Unable to install an app extension when running it for debugging

App & System Services Notifications
mungbeans
mungbeans OP
Created Dec ’24
Replies 1
Boosts 0
Views 470
Participants 2

I've got an app with several app extensions (call extension, action extension, notification service extension, message filtering extension, notification content extension).

If I need to interactively debug these then I can select the scheme and run the extension within Xcode for all of them except for the notification content extension, with that I get an error dialog summary saying:

Failed to install the app on the device / The provided item to be installed is not of a type that CoreDevice recognizes.

Which when expanded has the blumpf posted below.

Why can I not run the notification content extension, when I can run any other type of app extension?

Failed to install the app on the device.
Domain: com.apple.dt.CoreDeviceError
Code: 3002
Failure Reason: The provided item to be installed is not of a type that CoreDevice recognizes.
User Info: {
    DVTErrorCreationDateKey = "2024-12-27 16:39:54 +0000";
    IDERunOperationFailingWorker = IDEInstallCoreDeviceWorker;
    NSURL = "file:///Users/Me/Library/Developer/Xcode/DerivedData/XFinity-celiagrvtevxcagztrguseawvjkl/Build/Products/Debug.Ceq.QA-iphoneos/NotificationContentExtension.appex";
}
--
 
Event Metadata: com.apple.dt.IDERunOperationWorkerFinished : {
    "device_identifier" = "00008101-00115D623460001E";
    "device_isCoreDevice" = 1;
    "device_model" = "iPhone13,3";
    "device_osBuild" = "18.2 (22C152)";
    "device_platform" = "com.apple.platform.iphoneos";
    "device_thinningType" = "iPhone13,3";
    "dvt_coredevice_version" = "397.28";
    "dvt_coresimulator_version" = "993.7";
    "dvt_mobiledevice_version" = "1759.40.2.100.1";
    "launchSession_schemeCommand" = Run;
    "launchSession_state" = 1;
    "launchSession_targetArch" = arm64;
    "operation_duration_ms" = 7;
    "operation_errorCode" = 3002;
    "operation_errorDomain" = "com.apple.dt.CoreDeviceError";
    "operation_errorWorker" = IDEInstallCoreDeviceWorker;
    "operation_name" = IDERunOperationWorkerGroup;
    "param_debugger_attachToExtensions" = 0;
    "param_debugger_attachToXPC" = 1;
    "param_debugger_type" = 1;
    "param_destination_isProxy" = 0;
    "param_destination_platform" = "com.apple.platform.iphoneos";
    "param_diag_113575882_enable" = 0;
    "param_diag_MainThreadChecker_stopOnIssue" = 0;
    "param_diag_MallocStackLogging_enableDuringAttach" = 0;
    "param_diag_MallocStackLogging_enableForXPC" = 1;
    "param_diag_allowLocationSimulation" = 0;
    "param_diag_checker_tpc_enable" = 1;
    "param_diag_gpu_frameCapture_enable" = 0;
    "param_diag_gpu_shaderValidation_enable" = 0;
    "param_diag_gpu_validation_enable" = 0;
    "param_diag_guardMalloc_enable" = 0;
    "param_diag_memoryGraphOnResourceException" = 0;
    "param_diag_mtc_enable" = 0;
    "param_diag_queueDebugging_enable" = 1;
    "param_diag_runtimeProfile_generate" = 0;
    "param_diag_sanitizer_asan_enable" = 0;
    "param_diag_sanitizer_tsan_enable" = 0;
    "param_diag_sanitizer_tsan_stopOnIssue" = 0;
    "param_diag_sanitizer_ubsan_enable" = 0;
    "param_diag_sanitizer_ubsan_stopOnIssue" = 0;
    "param_diag_showNonLocalizedStrings" = 0;
    "param_diag_viewDebugging_enabled" = 1;
    "param_diag_viewDebugging_insertDylibOnLaunch" = 1;
    "param_install_style" = 2;
    "param_launcher_UID" = 2;
    "param_launcher_allowDeviceSensorReplayData" = 0;
    "param_launcher_kind" = 0;
    "param_launcher_style" = 0;
    "param_launcher_substyle" = 2;
    "param_runnable_appExtensionHostRunMode" = 0;
    "param_runnable_productType" = "com.apple.product-type.app-extension";
    "param_structuredConsoleMode" = 1;
    "param_testing_launchedForTesting" = 0;
    "param_testing_suppressSimulatorApp" = 0;
    "param_testing_usingCLI" = 0;
    "sdk_canonicalName" = "iphoneos18.2";
    "sdk_osVersion" = "18.2";
    "sdk_variant" = iphoneos;
}
--
 
 
System Information
 
macOS Version 14.7 (Build 23H124)
Xcode 16.2 (23507) (Build 16C5032a)
Timestamp: 2024-12-27T08:39:54-08:00
Replies  1
Boosts  0
Views  470
Participants  2
Apple Staff, Engineer
Engineer OP
Apple
Jan ’25

I'm not sure I understand what you are doing to try to run the extension and getting this error, but how to debug a notification extension is to start an app scheme, and then tell Xcode to attach to the process by PID or Name - and use the name of your extension.

After that when you send a notification to the app on the device, the NSE will be launched and Xcode will attach to it, after which you can interactively debug the extension.

Argun Tekant /  DTS Engineer / Core Technologies

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