I finally found the problem. No access to C:\Users\prg01\.templateengine
Filename Process ID Process Name Operation Error Code Error Description Error Count First Error Time Last Error Time Response Time Process Path
C:\Users\prg01\.templateengine\vs 16044 devenv.exe Open File 0xc0000022 {Access Denied}
A process has requested access to an object, but has not been granted those access rights.
3 2020-11-05 9:42:55 PM 2020-11-05 9:42:55 PM 0.007 ms C:\Program Files (x86)\Microsoft Visual Studio\2019\Community\Common7\IDE\devenv.exe