VS error when deploying Hololens2 app. Cannot find GameAssembly.lib

Question

VS error when deploying Hololens2 app. Cannot find GameAssembly.lib

deceadev 1

My client and me are having problems to deploy the app in his machine (in my machine it works perfectly), so he can test the app in his headset (we work remotely). He has cloned the project and I've checked via teamviewer that he has the correct Unity settings and VS settings.. I can remotely build the app successfully in Unity but when I try to build and deploy the vs solution via VS 2019, I always get the same error in his machine....

This is the error (MapFileParser.exe / Cannot find GameAssembly.lib):

It says that it cannot open the library GameAssembly.lib.. I realised that the Build folder does not contain the file GameAssembly.lib. Somehow that library is not being generated...

Please, someone who can help me with this issue ? I've tried many things so far. The machine has all the tools, proper software versions, I've followed all the steps of MS official documentation....
Also, I've tried with deploying via WIFI and USB, same result.

Thanks!

Hernando Ren 2,171 Reputation points

2021-08-02T06:16:51.16+00:00

Could you paste the log messages of the "Output" window in Visual Studio after the build fails? It is recommended you tried to delete the previous "build" directory and rebuild it in Unity. Then, repairing the installation of VS and ensure that you update to Visual Studio 2019 version 16.8 or higher. Besides, please double-check the workload Desktop development with C++ has been installed in VS correctly. For more information please see:Installation checklist
deceadev 1 Reputation point

2021-08-04T08:17:40.477+00:00

Hi @Hernando Ren ,

Thanks for your reply.
I already checked the installation checklist and everything was fine. Also, I made a new "build" directory in Unity in his machine. Same issue. Attached are the log messages of the "Output" window:

120451-buildoutput.txt
Hernando Ren 2,171 Reputation points

2021-08-06T06:51:46.1+00:00

As a test, please try to create a simple UWP project from the Visual Studio and deploy it to your HoloLens. Do you see the same behavior? Besides, could you provide the version number of your Unity and Visual Studio?
Hernando Ren 2,171 Reputation points

2021-08-19T08:48:54.347+00:00

Possibly because some overactive anti-virus apps (including Defender) blocking GameAssembly.lib. Could you disable your anti-virus for the build folder and try again?