Build Information
Failed to build LittleBlueTooth with Swift 6.3 for visionOS using Xcode 26.4.
Build Command
Build command unavailableBuild Log
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RunAll
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Builder version: 4.70.0
Interrupt handler set up.
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Checkout
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Clone URL: https://github.com/DrAma999/LittleBlueTooth.git
Reference: 1.1.1
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/DrAma999/LittleBlueTooth
* tag 1.1.1 -> FETCH_HEAD
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 1.1.1
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Build
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Selected platform: visionOS
Swift version: 6.3
Building package at path: $PWD
https://github.com/DrAma999/LittleBlueTooth.git
Command line invocation:
/Applications/Xcode-26.4.0.app/Contents/Developer/usr/bin/xcodebuild -IDEClonedSourcePackagesDirPathOverride=/Users/admin/builder/spi-builder-workspace/.dependencies -resolvePackageDependencies
Resolve Package Graph
Fetching from https://github.com/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-26.4.0.app xcrun xcodebuild -IDEClonedSourcePackagesDirPathOverride=$PWD/.dependencies -skipMacroValidation -skipPackagePluginValidation -derivedDataPath $PWD/.derivedData build -scheme LittleBlueTooth -destination generic/platform=xrOS
Command line invocation:
/Applications/Xcode-26.4.0.app/Contents/Developer/usr/bin/xcodebuild -IDEClonedSourcePackagesDirPathOverride=/Users/admin/builder/spi-builder-workspace/.dependencies -skipMacroValidation -skipPackagePluginValidation -derivedDataPath /Users/admin/builder/spi-builder-workspace/.derivedData build -scheme LittleBlueTooth -destination generic/platform=xrOS
Resolve Package Graph
Resolved source packages:
CoreBluetoothMock: https://github.com/NordicSemiconductor/IOS-CoreBluetooth-Mock.git @ 0.18.0
2026-04-19 09:50:26.320 xcodebuild[661:3986] Writing error result bundle to /var/folders/xq/y_g06wb113726d38xsyx71_h0000gn/T/ResultBundle_2026-19-04_09-50-0026.xcresult
xcodebuild: error: Unable to find a destination matching the provided destination specifier:
{ generic:1, platform:xrOS }
Available destinations for the "LittleBlueTooth" scheme:
{ platform:macOS, arch:arm64, id:33bb8b4de72574e4f66857cb4bc29d353d05c0c6, name:My Mac }
{ platform:macOS, arch:x86_64, id:33bb8b4de72574e4f66857cb4bc29d353d05c0c6, name:My Mac }
{ platform:macOS, arch:arm64, variant:Mac Catalyst, id:33bb8b4de72574e4f66857cb4bc29d353d05c0c6, name:My Mac }
{ platform:macOS, arch:x86_64, variant:Mac Catalyst, id:33bb8b4de72574e4f66857cb4bc29d353d05c0c6, 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 }
{ platform:tvOS Simulator, arch:arm64, id:EB41DD69-50EA-4A70-A0F3-B1F466EA63FD, OS:26.4, name:Apple TV }
{ platform:tvOS Simulator, arch:arm64, id:18F5F773-9DDF-4D28-BE08-2EE01B9FE04D, OS:26.4, name:Apple TV 4K (3rd generation) }
{ platform:tvOS Simulator, arch:arm64, id:8753D4DB-0EAD-4642-AE61-CF841A16BD50, OS:26.4, name:Apple TV 4K (3rd generation) (at 1080p) }
{ platform:visionOS Simulator, arch:arm64, variant:Designed for [iPad,iPhone], id:0A65DF41-4C5A-42D8-80FB-C7AD911E0B72, OS:26.4, name:Apple Vision Pro }
{ platform:watchOS Simulator, arch:arm64, id:21136BB6-0BE4-4F7C-B65A-9D5D377866B7, OS:26.4, name:Apple Watch SE 3 (40mm) }
{ platform:watchOS Simulator, arch:arm64, id:5F5B3141-7CE9-4C68-BDEF-F50E137CB489, OS:26.4, name:Apple Watch SE 3 (44mm) }
{ platform:watchOS Simulator, arch:arm64, id:D6424336-ADAE-465D-8F02-54AB28C2A306, OS:26.4, name:Apple Watch Series 11 (42mm) }
{ platform:watchOS Simulator, arch:arm64, id:EA70B146-8CB0-4192-8C25-04DF59477105, OS:26.4, name:Apple Watch Series 11 (46mm) }
{ platform:watchOS Simulator, arch:arm64, id:C12BDEDA-46B1-43B5-A69B-7029487C2761, OS:26.4, name:Apple Watch Ultra 3 (49mm) }
{ platform:iOS Simulator, arch:arm64, id:ED6D44FB-E2CB-4753-A0FD-FD31596FEC80, OS:26.4, name:iPad (A16) }
{ platform:iOS Simulator, arch:arm64, id:BCEC8334-6B95-4648-94D6-7CF60E7EFD82, OS:26.4, name:iPad Air 11-inch (M4) }
{ platform:iOS Simulator, arch:arm64, id:45BB79BC-7646-4F19-8D06-DCBD411E98C0, OS:26.4, name:iPad Air 13-inch (M4) }
{ platform:iOS Simulator, arch:arm64, id:1C3FCF57-F496-44A8-91C7-42D1FBB47B6C, OS:26.4, name:iPad Pro 11-inch (M5) }
{ platform:iOS Simulator, arch:arm64, id:78ECA907-6BCE-4638-957D-C2669C42F4B7, OS:26.4, name:iPad Pro 13-inch (M5) }
{ platform:iOS Simulator, arch:arm64, id:4E377BD7-D244-4C67-AA71-C9334B19DD83, OS:26.4, name:iPad mini (A17 Pro) }
{ platform:iOS Simulator, arch:arm64, id:5E07715F-630C-4684-A995-1B2EE7BD6598, OS:26.4, name:iPhone 17 }
{ platform:iOS Simulator, arch:arm64, id:C413B30A-952C-4663-B1C5-64938D82C4AB, OS:26.4, name:iPhone 17 Pro }
{ platform:iOS Simulator, arch:arm64, id:407D5276-A344-478A-B9C8-EB27CE780CB6, OS:26.4, name:iPhone 17 Pro Max }
{ platform:iOS Simulator, arch:arm64, id:720F5E9E-7490-4565-8AC1-7A6A63551BBC, OS:26.4, name:iPhone 17e }
{ platform:iOS Simulator, arch:arm64, id:51B1D6CF-85BF-4B9E-ACCF-FD3A9AD197FF, OS:26.4, name:iPhone Air }
INFRASTRUCTURE ERROR (status: destinationUnavailable