Exception every single frame

Unity Engine
1

Hello – I’ve used various releases of the holotoolkit, most recently the 2017.2 rc2. I’ve tried it with Unity 2017.3.1f1, 2017.4.1f1 and 2018.1.0b13

I keep getting exceptions like this during runtime
“Exception thrown at 0x76E62552 in arvisualizer.exe: Microsoft C++ exception: _com_error at memory location 0x0CCB9C38.”

I’ve even removed or deactivated absolutely everything in my scene except for the main camera.

I’ve tried multi-pass rendering, single-pass, .net 3.5 runtime, .net 4 runtime, il2cpp backend, .net backend (with this version of holotoolkit i seem to only be able to use il2cpp, so vuforia isn’t an option).

I have no idea why this exception is being thrown, but, as one might expect, it significantly affects performance.

Any clues? Has anyone else encountered this?

2

Can you provide the call stack? The exception is not much help on seeing what the issue is, have you try building to a fresh build folder?

3

Sure – this is what I get from the call stack

KernelBase.dll!_RaiseException@16()
msvcrt.dll!76a5ac19()
[Frames below may be incorrect and/or missing, no symbols loaded for msvcrt.dll]
[External Code]
UnityPlayer.dll!5482edb5()
UnityPlayer.dll!54921798()

I can’t seem to get more information – it fails to load the pdb for KernelBase, and source is not available