Excpetion while Deploying to HoloLens

I try to use the spatial mapping script for Hololens in the MixedRealityToolkit-Unity-2018.9.0-Beta.unitypackage using Unity 2018.2.18f. After Build Unity Project and opening in Visual Studio and trying to deply on the Device:


First Exception:

Code (CSharp):

1. Exception thrown at 0x7720F2B2 in Working.exe: Microsoft C++ exception: Platform::COMException ^ at memory location 0x026DF7E0. HRESULT:0x80072EE7 The text associated with this error code could not be found.
2. WinRT information: The server name or address could not be resolved
3.  

and again and again the same Exception:

Code (CSharp):

1. Exception thrown at 0x7720F2B2 in Working.exe: Microsoft C++ exception: Platform::COMException ^ at memory location 0x026DF7E0. HRESULT:0x80072EE7 The text associated with this error code could not be found.
2. WinRT information: The server name or address could not be resolved
3.  
4.  

Also did clean solution and redeploy. The exception is thrown on line 579 in excptptr.cpp file.

 

How are you deploying in Visual Studio? Is the HoloLens attached via the USB cable or are you deploying over WiFi?

Thanks!
David (Microsoft)

 

Over USB.

I got often such errors, the newst one is in Class.cpp:

Code (CSharp):

1. Exception thrown at 0x5D60B35C (GameAssembly.dll) in Working.exe: 0xC0000005: Access violation reading location 0x000000C1.

Or these ones:

Code (CSharp):

1. Unhandled exception at 0x77080EE1 (ntdll.dll) in Working.exe: 0xC00000FD: Stack overflow (parameters: 0x00000001, 0x02A02FF4).
2.  

Code (CSharp):

1. Unhandled exception at 0x7706F40B (ntdll.dll) in Working.exe: 0xC0000005: Access violation writing location 0x02A00FF4.

What I do is start a new project => it compiles and deploys without errors, than I do some changes (like add a new Cube or add Spatialmapping ...) and then I have these exceptions.. What exactly triggers those errors: I have no idea!