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WebGL NullReferenceException with no stacktrace in Performance Reports

Discussion in 'WebGL' started by Dliix66, Apr 12, 2018.

  1. Dliix66

    Dliix66

    Joined:
    Sep 5, 2017
    Posts:
    16
    Hello,

    I have a project running on WebGL/iOS/Android (http://nitrodrift.io) and I have noticed a NullReferenceException that happened more than a million times with no stacktrace! Some other exceptions happened but I have a stacktrace for all of these. However, I have nothing about this huge bug.

    Any ideas why ? How can I manage to get a stacktrace?

    Please note that this bug only happens in WebGL, nobody has had this bug on the mobile platforms and I can't reproduce it, even in the editor.

    Screenshot of my performance report page attached below.

    Exception Message: NullReferenceException: A null value was found where an object instance was required.
    Attached stacktrace:
    ```Managed Stack Trace:

    Native StackTrace:```

    Thank you for your help!

    Capture d’écran 2018-04-12 à 11.59.32.png
     
    Dliix66, Apr 12, 2018
    #1

  2. Dliix66

    Dliix66

    Joined:
    Sep 5, 2017
    Posts:
    16
    Hello again,

    Nobody has an idea of why is this happening ? Unity's support did not answer either...
     
    Dliix66, Apr 16, 2018
    #2

  3. Marco-Trivellato

    Marco-Trivellato

    Unity Technologies

    Joined:
    Jul 9, 2013
    Posts:
    1,654
    There's a known issue with callstacks sometimes being null/empty, which seems to affect multiple IL2CPP platforms. It might be the same problem.

    Has this only occurred once?
     
    Marco-Trivellato, Apr 16, 2018
    #3

  4. Dliix66

    Dliix66

    Joined:
    Sep 5, 2017
    Posts:
    16
    Hello @Marco-Trivellato,

    Unfortunately no, This keeps happening and now I have a NullReferenceException that happened almost 5 million times since in the past 14 days. Is there any fix I can try ? (new build options or whatever comes to you)

    Thank you for looking into this !

    Capture d’écran 2018-04-16 à 18.35.56.png
     
    Dliix66, Apr 16, 2018
    #4