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PiteurMC
Up and Coming
October 24, 2023

Unity SDK demo scene crash - V57 - Unity 2022.3.10

Hi! 

On a clean Unity install I simply import the last Oculus Integration SDK.
When I try to launch an interaction demo scene (DistanceGrabExamples for example) Unity crash.

It seems it have to do with hands.
If I desactivate hands in the hierarchy the scene doesn't crash and play normally.

Here is the crash log :

https://www.voxelguy.fr/Editor.log

I did a lot of gamedev with older versions of the SDK and everything was working fine, even hand tracking.
But this version crash Unity if I don't disable hands.

I would love to use the new version. Can you please help me ?

Thanks! 

      This topic has been closed for replies.

      7 replies

      8bit
      Up and Coming
      October 24, 2023

      Looks like your Oculus integration is messed up.

      Unable to start Oculus XR Plugin.
Possible causes include a headset not being attached, or the Oculus runtime is not installed or up to date.
If you've recently installed or updated the Oculus runtime, you may need to reboot or close Unity and the Unity Hub and try again.

      Which late leads to:

      UnityEngine.XR.Management.XRGeneralSettings:AttemptInitializeXRSDKOnLoad () (at ./Library/PackageCache/com.unity.xr.management@4.4.0/Runtime/XRGeneralSettings.cs:148)

(Filename: ./Library/PackageCache/com.unity.xr.oculus@4.1.1/Runtime/OculusLoader.cs Line: 182)

Found IOVRSkeletonDataProvider reference in LeftOVRHand due to unassigned field.

      More null references

      NullReferenceException: Object reference not set to an instance of an object
  at Oculus.Interaction.HandActiveState.get_Active () [0x00000] in C:\Users\Piteur\Desktop\GAMEDEV\PROJETS UNITY\VR2024\Assets\Oculus\Interaction\Runtime\Scripts\Interaction\Core\HandActiveState.cs:33 
  at Oculus.Interaction.ActiveStateTracker.Update () [0x00000] in C:\Users\Piteur\Desktop\GAMEDEV\PROJETS UNITY\VR2024\Assets\Oculus\Interaction\Runtime\Scripts\Interaction\Core\ActiveStateTracker.cs:82

      Then the crash

      =================================================================
	Managed Stacktrace:
=================================================================
	  at <unknown> <0xffffffff>
	  at Oculus.Interaction.Input.Filter.HandFilter:isdk_DataModifier_Create <0x00094>
	  at Oculus.Interaction.Input.Filter.HandFilter:Awake <0x000da>
	  at System.Object:runtime_invoke_void__this__ <0x00087>
=================================================================

      I'd suggest ensuring the normal oculus integration is working first with a clean scene somewhere. Then coming back to your complex scene to ensure the XR plugin starts correctly.

        PiteurMCAuthor
        Up and Coming
        October 24, 2023

        Thank you very much for your quick answer 8bit ! 

        I think than my Oculus integration is working fine.
        I tested on a clean scene and the oculus integration is working.

        Here is a new crashlog without the "Unable to start Oculus XR Plugin" alert : 
        https://www.voxelguy.fr/Editor3.log

        The crash realy seem to be caused by the "OVRHands" of the OVRCameraRig on all the demos scenes.
        If I disable "OVRHands" in the hierarchy everything work well in the headset.

        But if I try to launch the demos scenes without disabling the "OVRHands" Unity crash with the error log i provided.

        Thank you again for trying to help me and better understand the crash logs !

        kurtisaurus
        New Participant
        October 24, 2023

        I couldn't repro it with v57 on 2022.3.11 with a basic 3d project after installing the integration package and enabling the XR plugin.  Do you have a project link you could share to see if I can repro it ?

          mwvr2023
          New Participant
          November 25, 2023

          Are there any new hints on this? I am having the exact same issue.. following the tutorial and it works fine until I have to add the ovrhands prefab. Then, it crashes when trying to start it in Unity play mode.

          Kind regards!

          mwvr2023
          New Participant
          November 25, 2023

          By the way, I tried an example scene and Unity crashes as well, probably for the same reason. Any advice will be highly appreciated.

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