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SDK Assistant crashes upon opening


I have downloaded the latest SDK Assistant (3.0 SP1) but upon opening the app, it crashes immediately.

The error report lists:

Crashed Thread:        18  Dispatch queue: Exception Type:        EXC_BAD_INSTRUCTION (SIGILL)
Exception Codes:       0x0000000000000001, 0x0000000000000000
Exception Note:        EXC_CORPSE_NOTIFY
Termination Signal:    Illegal instruction: 4
Termination Reason:    Namespace SIGNAL, Code 0x4
Terminating Process:   exc handler [51176]

Stacktrace for thread 18:

Thread 18 Crashed:: Dispatch queue:
0 specialized PersistedAssistantProjectLoader2_1.loadProject(from:xcodeProjectPath:) + 7140
1 specialized PersistedAssistantProjectLoader2_1.loadProject(from:) + 823
2 protocol witness for PersistedAssistantProjectLoader.loadProject(from:) in conformance PersistedAssistantProjectLoader2_1 + 9
3 AssistantProjectManager.loadFromContextJSON(at:) + 399
4 closure #1 in AssistantProjectManager.loadProject(from:_:) + 45
5 partial apply for closure #1 in AssistantProjectManager.loadProject(from:_:) + 25
6 partial apply for closure #1 in AssistantProjectManager.loadProject(from:_:) + 16
7 closure #1 in AssistantProjectManager.loadProject(from:_:)partial apply + 9
8 thunk for @escaping @callee_guaranteed () -> () + 32
9   libdispatch.dylib             0x00007fff712c7d53 _dispatch_call_block_and_release + 12
10  libdispatch.dylib             0x00007fff712c8dcf _dispatch_client_callout + 8
11  libdispatch.dylib             0x00007fff712cb240 _dispatch_queue_override_invoke + 767
12  libdispatch.dylib             0x00007fff712d6d26 _dispatch_root_queue_drain + 325
13  libdispatch.dylib             0x00007fff712d74bd _dispatch_worker_thread2 + 90
14  libsystem_pthread.dylib       0x00007fff715096dd _pthread_wqthread + 619
15  libsystem_pthread.dylib       0x00007fff71509405 start_wqthread + 13

In the Console app, I see the following error logged error:

Unable to load Info.plist exceptions (eGPUOverrides)

Anyone have an idea what could go wrong here? I have tried with 3.0 PL05, but that is having the same issue, so I suspect it has something to do with my local development machine. I do have Xcode 10.1 running.

Thanks in advance!

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1 Answer

  • Best Answer
    Posted on Feb 25, 2019 at 11:21 AM

    Hi Robin,

    During the startup, the Assistant tries to load your old generated project. It seems that something went wrong here. We recently did some fix here, which could fix your issue in the next patch. But to be sure: Could you please export your configurations and send us?

    To export your userDefaults, please use the following command from Terminal:
    defaults export <path to a plist file where you want to save to>

    If you want to start the Assistant like a fresh install just clean your UserDefaults from terminal:

    defaults delete

    Thanks and Best regards,


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    • Hi David,

      Many thanks for your swift — pun intended — reply! :-)

      Removing the Assistant's defaults indeed did the trick, the SDK Assistant now opens successfully!

      It appears the really old ones were wrecking havoc; I tried importing an old one and it failed with the following errors:

      Loading project from path 'file:///Users/robin/Development/Sandbox/TEMP/MyDeliveries/MyDeliveries.xcodeproj' failed. - Error Log: The operation couldn’t be completed. (Assistant.PersistedAssistantProjectLoaderError error 1.) (File: AssistantProjectManager.swift, Function: loadProject(from:_:), Line: 66)
      Failed to import project. - Error Log: The operation couldn’t be completed. (Assistant.PersistedAssistantProjectLoaderError error 1.) (File: NavigationController.swift, Function: importProject(from:), Line: 177)

      Again, many thanks for your help, much appreciated!

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