Swift Package Index

Build Information

Failed to build SGSwiftyBind, reference 1.0.2 (fb686f), with Swift 6.4 for visionOS using Xcode 27.0 on 19 Sep 2026 11:14:43 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 SGSwiftyBind -destination generic/platform=xrOS

Build Log

========================================
RunAll
========================================
Builder version: 5.1.0
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/the-freshlord/SGSwiftyBind.git
Reference: 1.0.2
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/the-freshlord/SGSwiftyBind
 * tag               1.0.2      -> FETCH_HEAD
HEAD is now at fb686fa Release 1.0.2
Cloned https://github.com/the-freshlord/SGSwiftyBind.git
Revision (git rev-parse @):
fb686fae873a0883127bebb90c1f3d89ee2f94ef
SUCCESS checkout https://github.com/the-freshlord/SGSwiftyBind.git at 1.0.2
========================================
Build
========================================
Selected platform:         visionOS
Swift version:             6.4
Building package at path:  $PWD
https://github.com/the-freshlord/SGSwiftyBind.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
Resolve Package Graph
Resolved source packages:
  SGSwiftyBind: /Users/admin/builder/spi-builder-workspace
resolved source packages: SGSwiftyBind
2026-09-19 07:13:57.750 xcodebuild[522:2973] [MT] IDERunDestination: Supported platforms for the buildables in the current scheme is empty.
{
  "dependencies" : [
  ],
  "manifest_display_name" : "SGSwiftyBind",
  "name" : "SGSwiftyBind",
  "path" : "/Users/admin/builder/spi-builder-workspace",
  "platforms" : [
  ],
  "products" : [
    {
      "name" : "SGSwiftyBind",
      "targets" : [
        "SGSwiftyBind"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "SGSwiftyBindTests",
      "module_type" : "SwiftTarget",
      "name" : "SGSwiftyBindTests",
      "path" : "Tests/SGSwiftyBindTests",
      "sources" : [
        "SGSwiftyBindTests.swift"
      ],
      "target_dependencies" : [
        "SGSwiftyBind"
      ],
      "type" : "test"
    },
    {
      "c99name" : "SGSwiftyBind",
      "module_type" : "SwiftTarget",
      "name" : "SGSwiftyBind",
      "path" : "Sources/SGSwiftyBind",
      "product_memberships" : [
        "SGSwiftyBind"
      ],
      "sources" : [
        "SGSwiftyBind.swift"
      ],
      "type" : "library"
    }
  ],
  "tools_version" : "4.0"
}
{
  "workspace" : {
    "name" : "SGSwiftyBind",
    "schemes" : [
      "SGSwiftyBind"
    ]
  }
}
2026-09-19 07:14:33.611 xcodebuild[622:3871] [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 SGSwiftyBind -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 SGSwiftyBind -destination generic/platform=xrOS
Resolve Package Graph
Resolved source packages:
  SGSwiftyBind: /Users/admin/builder/spi-builder-workspace
ComputePackagePrebuildTargetDependencyGraph
Prepare packages
CreateBuildRequest
SendProjectDescription
CreateBuildOperation
ComputeTargetDependencyGraph
note: Building targets in dependency order
note: Target dependency graph (2 targets)
    Target 'SGSwiftyBind-product' in project 'SGSwiftyBind'
        ➜ Explicit dependency on target 'SGSwiftyBind' in project 'SGSwiftyBind'
    Target 'SGSwiftyBind' in project 'SGSwiftyBind' (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/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/ld -version_details
Build description signature: 182229088fc1f1deb21b605d7156ffec
Build description path: /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/XCBuildData/182229088fc1f1deb21b605d7156ffec.xcbuilddata
CreateBuildDirectory /Users/admin/builder/spi-builder-workspace/.derivedData/SDKExplicitPrecompiledModules
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode
    builtin-create-build-directory /Users/admin/builder/spi-builder-workspace/.derivedData/SDKExplicitPrecompiledModules
CreateBuildDirectory /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode
    builtin-create-build-directory /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex
CreateBuildDirectory /Users/admin/builder/spi-builder-workspace/.derivedData/CompilationCache.noindex
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode
    builtin-create-build-directory /Users/admin/builder/spi-builder-workspace/.derivedData/CompilationCache.noindex
CreateBuildDirectory /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode
    builtin-create-build-directory /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products
CreateBuildDirectory /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode
    builtin-create-build-directory /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex
ClangStatCache /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang-stat-cache /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Platforms/XROS.platform/Developer/SDKs/XROS27.0.sdk /Users/admin/builder/spi-builder-workspace/.derivedData/SDKStatCaches.noindex/xros27.0-24M361-e829b21a6f8c9b70876ba0858053c044735bd543db762f57723cac368afd1ce4.sdkstatcache
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode
    /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang-stat-cache /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Platforms/XROS.platform/Developer/SDKs/XROS27.0.sdk -o /Users/admin/builder/spi-builder-workspace/.derivedData/SDKStatCaches.noindex/xros27.0-24M361-e829b21a6f8c9b70876ba0858053c044735bd543db762f57723cac368afd1ce4.sdkstatcache
CreateBuildDirectory /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/PrecompiledHeaders
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode
    builtin-create-build-directory /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/PrecompiledHeaders
CreateBuildDirectory /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftExplicitPrecompiledModules
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode
    builtin-create-build-directory /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftExplicitPrecompiledModules
CreateBuildDirectory /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/ExplicitPrecompiledModules
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode
    builtin-create-build-directory /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/ExplicitPrecompiledModules
CreateBuildDirectory /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/EagerLinkingTBDs/Debug-xros
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode
    builtin-create-build-directory /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/EagerLinkingTBDs/Debug-xros
CreateBuildDirectory /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug-xros
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode
    builtin-create-build-directory /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug-xros
CreateBuildDirectory /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug-xros/PackageFrameworks
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode
    builtin-create-build-directory /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug-xros/PackageFrameworks
WriteAuxiliaryFile /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SGSwiftyBind.build/Debug-xros/SGSwiftyBind-t.build/SGSwiftyBind.DependencyStaticMetadataFileList (in target 'SGSwiftyBind' from project 'SGSwiftyBind')
    cd /Users/admin/builder/spi-builder-workspace
    write-file /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SGSwiftyBind.build/Debug-xros/SGSwiftyBind-t.build/SGSwiftyBind.DependencyStaticMetadataFileList
WriteAuxiliaryFile /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SGSwiftyBind.build/Debug-xros/SGSwiftyBind-t.build/SGSwiftyBind.DependencyMetadataFileList (in target 'SGSwiftyBind' from project 'SGSwiftyBind')
    cd /Users/admin/builder/spi-builder-workspace
    write-file /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SGSwiftyBind.build/Debug-xros/SGSwiftyBind-t.build/SGSwiftyBind.DependencyMetadataFileList
WriteAuxiliaryFile /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SGSwiftyBind.build/Debug-xros/SGSwiftyBind-t.build/SGSwiftyBind.modulemap (in target 'SGSwiftyBind' from project 'SGSwiftyBind')
    cd /Users/admin/builder/spi-builder-workspace
    write-file /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SGSwiftyBind.build/Debug-xros/SGSwiftyBind-t.build/SGSwiftyBind.modulemap
WriteAuxiliaryFile /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SGSwiftyBind.build/Debug-xros/SGSwiftyBind-t.build/Objects-normal/arm64/SGSwiftyBind.SwiftConstValuesFileList (in target 'SGSwiftyBind' from project 'SGSwiftyBind')
    cd /Users/admin/builder/spi-builder-workspace
    write-file /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SGSwiftyBind.build/Debug-xros/SGSwiftyBind-t.build/Objects-normal/arm64/SGSwiftyBind.SwiftConstValuesFileList
WriteAuxiliaryFile /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SGSwiftyBind.build/Debug-xros/SGSwiftyBind-t.build/Objects-normal/arm64/SGSwiftyBind.SwiftFileList (in target 'SGSwiftyBind' from project 'SGSwiftyBind')
    cd /Users/admin/builder/spi-builder-workspace
    write-file /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SGSwiftyBind.build/Debug-xros/SGSwiftyBind-t.build/Objects-normal/arm64/SGSwiftyBind.SwiftFileList
WriteAuxiliaryFile /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SGSwiftyBind.build/Debug-xros/SGSwiftyBind-t.build/Objects-normal/arm64/SGSwiftyBind_const_extract_protocols.json (in target 'SGSwiftyBind' from project 'SGSwiftyBind')
    cd /Users/admin/builder/spi-builder-workspace
    write-file /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SGSwiftyBind.build/Debug-xros/SGSwiftyBind-t.build/Objects-normal/arm64/SGSwiftyBind_const_extract_protocols.json
WriteAuxiliaryFile /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SGSwiftyBind.build/Debug-xros/SGSwiftyBind-t.build/Objects-normal/arm64/SGSwiftyBind-OutputFileMap.json (in target 'SGSwiftyBind' from project 'SGSwiftyBind')
    cd /Users/admin/builder/spi-builder-workspace
    write-file /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SGSwiftyBind.build/Debug-xros/SGSwiftyBind-t.build/Objects-normal/arm64/SGSwiftyBind-OutputFileMap.json
WriteAuxiliaryFile /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SGSwiftyBind.build/Debug-xros/SGSwiftyBind-t.build/Objects-normal/arm64/SGSwiftyBind.LinkFileList (in target 'SGSwiftyBind' from project 'SGSwiftyBind')
    cd /Users/admin/builder/spi-builder-workspace
    write-file /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SGSwiftyBind.build/Debug-xros/SGSwiftyBind-t.build/Objects-normal/arm64/SGSwiftyBind.LinkFileList
Copy /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/GeneratedModuleMaps-xros/SGSwiftyBind.modulemap /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SGSwiftyBind.build/Debug-xros/SGSwiftyBind-t.build/SGSwiftyBind.modulemap (in target 'SGSwiftyBind' from project 'SGSwiftyBind')
    cd /Users/admin/builder/spi-builder-workspace
    builtin-copy -exclude .DS_Store -exclude CVS -exclude .svn -exclude .git -exclude .hg -resolve-src-symlinks /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SGSwiftyBind.build/Debug-xros/SGSwiftyBind-t.build/SGSwiftyBind.modulemap /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/GeneratedModuleMaps-xros
SwiftDriver SGSwiftyBind normal arm64 com.apple.xcode.tools.swift.compiler (in target 'SGSwiftyBind' from project 'SGSwiftyBind')
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode
    builtin-SwiftDriver -- /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/swiftc -parse-as-library -module-name SGSwiftyBind -Onone @/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SGSwiftyBind.build/Debug-xros/SGSwiftyBind-t.build/Objects-normal/arm64/SGSwiftyBind.SwiftFileList -DSWIFT_PACKAGE -DDEBUG -DSWIFT_MODULE_RESOURCE_BUNDLE_UNAVAILABLE -DXcode -plugin-path /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/lib/swift/host/plugins/testing -enable-experimental-feature DebugDescriptionMacro -sdk /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Platforms/XROS.platform/Developer/SDKs/XROS27.0.sdk -target arm64-apple-xros1.0 -g -module-cache-path /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex -Xfrontend -serialize-debugging-options -profile-coverage-mapping -profile-generate -enable-testing -index-store-path /Users/admin/builder/spi-builder-workspace/.derivedData/Index.noindex/DataStore -Xcc -D_LIBCPP_HARDENING_MODE\=_LIBCPP_HARDENING_MODE_DEBUG -swift-version 4 -I /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug-xros -Isystem /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Platforms/XROS.platform/Developer/usr/lib -F /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug-xros -F /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Platforms/XROS.platform/Developer/Library/Frameworks -F /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Platforms/XROS.platform/Developer/SDKs/XROS27.0.sdk/Developer/Library/Frameworks -c -j10 -enable-batch-mode -incremental -Xcc -ivfsstatcache -Xcc /Users/admin/builder/spi-builder-workspace/.derivedData/SDKStatCaches.noindex/xros27.0-24M361-e829b21a6f8c9b70876ba0858053c044735bd543db762f57723cac368afd1ce4.sdkstatcache -output-file-map /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SGSwiftyBind.build/Debug-xros/SGSwiftyBind-t.build/Objects-normal/arm64/SGSwiftyBind-OutputFileMap.json -save-temps -no-color-diagnostics -emit-dependencies -emit-module -emit-module-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SGSwiftyBind.build/Debug-xros/SGSwiftyBind-t.build/Objects-normal/arm64/SGSwiftyBind.swiftmodule -serialize-diagnostics -validate-clang-modules-once -clang-build-session-file /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex/Session.modulevalidation -Xcc -fmodules-prune-interval\=86400 -Xcc -fmodules-prune-after\=345600 -emit-const-values -const-gather-protocols-list /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SGSwiftyBind.build/Debug-xros/SGSwiftyBind-t.build/Objects-normal/arm64/SGSwiftyBind_const_extract_protocols.json -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug-xros/include -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SGSwiftyBind.build/Debug-xros/SGSwiftyBind-t.build/DerivedSources-normal/arm64 -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SGSwiftyBind.build/Debug-xros/SGSwiftyBind-t.build/DerivedSources/arm64 -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SGSwiftyBind.build/Debug-xros/SGSwiftyBind-t.build/DerivedSources -Xcc -DSWIFT_PACKAGE -Xcc -DDEBUG\=1 -emit-objc-header -emit-objc-header-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SGSwiftyBind.build/Debug-xros/SGSwiftyBind-t.build/Objects-normal/arm64/SGSwiftyBind-Swift.h -working-directory /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode -experimental-emit-module-separately -disable-cmo
SwiftEmitModule normal arm64 Emitting\ module\ for\ SGSwiftyBind (in target 'SGSwiftyBind' from project 'SGSwiftyBind')
SwiftCompile normal arm64 (in target 'SGSwiftyBind' from project 'SGSwiftyBind')
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode

SwiftCompile normal arm64 Compiling\ SGSwiftyBind.swift /Users/admin/builder/spi-builder-workspace/Sources/SGSwiftyBind/SGSwiftyBind.swift (in target 'SGSwiftyBind' from project 'SGSwiftyBind')
SwiftCompile normal arm64 /Users/admin/builder/spi-builder-workspace/Sources/SGSwiftyBind/SGSwiftyBind.swift (in target 'SGSwiftyBind' from project 'SGSwiftyBind')
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode
    builtin-SwiftPerFileCompile SGSwiftyBind.swift
/Users/admin/builder/spi-builder-workspace/Sources/SGSwiftyBind/SGSwiftyBind.swift:161:30: error: cannot convert value of type '()?' to closure result type 'Void'
159 |             },
160 |             bindCallback: { [weak self] (listener, observer) in
161 |                 return self?.bind(listener, for: observer)
    |                              `- error: cannot convert value of type '()?' to closure result type 'Void'
162 |             },
163 |             bindAndFireCallback: { [weak self] (listener, observer) in
/Users/admin/builder/spi-builder-workspace/Sources/SGSwiftyBind/SGSwiftyBind.swift:164:30: error: cannot convert value of type '()?' to closure result type 'Void'
162 |             },
163 |             bindAndFireCallback: { [weak self] (listener, observer) in
164 |                 return self?.bindAndFire(listener, for: observer)
    |                              `- error: cannot convert value of type '()?' to closure result type 'Void'
165 |             },
166 |             unbindCallback: { [weak self] (observer) in
/Users/admin/builder/spi-builder-workspace/Sources/SGSwiftyBind/SGSwiftyBind.swift:167:30: error: cannot convert value of type '()?' to closure result type 'Void'
165 |             },
166 |             unbindCallback: { [weak self] (observer) in
167 |                 return self?.unbind(for: observer)
    |                              `- error: cannot convert value of type '()?' to closure result type 'Void'
168 |             }
169 |         )
Failed frontend command:
/Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/swift-frontend -frontend -c -primary-file /Users/admin/builder/spi-builder-workspace/Sources/SGSwiftyBind/SGSwiftyBind.swift -emit-dependencies-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SGSwiftyBind.build/Debug-xros/SGSwiftyBind-t.build/Objects-normal/arm64/SGSwiftyBind.d -emit-const-values-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SGSwiftyBind.build/Debug-xros/SGSwiftyBind-t.build/Objects-normal/arm64/SGSwiftyBind.swiftconstvalues -emit-reference-dependencies-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SGSwiftyBind.build/Debug-xros/SGSwiftyBind-t.build/Objects-normal/arm64/SGSwiftyBind.swiftdeps -serialize-diagnostics-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SGSwiftyBind.build/Debug-xros/SGSwiftyBind-t.build/Objects-normal/arm64/SGSwiftyBind.dia -target arm64-apple-xros1.0 -Xllvm -aarch64-use-tbi -enable-objc-interop -stack-check -sdk /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Platforms/XROS.platform/Developer/SDKs/XROS27.0.sdk -I /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug-xros -Isystem /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Platforms/XROS.platform/Developer/usr/lib -F /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug-xros -F /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Platforms/XROS.platform/Developer/Library/Frameworks -F /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Platforms/XROS.platform/Developer/SDKs/XROS27.0.sdk/Developer/Library/Frameworks -module-cache-path /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex -no-color-diagnostics -Xcc -fno-color-diagnostics -enable-testing -g -debug-info-format\=dwarf -dwarf-version\=4 -profile-generate -profile-coverage-mapping -swift-version 4 -Onone -D SWIFT_PACKAGE -D DEBUG -D SWIFT_MODULE_RESOURCE_BUNDLE_UNAVAILABLE -D Xcode -serialize-debugging-options -enable-experimental-feature DebugDescriptionMacro -empty-abi-descriptor -plugin-path /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/lib/swift/host/plugins/testing -validate-clang-modules-once -clang-build-session-file /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex/Session.modulevalidation -Xcc -working-directory -Xcc /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode -enable-anonymous-context-mangled-names -file-compilation-dir /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode -Xcc -D_LIBCPP_HARDENING_MODE\=_LIBCPP_HARDENING_MODE_DEBUG -Xcc -ivfsstatcache -Xcc /Users/admin/builder/spi-builder-workspace/.derivedData/SDKStatCaches.noindex/xros27.0-24M361-e829b21a6f8c9b70876ba0858053c044735bd543db762f57723cac368afd1ce4.sdkstatcache -Xcc -fmodules-prune-interval\=86400 -Xcc -fmodules-prune-after\=345600 -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug-xros/include -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SGSwiftyBind.build/Debug-xros/SGSwiftyBind-t.build/DerivedSources-normal/arm64 -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SGSwiftyBind.build/Debug-xros/SGSwiftyBind-t.build/DerivedSources/arm64 -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SGSwiftyBind.build/Debug-xros/SGSwiftyBind-t.build/DerivedSources -Xcc -DSWIFT_PACKAGE -Xcc -DDEBUG\=1 -no-auto-bridging-header-chaining -module-name SGSwiftyBind -const-gather-protocols-file /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SGSwiftyBind.build/Debug-xros/SGSwiftyBind-t.build/Objects-normal/arm64/SGSwiftyBind_const_extract_protocols.json -disable-clang-spi -target-sdk-version 27.0 -target-sdk-name xros27.0 -external-plugin-path /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Platforms/XROS.platform/Developer/usr/lib/swift/host/plugins\#/Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Platforms/XROS.platform/Developer/usr/bin/swift-plugin-server -external-plugin-path /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Platforms/XROS.platform/Developer/usr/local/lib/swift/host/plugins\#/Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Platforms/XROS.platform/Developer/usr/bin/swift-plugin-server -in-process-plugin-server-path /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/lib/swift/host/libSwiftInProcPluginServer.dylib -plugin-path /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/lib/swift/host/plugins -plugin-path /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/local/lib/swift/host/plugins -parse-as-library -o /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SGSwiftyBind.build/Debug-xros/SGSwiftyBind-t.build/Objects-normal/arm64/SGSwiftyBind.o -index-unit-output-path /SGSwiftyBind.build/Debug-xros/SGSwiftyBind-t.build/Objects-normal/arm64/SGSwiftyBind.o -index-store-path /Users/admin/builder/spi-builder-workspace/.derivedData/Index.noindex/DataStore -index-system-modules
SwiftDriverJobDiscovery normal arm64 Emitting module for SGSwiftyBind (in target 'SGSwiftyBind' from project 'SGSwiftyBind')
SwiftDriver\ Compilation\ Requirements SGSwiftyBind normal arm64 com.apple.xcode.tools.swift.compiler (in target 'SGSwiftyBind' from project 'SGSwiftyBind')
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode
    builtin-Swift-Compilation-Requirements -- /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/swiftc -parse-as-library -module-name SGSwiftyBind -Onone @/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SGSwiftyBind.build/Debug-xros/SGSwiftyBind-t.build/Objects-normal/arm64/SGSwiftyBind.SwiftFileList -DSWIFT_PACKAGE -DDEBUG -DSWIFT_MODULE_RESOURCE_BUNDLE_UNAVAILABLE -DXcode -plugin-path /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/lib/swift/host/plugins/testing -enable-experimental-feature DebugDescriptionMacro -sdk /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Platforms/XROS.platform/Developer/SDKs/XROS27.0.sdk -target arm64-apple-xros1.0 -g -module-cache-path /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex -Xfrontend -serialize-debugging-options -profile-coverage-mapping -profile-generate -enable-testing -index-store-path /Users/admin/builder/spi-builder-workspace/.derivedData/Index.noindex/DataStore -Xcc -D_LIBCPP_HARDENING_MODE\=_LIBCPP_HARDENING_MODE_DEBUG -swift-version 4 -I /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug-xros -Isystem /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Platforms/XROS.platform/Developer/usr/lib -F /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug-xros -F /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Platforms/XROS.platform/Developer/Library/Frameworks -F /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Platforms/XROS.platform/Developer/SDKs/XROS27.0.sdk/Developer/Library/Frameworks -c -j10 -enable-batch-mode -incremental -Xcc -ivfsstatcache -Xcc /Users/admin/builder/spi-builder-workspace/.derivedData/SDKStatCaches.noindex/xros27.0-24M361-e829b21a6f8c9b70876ba0858053c044735bd543db762f57723cac368afd1ce4.sdkstatcache -output-file-map /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SGSwiftyBind.build/Debug-xros/SGSwiftyBind-t.build/Objects-normal/arm64/SGSwiftyBind-OutputFileMap.json -save-temps -no-color-diagnostics -emit-dependencies -emit-module -emit-module-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SGSwiftyBind.build/Debug-xros/SGSwiftyBind-t.build/Objects-normal/arm64/SGSwiftyBind.swiftmodule -serialize-diagnostics -validate-clang-modules-once -clang-build-session-file /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex/Session.modulevalidation -Xcc -fmodules-prune-interval\=86400 -Xcc -fmodules-prune-after\=345600 -emit-const-values -const-gather-protocols-list /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SGSwiftyBind.build/Debug-xros/SGSwiftyBind-t.build/Objects-normal/arm64/SGSwiftyBind_const_extract_protocols.json -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug-xros/include -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SGSwiftyBind.build/Debug-xros/SGSwiftyBind-t.build/DerivedSources-normal/arm64 -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SGSwiftyBind.build/Debug-xros/SGSwiftyBind-t.build/DerivedSources/arm64 -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SGSwiftyBind.build/Debug-xros/SGSwiftyBind-t.build/DerivedSources -Xcc -DSWIFT_PACKAGE -Xcc -DDEBUG\=1 -emit-objc-header -emit-objc-header-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SGSwiftyBind.build/Debug-xros/SGSwiftyBind-t.build/Objects-normal/arm64/SGSwiftyBind-Swift.h -working-directory /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode -experimental-emit-module-separately -disable-cmo
SwiftMergeGeneratedHeaders /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/GeneratedModuleMaps-xros/SGSwiftyBind-Swift.h /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SGSwiftyBind.build/Debug-xros/SGSwiftyBind-t.build/Objects-normal/arm64/SGSwiftyBind-Swift.h (in target 'SGSwiftyBind' from project 'SGSwiftyBind')
    cd /Users/admin/builder/spi-builder-workspace
    builtin-swiftHeaderTool -arch arm64 /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SGSwiftyBind.build/Debug-xros/SGSwiftyBind-t.build/Objects-normal/arm64/SGSwiftyBind-Swift.h -o /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/GeneratedModuleMaps-xros/SGSwiftyBind-Swift.h
Copy /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug-xros/SGSwiftyBind.swiftmodule/arm64-apple-xros.swiftdoc /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SGSwiftyBind.build/Debug-xros/SGSwiftyBind-t.build/Objects-normal/arm64/SGSwiftyBind.swiftdoc (in target 'SGSwiftyBind' from project 'SGSwiftyBind')
    cd /Users/admin/builder/spi-builder-workspace
    builtin-copy -exclude .DS_Store -exclude CVS -exclude .svn -exclude .git -exclude .hg -resolve-src-symlinks -rename /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SGSwiftyBind.build/Debug-xros/SGSwiftyBind-t.build/Objects-normal/arm64/SGSwiftyBind.swiftdoc /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug-xros/SGSwiftyBind.swiftmodule/arm64-apple-xros.swiftdoc
Copy /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug-xros/SGSwiftyBind.swiftmodule/arm64-apple-xros.swiftmodule /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SGSwiftyBind.build/Debug-xros/SGSwiftyBind-t.build/Objects-normal/arm64/SGSwiftyBind.swiftmodule (in target 'SGSwiftyBind' from project 'SGSwiftyBind')
    cd /Users/admin/builder/spi-builder-workspace
    builtin-copy -exclude .DS_Store -exclude CVS -exclude .svn -exclude .git -exclude .hg -resolve-src-symlinks -rename /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SGSwiftyBind.build/Debug-xros/SGSwiftyBind-t.build/Objects-normal/arm64/SGSwiftyBind.swiftmodule /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug-xros/SGSwiftyBind.swiftmodule/arm64-apple-xros.swiftmodule
Copy /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug-xros/SGSwiftyBind.swiftmodule/arm64-apple-xros.abi.json /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SGSwiftyBind.build/Debug-xros/SGSwiftyBind-t.build/Objects-normal/arm64/SGSwiftyBind.abi.json (in target 'SGSwiftyBind' from project 'SGSwiftyBind')
    cd /Users/admin/builder/spi-builder-workspace
    builtin-copy -exclude .DS_Store -exclude CVS -exclude .svn -exclude .git -exclude .hg -resolve-src-symlinks -rename /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SGSwiftyBind.build/Debug-xros/SGSwiftyBind-t.build/Objects-normal/arm64/SGSwiftyBind.abi.json /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug-xros/SGSwiftyBind.swiftmodule/arm64-apple-xros.abi.json
Copy /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug-xros/SGSwiftyBind.swiftmodule/Project/arm64-apple-xros.swiftsourceinfo /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SGSwiftyBind.build/Debug-xros/SGSwiftyBind-t.build/Objects-normal/arm64/SGSwiftyBind.swiftsourceinfo (in target 'SGSwiftyBind' from project 'SGSwiftyBind')
    cd /Users/admin/builder/spi-builder-workspace
    builtin-copy -exclude .DS_Store -exclude CVS -exclude .svn -exclude .git -exclude .hg -resolve-src-symlinks -rename /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SGSwiftyBind.build/Debug-xros/SGSwiftyBind-t.build/Objects-normal/arm64/SGSwiftyBind.swiftsourceinfo /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug-xros/SGSwiftyBind.swiftmodule/Project/arm64-apple-xros.swiftsourceinfo
PruneExplicitPrecompiledModules /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftExplicitPrecompiledModules
PruneExplicitPrecompiledModules /Users/admin/builder/spi-builder-workspace/.derivedData/SDKExplicitPrecompiledModules
PruneExplicitPrecompiledModules /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/ExplicitPrecompiledModules
2026-09-19 07:14:35.066 xcodebuild[623:3920] [MT] IDERunDestination: Supported platforms for the buildables in the current scheme is empty.
** BUILD FAILED **
The following build commands failed:
	SwiftCompile normal arm64 /Users/admin/builder/spi-builder-workspace/Sources/SGSwiftyBind/SGSwiftyBind.swift (in target 'SGSwiftyBind' from project 'SGSwiftyBind')
	SwiftCompile normal arm64 Compiling\ SGSwiftyBind.swift /Users/admin/builder/spi-builder-workspace/Sources/SGSwiftyBind/SGSwiftyBind.swift (in target 'SGSwiftyBind' from project 'SGSwiftyBind')
	Building workspace SGSwiftyBind with scheme SGSwiftyBind
(3 failures)
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:
  SGSwiftyBind: /Users/admin/builder/spi-builder-workspace
resolved source packages: SGSwiftyBind
2026-09-19 07:14:40.772 xcodebuild[649:4097] [MT] IDERunDestination: Supported platforms for the buildables in the current scheme is empty.
{
  "dependencies" : [
  ],
  "manifest_display_name" : "SGSwiftyBind",
  "name" : "SGSwiftyBind",
  "path" : "/Users/admin/builder/spi-builder-workspace",
  "platforms" : [
  ],
  "products" : [
    {
      "name" : "SGSwiftyBind",
      "targets" : [
        "SGSwiftyBind"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "SGSwiftyBindTests",
      "module_type" : "SwiftTarget",
      "name" : "SGSwiftyBindTests",
      "path" : "Tests/SGSwiftyBindTests",
      "sources" : [
        "SGSwiftyBindTests.swift"
      ],
      "target_dependencies" : [
        "SGSwiftyBind"
      ],
      "type" : "test"
    },
    {
      "c99name" : "SGSwiftyBind",
      "module_type" : "SwiftTarget",
      "name" : "SGSwiftyBind",
      "path" : "Sources/SGSwiftyBind",
      "product_memberships" : [
        "SGSwiftyBind"
      ],
      "sources" : [
        "SGSwiftyBind.swift"
      ],
      "type" : "library"
    }
  ],
  "tools_version" : "4.0"
}
{
  "workspace" : {
    "name" : "SGSwiftyBind",
    "schemes" : [
      "SGSwiftyBind"
    ]
  }
}
2026-09-19 07:14:41.991 xcodebuild[677:4297] [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 SGSwiftyBind -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 SGSwiftyBind -destination generic/platform=xrOS
Resolve Package Graph
Resolved source packages:
  SGSwiftyBind: /Users/admin/builder/spi-builder-workspace
ComputePackagePrebuildTargetDependencyGraph
Prepare packages
CreateBuildRequest
SendProjectDescription
CreateBuildOperation
ComputeTargetDependencyGraph
note: Building targets in dependency order
note: Target dependency graph (2 targets)
    Target 'SGSwiftyBind-product' in project 'SGSwiftyBind'
        ➜ Explicit dependency on target 'SGSwiftyBind' in project 'SGSwiftyBind'
    Target 'SGSwiftyBind' in project 'SGSwiftyBind' (no dependencies)
GatherProvisioningInputs
CreateBuildDescription
ClangStatCache /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang-stat-cache /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Platforms/XROS.platform/Developer/SDKs/XROS27.0.sdk /Users/admin/builder/spi-builder-workspace/.derivedData/SDKStatCaches.noindex/xros27.0-24M361-e829b21a6f8c9b70876ba0858053c044735bd543db762f57723cac368afd1ce4.sdkstatcache
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode
    /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang-stat-cache /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Platforms/XROS.platform/Developer/SDKs/XROS27.0.sdk -o /Users/admin/builder/spi-builder-workspace/.derivedData/SDKStatCaches.noindex/xros27.0-24M361-e829b21a6f8c9b70876ba0858053c044735bd543db762f57723cac368afd1ce4.sdkstatcache
SwiftDriver SGSwiftyBind normal arm64 com.apple.xcode.tools.swift.compiler (in target 'SGSwiftyBind' from project 'SGSwiftyBind')
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode
    builtin-SwiftDriver -- /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/swiftc -parse-as-library -module-name SGSwiftyBind -Onone @/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SGSwiftyBind.build/Debug-xros/SGSwiftyBind-t.build/Objects-normal/arm64/SGSwiftyBind.SwiftFileList -DSWIFT_PACKAGE -DDEBUG -DSWIFT_MODULE_RESOURCE_BUNDLE_UNAVAILABLE -DXcode -plugin-path /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/lib/swift/host/plugins/testing -enable-experimental-feature DebugDescriptionMacro -sdk /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Platforms/XROS.platform/Developer/SDKs/XROS27.0.sdk -target arm64-apple-xros1.0 -g -module-cache-path /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex -Xfrontend -serialize-debugging-options -profile-coverage-mapping -profile-generate -enable-testing -index-store-path /Users/admin/builder/spi-builder-workspace/.derivedData/Index.noindex/DataStore -Xcc -D_LIBCPP_HARDENING_MODE\=_LIBCPP_HARDENING_MODE_DEBUG -swift-version 4 -I /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug-xros -Isystem /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Platforms/XROS.platform/Developer/usr/lib -F /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug-xros -F /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Platforms/XROS.platform/Developer/Library/Frameworks -F /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Platforms/XROS.platform/Developer/SDKs/XROS27.0.sdk/Developer/Library/Frameworks -c -j10 -enable-batch-mode -incremental -Xcc -ivfsstatcache -Xcc /Users/admin/builder/spi-builder-workspace/.derivedData/SDKStatCaches.noindex/xros27.0-24M361-e829b21a6f8c9b70876ba0858053c044735bd543db762f57723cac368afd1ce4.sdkstatcache -output-file-map /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SGSwiftyBind.build/Debug-xros/SGSwiftyBind-t.build/Objects-normal/arm64/SGSwiftyBind-OutputFileMap.json -save-temps -no-color-diagnostics -emit-dependencies -emit-module -emit-module-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SGSwiftyBind.build/Debug-xros/SGSwiftyBind-t.build/Objects-normal/arm64/SGSwiftyBind.swiftmodule -serialize-diagnostics -validate-clang-modules-once -clang-build-session-file /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex/Session.modulevalidation -Xcc -fmodules-prune-interval\=86400 -Xcc -fmodules-prune-after\=345600 -emit-const-values -const-gather-protocols-list /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SGSwiftyBind.build/Debug-xros/SGSwiftyBind-t.build/Objects-normal/arm64/SGSwiftyBind_const_extract_protocols.json -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug-xros/include -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SGSwiftyBind.build/Debug-xros/SGSwiftyBind-t.build/DerivedSources-normal/arm64 -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SGSwiftyBind.build/Debug-xros/SGSwiftyBind-t.build/DerivedSources/arm64 -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SGSwiftyBind.build/Debug-xros/SGSwiftyBind-t.build/DerivedSources -Xcc -DSWIFT_PACKAGE -Xcc -DDEBUG\=1 -emit-objc-header -emit-objc-header-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SGSwiftyBind.build/Debug-xros/SGSwiftyBind-t.build/Objects-normal/arm64/SGSwiftyBind-Swift.h -working-directory /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode -experimental-emit-module-separately -disable-cmo
SwiftEmitModule normal arm64 Emitting\ module\ for\ SGSwiftyBind (in target 'SGSwiftyBind' from project 'SGSwiftyBind')
SwiftCompile normal arm64 (in target 'SGSwiftyBind' from project 'SGSwiftyBind')
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode

SwiftCompile normal arm64 Compiling\ SGSwiftyBind.swift /Users/admin/builder/spi-builder-workspace/Sources/SGSwiftyBind/SGSwiftyBind.swift (in target 'SGSwiftyBind' from project 'SGSwiftyBind')
SwiftCompile normal arm64 /Users/admin/builder/spi-builder-workspace/Sources/SGSwiftyBind/SGSwiftyBind.swift (in target 'SGSwiftyBind' from project 'SGSwiftyBind')
    cd /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode
    builtin-SwiftPerFileCompile SGSwiftyBind.swift
/Users/admin/builder/spi-builder-workspace/Sources/SGSwiftyBind/SGSwiftyBind.swift:161:30: error: cannot convert value of type '()?' to closure result type 'Void'
159 |             },
160 |             bindCallback: { [weak self] (listener, observer) in
161 |                 return self?.bind(listener, for: observer)
    |                              `- error: cannot convert value of type '()?' to closure result type 'Void'
162 |             },
163 |             bindAndFireCallback: { [weak self] (listener, observer) in
/Users/admin/builder/spi-builder-workspace/Sources/SGSwiftyBind/SGSwiftyBind.swift:164:30: error: cannot convert value of type '()?' to closure result type 'Void'
162 |             },
163 |             bindAndFireCallback: { [weak self] (listener, observer) in
164 |                 return self?.bindAndFire(listener, for: observer)
    |                              `- error: cannot convert value of type '()?' to closure result type 'Void'
165 |             },
166 |             unbindCallback: { [weak self] (observer) in
/Users/admin/builder/spi-builder-workspace/Sources/SGSwiftyBind/SGSwiftyBind.swift:167:30: error: cannot convert value of type '()?' to closure result type 'Void'
165 |             },
166 |             unbindCallback: { [weak self] (observer) in
167 |                 return self?.unbind(for: observer)
    |                              `- error: cannot convert value of type '()?' to closure result type 'Void'
168 |             }
169 |         )
Failed frontend command:
/Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/swift-frontend -frontend -c -primary-file /Users/admin/builder/spi-builder-workspace/Sources/SGSwiftyBind/SGSwiftyBind.swift -emit-dependencies-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SGSwiftyBind.build/Debug-xros/SGSwiftyBind-t.build/Objects-normal/arm64/SGSwiftyBind.d -emit-const-values-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SGSwiftyBind.build/Debug-xros/SGSwiftyBind-t.build/Objects-normal/arm64/SGSwiftyBind.swiftconstvalues -emit-reference-dependencies-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SGSwiftyBind.build/Debug-xros/SGSwiftyBind-t.build/Objects-normal/arm64/SGSwiftyBind.swiftdeps -serialize-diagnostics-path /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SGSwiftyBind.build/Debug-xros/SGSwiftyBind-t.build/Objects-normal/arm64/SGSwiftyBind.dia -target arm64-apple-xros1.0 -Xllvm -aarch64-use-tbi -enable-objc-interop -stack-check -sdk /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Platforms/XROS.platform/Developer/SDKs/XROS27.0.sdk -I /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug-xros -Isystem /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Platforms/XROS.platform/Developer/usr/lib -F /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug-xros -F /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Platforms/XROS.platform/Developer/Library/Frameworks -F /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Platforms/XROS.platform/Developer/SDKs/XROS27.0.sdk/Developer/Library/Frameworks -module-cache-path /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex -no-color-diagnostics -Xcc -fno-color-diagnostics -enable-testing -g -debug-info-format\=dwarf -dwarf-version\=4 -profile-generate -profile-coverage-mapping -swift-version 4 -Onone -D SWIFT_PACKAGE -D DEBUG -D SWIFT_MODULE_RESOURCE_BUNDLE_UNAVAILABLE -D Xcode -serialize-debugging-options -enable-experimental-feature DebugDescriptionMacro -empty-abi-descriptor -plugin-path /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/lib/swift/host/plugins/testing -validate-clang-modules-once -clang-build-session-file /Users/admin/builder/spi-builder-workspace/.derivedData/ModuleCache.noindex/Session.modulevalidation -Xcc -working-directory -Xcc /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode -enable-anonymous-context-mangled-names -file-compilation-dir /Users/admin/builder/spi-builder-workspace/.swiftpm/xcode -Xcc -D_LIBCPP_HARDENING_MODE\=_LIBCPP_HARDENING_MODE_DEBUG -Xcc -ivfsstatcache -Xcc /Users/admin/builder/spi-builder-workspace/.derivedData/SDKStatCaches.noindex/xros27.0-24M361-e829b21a6f8c9b70876ba0858053c044735bd543db762f57723cac368afd1ce4.sdkstatcache -Xcc -fmodules-prune-interval\=86400 -Xcc -fmodules-prune-after\=345600 -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Products/Debug-xros/include -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SGSwiftyBind.build/Debug-xros/SGSwiftyBind-t.build/DerivedSources-normal/arm64 -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SGSwiftyBind.build/Debug-xros/SGSwiftyBind-t.build/DerivedSources/arm64 -Xcc -I/Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SGSwiftyBind.build/Debug-xros/SGSwiftyBind-t.build/DerivedSources -Xcc -DSWIFT_PACKAGE -Xcc -DDEBUG\=1 -no-auto-bridging-header-chaining -module-name SGSwiftyBind -const-gather-protocols-file /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SGSwiftyBind.build/Debug-xros/SGSwiftyBind-t.build/Objects-normal/arm64/SGSwiftyBind_const_extract_protocols.json -disable-clang-spi -target-sdk-version 27.0 -target-sdk-name xros27.0 -external-plugin-path /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Platforms/XROS.platform/Developer/usr/lib/swift/host/plugins\#/Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Platforms/XROS.platform/Developer/usr/bin/swift-plugin-server -external-plugin-path /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Platforms/XROS.platform/Developer/usr/local/lib/swift/host/plugins\#/Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Platforms/XROS.platform/Developer/usr/bin/swift-plugin-server -in-process-plugin-server-path /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/lib/swift/host/libSwiftInProcPluginServer.dylib -plugin-path /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/lib/swift/host/plugins -plugin-path /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/local/lib/swift/host/plugins -parse-as-library -o /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SGSwiftyBind.build/Debug-xros/SGSwiftyBind-t.build/Objects-normal/arm64/SGSwiftyBind.o -index-unit-output-path /SGSwiftyBind.build/Debug-xros/SGSwiftyBind-t.build/Objects-normal/arm64/SGSwiftyBind.o -index-store-path /Users/admin/builder/spi-builder-workspace/.derivedData/Index.noindex/DataStore -index-system-modules
PruneExplicitPrecompiledModules /Users/admin/builder/spi-builder-workspace/.derivedData/SDKExplicitPrecompiledModules
PruneExplicitPrecompiledModules /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/SwiftExplicitPrecompiledModules
PruneExplicitPrecompiledModules /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/ExplicitPrecompiledModules
2026-09-19 07:14:42.863 xcodebuild[679:4369] [MT] IDERunDestination: Supported platforms for the buildables in the current scheme is empty.
** BUILD FAILED **
The following build commands failed:
	SwiftCompile normal arm64 /Users/admin/builder/spi-builder-workspace/Sources/SGSwiftyBind/SGSwiftyBind.swift (in target 'SGSwiftyBind' from project 'SGSwiftyBind')
	SwiftCompile normal arm64 Compiling\ SGSwiftyBind.swift /Users/admin/builder/spi-builder-workspace/Sources/SGSwiftyBind/SGSwiftyBind.swift (in target 'SGSwiftyBind' from project 'SGSwiftyBind')
	Building workspace SGSwiftyBind with scheme SGSwiftyBind
(3 failures)
BUILD FAILURE 6.4 visionOS