [
        "main.swift"
      ],
      "target_dependencies" : [
        "Chorus",
        "Package"
      ],
      "type" : "executable"
    },
    {
      "c99name" : "SymphonyTests",
      "module_type" : "SwiftTarget",
      "name" : "SymphonyTests",
      "path" : "Tests/SymphonyTests",
      "product_dependencies" : [
        "Datable"
      ],
      "sources" : [
        "SymphonyTests.swift"
      ],
      "target_dependencies" : [
        "Song",
        "Symphony"
      ],
      "type" : "test"
    },
    {
      "c99name" : "Symphony",
      "module_type" : "SwiftTarget",
      "name" : "Symphony",
      "path" : "Sources/Symphony",
      "product_memberships" : [
        "Symphony"
      ],
      "sources" : [
        "Dictionary.swift",
        "ReadOnlySubkeySequence.swift",
        "Sequence.swift",
        "SubkeySequence.swift",
        "Symphony.swift",
        "Value.swift",
        "ValueDictionary.swift",
        "ValueSequence.swift"
      ],
      "target_dependencies" : [
        "Song"
      ],
      "type" : "library"
    },
    {
      "c99name" : "SongTests",
      "module_type" : "SwiftTarget",
      "name" : "SongTests",
      "path" : "Tests/SongTests",
      "product_dependencies" : [
        "Datable"
      ],
      "sources" : [
        "SongTests.swift"
      ],
      "target_dependencies" : [
        "Song",
        "Composition"
      ],
      "type" : "test"
    },
    {
      "c99name" : "SongExpressible",
      "module_type" : "SwiftTarget",
      "name" : "SongExpressible",
      "path" : "Sources/SongExpressible",
      "product_memberships" : [
        "SongExpressible"
      ],
      "sources" : [
        "SongExpressible.swift"
      ],
      "target_dependencies" : [
        "Song",
        "Expressible"
      ],
      "type" : "library"
    },
    {
      "c99name" : "Song",
      "module_type" : "SwiftTarget",
      "name" : "Song",
      "path" : "Sources/Song",
      "product_dependencies" : [
        "SwiftAST",
        "Datable"
      ],
      "product_memberships" : [
        "Song",
        "Symphony",
        "SongExpressible"
      ],
      "sources" : [
        "Decoding/SongDecoder.swift",
        "Decoding/SongKeyedDecodingContainer.swift",
        "Decoding/SongSingleValueDecodingContainer.swift",
        "Decoding/SongUnkeyedDecodingContainer.swift",
        "Encoding/SongEncoder.swift",
        "Encoding/SongKeyedEncodingContainer.swift",
        "Encoding/SongSingleValueEncodingContainer.swift",
        "Encoding/SongUnkeyedEncodingContainer.swift"
      ],
      "target_dependencies" : [
        "Expressible"
      ],
      "type" : "library"
    },
    {
      "c99name" : "Package",
      "module_type" : "SwiftTarget",
      "name" : "Package",
      "path" : "Sources/Package",
      "product_memberships" : [
        "Package",
        "choir"
      ],
      "sources" : [
        "Package.swift"
      ],
      "type" : "library"
    },
    {
      "c99name" : "ExpressibleTests",
      "module_type" : "SwiftTarget",
      "name" : "ExpressibleTests",
      "path" : "Tests/ExpressibleTests",
      "product_dependencies" : [
        "Net"
      ],
      "sources" : [
        "ExpressibleTests.swift"
      ],
      "target_dependencies" : [
        "Song",
        "Expressible",
        "SongExpressible"
      ],
      "type" : "test"
    },
    {
      "c99name" : "Expressible",
      "module_type" : "SwiftTarget",
      "name" : "Expressible",
      "path" : "Sources/Expressible",
      "product_dependencies" : [
        "Net",
        "SwiftAST"
      ],
      "product_memberships" : [
        "Song",
        "Symphony",
        "Expressible",
        "SongExpressible"
      ],
      "sources" : [
        "Expressible.swift",
        "IPv4Address+Expressible.swift",
        "NWInterface_InterfaceType+Expressible.swift"
      ],
      "type" : "library"
    },
    {
      "c99name" : "Composition",
      "module_type" : "SwiftTarget",
      "name" : "Composition",
      "path" : "Sources/Composition",
      "product_dependencies" : [
        "Datable",
        "Net"
      ],
      "product_memberships" : [
        "Composition",
        "compose"
      ],
      "sources" : [
        "Composition.swift"
      ],
      "type" : "library"
    },
    {
      "c99name" : "Chorus",
      "module_type" : "SwiftTarget",
      "name" : "Chorus",
      "path" : "Sources/Chorus",
      "product_memberships" : [
        "Chorus",
        "choir"
      ],
      "sources" : [
        "Chorus.swift"
      ],
      "type" : "library"
    }
  ],
  "tools_version" : "5.9"
}
{
  "workspace" : {
    "name" : "Song",
    "schemes" : [
      "choir",
      "Chorus",
      "compose",
      "Composition",
      "Expressible",
      "Package",
      "Song",
      "Song-Package",
      "SongExpressible",
      "Symphony"
    ]
  }
}
2026-09-21 06:39:55.679 xcodebuild[805:4801] [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 Song-Package -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 Song-Package -destination generic/platform=iOS
Resolve Package Graph
Resolved source packages:
  Song: /Users/admin/builder/spi-builder-workspace
  swift-ast: https://github.com/OperatorFoundation/swift-ast @ 0.19.12
  Datable: https://github.com/OperatorFoundation/Datable @ 4.0.1
  Net: https://github.com/OperatorFoundation/Net @ 0.0.11
ComputePackagePrebuildTargetDependencyGraph
Prepare packages
CreateBuildRequest
SendProjectDescription
CreateBuildOperation
ComputeTargetDependencyGraph
note: Building targets in dependency order
note: Target dependency graph (28 targets)
    Target 'choir-product' in project 'Song'
        ➜ Explicit dependency on target 'Chorus' in project 'Song'
        ➜ Explicit dependency on target 'Package' in project 'Song'
        ➜ Explicit dependency on target 'Datable-product' in project 'Datable'
        ➜ Explicit dependency on target 'SwiftAST-product' in project 'swift-ast'
    Target 'compose-product' in project 'Song'
        ➜ Explicit dependency on target 'Composition' in project 'Song'
        ➜ Explicit dependency on target 'Datable-product' in project 'Datable'
        ➜ Explicit dependency on target 'Net-product' in project 'Net'
        ➜ Explicit dependency on target 'SwiftAST-product' in project 'swift-ast'
    Target 'SongExpressible-product' in project 'Song'
        ➜ Explicit dependency on target 'SongExpressible' in project 'Song'
        ➜ Explicit dependency on target 'Expressible' in project 'Song'
        ➜ Explicit dependency on target 'Song' in project 'Song'
        ➜ Explicit dependency on target 'Net-product' in project 'Net'
        ➜ Explicit dependency on target 'SwiftAST-product' in project 'swift-ast'
        ➜ Explicit dependency on target 'Datable-product' in project 'Datable'
    Target 'SongExpressible' in project 'Song'
        ➜ Explicit dependency on target 'Expressible' in project 'Song'
        ➜ Explicit dependency on target 'Song' in project 'Song'
        ➜ Explicit dependency on target 'Net-product' in project 'Net'
        ➜ Explicit dependency on target 'SwiftAST-product' in project 'swift-ast'
        ➜ Explicit dependency on target 'Datable-product' in project 'Datable'
    Target 'Expressible-product' in project 'Song'
        ➜ Explicit dependency on target 'Expressible' in project 'Song'
        ➜ Explicit dependency on target 'Net-product' in project 'Net'
        ➜ Explicit dependency on target 'SwiftAST-product' in project 'swift-ast'
    Target 'Package-product' in project 'Song'
        ➜ Explicit dependency on target 'Package' in project 'Song'
    Target 'Package' in project 'Song' (no dependencies)
    Target 'Symphony-product' in project 'Song'
        ➜ Explicit dependency on target 'Symphony' in project 'Song'
        ➜ Explicit dependency on target 'Expressible' in project 'Song'
        ➜ Explicit dependency on target 'Song' in project 'Song'
        ➜ Explicit dependency on target 'Net-product' in project 'Net'
        ➜ Explicit dependency on target 'SwiftAST-product' in project 'swift-ast'
        ➜ Explicit dependency on target 'Datable-product' in project 'Datable'
    Target 'Symphony' in project 'Song'
        ➜ Explicit dependency on target 'Expressible' in project 'Song'
        ➜ Explicit dependency on target 'Song' in project 'Song'
        ➜ Explicit dependency on target 'Net-product' in project 'Net'
        ➜ Explicit dependency on target 'SwiftAST-product' in project 'swift-ast'
        ➜ Explicit dependency on target 'Datable-product' in project 'Datable'
    Target 'Chorus-product' in project 'Song'
        ➜ Explicit dependency on target 'Chorus' in project 'Song'
    Target 'Chorus' in project 'Song' (no dependencies)
    Target 'Composition-product' in project 'Song'
        ➜ Explicit dependency on target 'Composition' in project 'Song'
        ➜ Explicit dependency on target 'Datable-product' in project 'Datable'
        ➜ Explicit dependency on target 'Net-product' in project 'Net'
    Target 'Composition' in project 'Song'
        ➜ Explicit dependency on target 'Datable-product' in project 'Datable'
        ➜ Explicit dependency on target 'Net-product' in project 'Net'
    Target 'Song-product' in project 'Song'
        ➜ Explicit dependency on target 'Song' in project 'Song'
        ➜ Explicit dependency on target 'Expressible' in project 'Song'
        ➜ Explicit dependency on target 'Net-product' in project 'Net'
        ➜ Explicit dependency on target 'SwiftAST-product' in project 'swift-ast'
        ➜ Explicit dependency on target 'Datable-product' in project 'Datable'
    Target 'Song' in project 'Song'
        ➜ Explicit dependency on target 'Expressible' in project 'Song'
        ➜ Explicit dependency on target 'Net-product' in project 'Net'
        ➜ Explicit dependency on target 'SwiftAST-product' in project 'swift-ast'
        ➜ Explicit dependency on target 'Datable-product' in project 'Datable'
    Target 'Expressible' in project 'Song'
        ➜ Explicit dependency on target 'Net-product' in project 'Net'
        ➜ Explicit dependency on target 'SwiftAST-product' in project 'swift-ast'
    Target 'SwiftAST-product' in project 'swift-ast'
        ➜ Explicit dependency on target 'Bocho' in project 'swift-ast'
        ➜ Explicit dependency on target 'Source' in project 'swift-ast'
        ➜ Explicit dependency on target 'Diagnostic' in project 'swift-ast'
        ➜ Explicit dependency on target 'AST' in project 'swift-ast'
        ➜ Explicit dependency on target 'Lexer' in project 'swift-ast'
        ➜ Explicit dependency on target 'Parser' in project 'swift-ast'
        ➜ Explicit dependency on target 'Sema' in project 'swift-ast'
    Target 'Sema' in project 'swift-ast'
        ➜ Explicit dependency on target 'Bocho' in project 'swift-ast'
        ➜ Explicit dependency on target 'Source' in project 'swift-ast'
        ➜ Explicit dependency on target 'Diagnostic' in project 'swift-ast'
        ➜ Explicit dependency on target 'AST' in project 'swift-ast'
    Target 'Parser' in project 'swift-ast'
        ➜ Explicit dependency on target 'Bocho' in project 'swift-ast'
        ➜ Explicit dependency on target 'Source' in project 'swift-ast'
        ➜ Explicit dependency on target 'Diagnostic' in project 'swift-ast'
        ➜ Explicit dependency on target 'AST' in project 'swift-ast'
        ➜ Explicit dependency on target 'Lexer' in project 'swift-ast'
    Target 'Lexer' in project 'swift-ast'
        ➜ Explicit dependency on target 'Bocho' in project 'swift-ast'
        ➜ Explicit dependency on target 'Source' in project 'swift-ast'
        ➜ Explicit dependency on target 'Diagnostic' in project 'swift-ast'
    Target 'AST' in project 'swift-ast'
        ➜ Explicit dependency on target 'Bocho' in project 'swift-ast'
        ➜ Explicit dependency on target 'Source' in project 'swift-ast'
        ➜ Explicit dependency on target 'Diagnostic' in project 'swift-ast'
    Target 'Diagnostic' in project 'swift-ast'
        ➜ Explicit dependency on target 'Bocho' in project 'swift-ast'
        ➜ Explicit dependency on target 'Source' in project 'swift-ast'
    Target 'Source' in project 'swift-ast'
        ➜ Explicit dependency on target 'Bocho' in project 'swift-ast'
    Target 'Bocho' in project 'swift-ast' (no dependencies)
    Target 'Net-product' in project 'Net'
        ➜ Explicit dependency on target 'Net' in project 'Net'
        ➜ Explicit dependency on target 'Datable-product' in project 'Datable'
    Target 'Net' in project 'Net'
        ➜ Explicit dependency on target 'Datable-product' in project 'Datable'
    Target 'Datable-product' in project 'Datable'
        ➜ Explicit dependency on target 'Datable' in project 'Datable'
    Target 'Datable' in project 'Datable' (no dependencies)
GatherProvisioningInputs
CreateBuildDescription
error: The package product 'Net-product' requires minimum platform version 16.0 for the iOS platform, but this target supports 15.0 (in target 'Expressible' from project 'Song')
error: The package product 'Net-product' requires minimum platform version 16.0 for the iOS platform, but this target supports 15.0 (in target 'Symphony' from project 'Song')
error: The package product 'Net-product' requires minimum platform version 16.0 for the iOS platform, but this target supports 15.0 (in target 'Composition' from project 'Song')
error: The package product 'Net-product' requires minimum platform version 16.0 for the iOS platform, but this target supports 15.0 (in target 'SongExpressible' from project 'Song')
error: The package product 'Net-product' requires minimum platform version 16.0 for the iOS platform, but this target supports 15.0 (in target 'Song' from project 'Song')
error: The package product 'Net-product' requires minimum platform version 16.0 for the iOS platform, but this target supports 15.0 (in target 'compose-product' from project 'Song')
2026-09-21 06:39:56.807 xcodebuild[806:4827] [MT] IDERunDestination: Supported platforms for the buildables in the current scheme is empty.
** BUILD FAILED **
The following build commands failed:
	Building workspace Song with scheme Song-Package
(1 failure)
BUILD FAILURE 6.4 iOS