Problem with Rstudio after changing R version

RStudio IDE
1

Hello,

I have tried to use an older version of R that Rstudio uses from the "Tools" menu because some package was built on another version. After I changed it, I had to restart Rstudio but it crashes and I cannot use the "Tools" to go back to the previous version I was using menu even though I do see it. My questions are:

  1. How can I get back to the previous more recent version I was using? If possible it would involve not reinstalling Rstudio. I do not have the administrators rights and would like to avoid asking him to do it for me.
  2. After 1) is solved. How can I use an older version without breaking my Rstudio?

I have also copy pasted the big error message I get when I open Rstudio.

R Session Startup Failure Report

RStudio Version

RStudio 2022.02.1+461, "Prairie Trillium" (8aaa5d47, 2022-03-17) for Windows

Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) QtWebEngine/5.12.8 Chrome/69.0.3497.128 Safari/537.36

Error message

[No error available]

Process Output

The R session exited with code 10.

Error output:

[No errors emitted]

Standard output:

[No output emitted]

Logs

C:/Users/myname/AppData/Local/RStudio/log/rsession-myname.log

2022-10-12T07:59:24.879690Z [rsession-myname] ERROR system error 67 (Nom de réseau introuvable) [path: //home/DESCRIPTION]; OCCURRED AT bool __cdecl rstudio::core::FilePath::exists(void) const src/cpp/shared_core/FilePath.cpp:885; LOGGED FROM: bool __cdecl rstudio::core::FilePath::exists(void) const src/cpp/shared_core/FilePath.cpp:885
2022-10-12T07:59:24.953494Z [rsession-myname] ERROR system error 67 (Nom de réseau introuvable) [path: //home/DESCRIPTION]; OCCURRED AT bool __cdecl rstudio::core::FilePath::exists(void) const src/cpp/shared_core/FilePath.cpp:885; LOGGED FROM: bool __cdecl rstudio::core::FilePath::exists(void) const src/cpp/shared_core/FilePath.cpp:885
2022-10-12T07:59:24.953494Z [rsession-myname] ERROR system error 67 (Nom de réseau introuvable) [path: //home/DESCRIPTION]; OCCURRED AT bool __cdecl rstudio::core::FilePath::exists(void) const src/cpp/shared_core/FilePath.cpp:885; LOGGED FROM: bool __cdecl rstudio::core::FilePath::exists(void) const src/cpp/shared_core/FilePath.cpp:885
2

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