ARSkeleton Throwing Exception in XCode

Unity Engine
, , , , ,
1

I am working on an ARkit iOS app and everything was fine but all of a sudden I’m having issues with a specific part of ARKit that I am not really making use of in my project and I’m not sure why it’s become a problem suddenly. I can build the project fine in Unity and XCode but when I run the app from XCode I run into an exception being throne:

An uncaught exception was raised
-[ARSkeleton3D initWithCoreRESkeletonResult:]: unrecognized selector sent to instance 0x6000008f5a40

I’m not entirely sure what ARSkeleton3D is used for but I’m fairly certain I’m not calling anything from that namespace in my code and it appears the exception is being raised from within the Unity framework. I could be wrong but I can’t seem to get this exception to go away. I suppose I could have some code left exposed that should be inside a try catch.

2

This exception is being raised in Objective-C, not your C# code.

If I had to guess, this is likely a version incompatibility issue. Please share the following:

  • Unity version
  • AR Foundation version
  • Apple ARKit XR Plug-in version
  • Xcode version
  • iOS version on the device

Note that in ARKit XR Plug-in 5.1.5 we raised the minimum required Xcode version to 15.4, as noted in our changelog: Changelog | Apple ARKit XR Plugin | 5.1.5.