I'm using the extension for the first time in a my solution, with the new Visual Studio 2019.
I have some solution folders where there are some document files (release_notes.txt & c).
Seems that TSVN is not able to manage these files, every time, for every command, raise the exception (exception translated from the Italian language, I'm not sure that the exception description is exactly that):
Incorrect parameter. (Exception from HRESULT: 0x80070057 (E_INVALIDARG))
All these 'solution folder' are present also on disk inside the working copy root!