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Failed to build LittleBlueTooth with Swift 6.2 for visionOS using Xcode 26.3.

Build Command

Build command unavailable

Build Log

========================================
RunAll
========================================
Builder version: 4.69.2
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/DrAma999/LittleBlueTooth.git
Reference: master
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/DrAma999/LittleBlueTooth
 * branch            master     -> FETCH_HEAD
 * [new branch]      master     -> origin/master
HEAD is now at b8be234 Fix force unwrap crash in discover methods (#45)
Cloned https://github.com/DrAma999/LittleBlueTooth.git
Revision (git rev-parse @):
b8be234506eee294a69a9cbaa60be1c5ecdb99e5
SUCCESS checkout https://github.com/DrAma999/LittleBlueTooth.git at master
========================================
Build
========================================
Selected platform:         visionOS
Swift version:             6.2
Building package at path:  $PWD
https://github.com/DrAma999/LittleBlueTooth.git
Command line invocation:
    /Applications/Xcode-26.0.0.app/Contents/Developer/usr/bin/xcodebuild -IDEClonedSourcePackagesDirPathOverride=/Users/admin/builder/spi-builder-workspace/.dependencies -resolvePackageDependencies
Resolve Package Graph
Fetching from https://github.com/NordicSemiconductor/IOS-CoreBluetooth-Mock.git
Creating working copy of package ‘IOS-CoreBluetooth-Mock’
Checking out 0.18.0 of package ‘IOS-CoreBluetooth-Mock’
Resolved source packages:
  CoreBluetoothMock: https://github.com/NordicSemiconductor/IOS-CoreBluetooth-Mock.git @ 0.18.0
resolved source packages: CoreBluetoothMock
{
  "dependencies" : [
    {
      "identity" : "ios-corebluetooth-mock",
      "requirement" : {
        "range" : [
          {
            "lower_bound" : "0.18.0",
            "upper_bound" : "0.19.0"
          }
        ]
      },
      "type" : "sourceControl",
      "url" : "https://github.com/NordicSemiconductor/IOS-CoreBluetooth-Mock.git"
    }
  ],
  "manifest_display_name" : "LittleBlueTooth",
  "name" : "LittleBlueTooth",
  "path" : "/Users/admin/builder/spi-builder-workspace",
  "platforms" : [
    {
      "name" : "macos",
      "version" : "10.15"
    },
    {
      "name" : "ios",
      "version" : "13.0"
    },
    {
      "name" : "watchos",
      "version" : "6.0"
    },
    {
      "name" : "tvos",
      "version" : "13.0"
    }
  ],
  "products" : [
    {
      "name" : "LittleBlueTooth",
      "targets" : [
        "LittleBlueTooth"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    },
    {
      "name" : "LittleBlueToothForTest",
      "targets" : [
        "LittleBlueToothForTest"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "LittleBlueToothTests",
      "module_type" : "SwiftTarget",
      "name" : "LittleBlueToothTests",
      "path" : "Tests/LittleBlueToothTests",
      "product_dependencies" : [
        "CoreBluetoothMock"
      ],
      "sources" : [
        "ConnectionTest.swift",
        "CustomOperator.swift",
        "Extraction.swift",
        "ListenTest.swift",
        "LittleBlueToothTests.swift",
        "Mocks/MockPeripherals.swift",
        "ScanDiscoveryTest.swift",
        "StateRestoration.swift",
        "UtilityTest.swift",
        "WriteReadTest.swift",
        "WriteWithoutResponse.swift"
      ],
      "target_dependencies" : [
        "LittleBlueToothForTest"
      ],
      "type" : "test"
    },
    {
      "c99name" : "LittleBlueToothForTest",
      "module_type" : "SwiftTarget",
      "name" : "LittleBlueToothForTest",
      "path" : "Sources/LittleBlueToothForTest",
      "product_dependencies" : [
        "CoreBluetoothMock"
      ],
      "product_memberships" : [
        "LittleBlueToothForTest"
      ],
      "sources" : [
        "Classes/CustomOperator/JustLittleBlueTooth.swift",
        "Classes/CustomOperator/Listen.swift",
        "Classes/CustomOperator/Log.swift",
        "Classes/CustomOperator/ReadAndWrite.swift",
        "Classes/CustomOperator/ScanAndConnection.swift",
        "Classes/Error/LittleBlueToothError.swift",
        "Classes/Extension/Helper.swift",
        "Classes/Model/AdvertisingData.swift",
        "Classes/Model/CentralRestorer.swift",
        "Classes/Model/LittleBlueToothCharacteristic.swift",
        "Classes/Model/LittleBluetoothConfiguration.swift",
        "Classes/Model/Loggable.swift",
        "Classes/Model/Peripheral.swift",
        "Classes/Model/PeripheralDiscovery.swift",
        "Classes/Proxies/CBCentralManagerDelegateProxy.swift",
        "Classes/Proxies/CBPeripheralProxy.swift",
        "Classes/Utilities/ShareAndReplayOperator/ReplaySubject.swift",
        "Classes/Utilities/ShareAndReplayOperator/ReplaySubjectSubscription.swift",
        "Classes/Utilities/ShareAndReplayOperator/ShareReplay.swift",
        "Classes/Utilities/Utilities.swift",
        "CoreBluetoothTypeAliases.swift",
        "LittleBlueTooth.swift"
      ],
      "type" : "library"
    },
    {
      "c99name" : "LittleBlueTooth",
      "module_type" : "SwiftTarget",
      "name" : "LittleBlueTooth",
      "path" : "Sources/LittleBlueTooth",
      "product_memberships" : [
        "LittleBlueTooth"
      ],
      "sources" : [
        "Classes/CustomOperator/JustLittleBlueTooth.swift",
        "Classes/CustomOperator/Listen.swift",
        "Classes/CustomOperator/Log.swift",
        "Classes/CustomOperator/ReadAndWrite.swift",
        "Classes/CustomOperator/ScanAndConnection.swift",
        "Classes/Error/LittleBlueToothError.swift",
        "Classes/Extension/Helper.swift",
        "Classes/Model/AdvertisingData.swift",
        "Classes/Model/CentralRestorer.swift",
        "Classes/Model/LittleBlueToothCharacteristic.swift",
        "Classes/Model/LittleBluetoothConfiguration.swift",
        "Classes/Model/Loggable.swift",
        "Classes/Model/Peripheral.swift",
        "Classes/Model/PeripheralDiscovery.swift",
        "Classes/Proxies/CBCentralManagerDelegateProxy.swift",
        "Classes/Proxies/CBPeripheralProxy.swift",
        "Classes/Utilities/ShareAndReplayOperator/ReplaySubject.swift",
        "Classes/Utilities/ShareAndReplayOperator/ReplaySubjectSubscription.swift",
        "Classes/Utilities/ShareAndReplayOperator/ShareReplay.swift",
        "Classes/Utilities/Utilities.swift",
        "CoreBluetoothTypeAliases.swift",
        "LittleBlueTooth.swift"
      ],
      "type" : "library"
    }
  ],
  "tools_version" : "6.0"
}
warning: 'spi-builder-workspace': /Users/admin/builder/spi-builder-workspace/Package.swift:26:10: warning: 'package(name:url:_:)' is deprecated: use package(url:_:) instead [#DeprecatedDeclaration]
24 |     dependencies: [
25 |         // Dependencies declare other packages that this package depends on.
26 |         .package(name: "CoreBluetoothMock",
   |          `- warning: 'package(name:url:_:)' is deprecated: use package(url:_:) instead [#DeprecatedDeclaration]
27 |                  url: "https://github.com/NordicSemiconductor/IOS-CoreBluetooth-Mock.git",
28 |                  .upToNextMinor(from: "0.18.0")),
[#DeprecatedDeclaration]: <https://docs.swift.org/compiler/documentation/diagnostics/deprecated-declaration>
{
  "project" : {
    "configurations" : [
      "Debug",
      "Debug-test",
      "Release"
    ],
    "name" : "LittleBlueTooth",
    "schemes" : [
      "LittleBlueTooth"
    ],
    "targets" : [
      "LittleBlueTooth",
      "LittleBlueToothForTest",
      "LittleBlueToothTests"
    ]
  }
}
Running build ...
env DEVELOPER_DIR=/Applications/Xcode-26.0.0.app xcrun xcodebuild -IDEClonedSourcePackagesDirPathOverride=$PWD/.dependencies -skipMacroValidation -skipPackagePluginValidation -derivedDataPath $PWD/.derivedData build -scheme LittleBlueTooth -destination generic/platform=xrOS
Command line invocation:
    /Applications/Xcode-26.0.0.app/Contents/Developer/usr/bin/xcodebuild -IDEClonedSourcePackagesDirPathOverride=/Users/admin/builder/spi-builder-workspace/.dependencies -skipMacroValidation -skipPackagePluginValidation -derivedDataPath /Users/admin/builder/spi-builder-workspace/.derivedData build -scheme LittleBlueTooth -destination generic/platform=xrOS
Resolve Package Graph
Resolved source packages:
  CoreBluetoothMock: https://github.com/NordicSemiconductor/IOS-CoreBluetooth-Mock.git @ 0.18.0
2026-03-30 16:17:35.455 xcodebuild[660:4003] Writing error result bundle to /var/folders/3b/z59l1v4n1zl7qfzxc5pj6ljw0000gn/T/ResultBundle_2026-30-03_16-17-0035.xcresult
xcodebuild: error: Unable to find a destination matching the provided destination specifier:
		{ generic:1, platform:xrOS }
	Available destinations for the "LittleBlueTooth" scheme:
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		{ platform:macOS, arch:arm64, variant:Mac Catalyst, id:6fc899a361e75c9f5f21b82fd178741ddabffe2f, name:My Mac }
		{ platform:macOS, arch:x86_64, variant:Mac Catalyst, id:6fc899a361e75c9f5f21b82fd178741ddabffe2f, name:My Mac }
		{ platform:iOS, id:dvtdevice-DVTiPhonePlaceholder-iphoneos:placeholder, name:Any iOS Device }
		{ platform:iOS Simulator, id:dvtdevice-DVTiOSDeviceSimulatorPlaceholder-iphonesimulator:placeholder, name:Any iOS Simulator Device }
		{ platform:macOS, name:Any Mac }
		{ platform:macOS, variant:Mac Catalyst, name:Any Mac }
		{ platform:tvOS, id:dvtdevice-DVTiOSDevicePlaceholder-appletvos:placeholder, name:Any tvOS Device }
		{ platform:tvOS Simulator, id:dvtdevice-DVTiOSDeviceSimulatorPlaceholder-appletvsimulator:placeholder, name:Any tvOS Simulator Device }
		{ platform:watchOS, id:dvtdevice-DVTiOSDevicePlaceholder-watchos:placeholder, name:Any watchOS Device }
		{ platform:watchOS Simulator, id:dvtdevice-DVTiOSDeviceSimulatorPlaceholder-watchsimulator:placeholder, name:Any watchOS Simulator Device }
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		{ platform:visionOS Simulator, arch:arm64, variant:Designed for [iPad,iPhone], id:CA7B9323-9820-4CCC-A3EB-4D0234907555, OS:26.2, name:Apple Vision Pro }
		{ platform:visionOS Simulator, arch:arm64, variant:Designed for [iPad,iPhone], id:B5117B15-B016-4C76-BAE4-63A76D90E91C, OS:26.0, name:Apple Vision Pro 4K }
		{ platform:watchOS Simulator, arch:arm64, id:118B3189-CB51-44F7-8612-FCCEF18E8D0F, OS:26.0, name:Apple Watch SE (40mm) (2nd generation) }
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INFRASTRUCTURE ERROR (status: destinationUnavailable