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Issue with Vuforia using Unity 2017.2

July 27, 2018 - 4:08am #1



We have a legacy project running Unity 2017.2 that has just developed an issue out of nowhere. All of a sudden Vuforia is giving the following:

Exception in callback: System.Reflection.TargetInvocationException: Exception has been thrown by the target of an invocation. ---> System.MissingMethodException: Method not found: 'UnityEngine.Application.add_quitting'.

We are running Vuforia 7.1.35 and have managed to do a release on this version without issue before.


If we upgrade to Unity 2018.1 this goes away, but we cannot release this product with the engine upgraded currently. Can anyone shed some light on to what is wrong and how we might fix as this is blocking a release for us.





Issue with Vuforia using Unity 2017.2

July 27, 2018 - 8:46am #2

From what I understand, I think you should only be using the official version of Vuforia (and only its appropiate patches) that comes with a specific version of Unity.  What I remember is that Vuforia 6.5 comes with 2012.2.  I'm not sure any other version is officially supported, but I've never read what Vuforia's official policy on mixing and matching different versions.

But as to your issue, things shouldn't just break if you havent upgraded unity or vuforia.  Have you started with a blank scene, run it, added ar camera, run it, etc.  Basically start from scartch and build up to see where the problem might lie.  Are you getting this issue on testing in the editor, building, running on device?  Have you inspected all gameobjects for missing scripts?

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