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!