Hello,
There was a thread with an identical problem to what I have now back in December but has been closed for no responses after 21 days: RStudio - Fatal Error Occurred and now I can't process anything
I'm having an identical issue where I open RStudio and within 10s it throws up the "fatal error" message. I have restarted my computer, reinstalled RStudio entirely, and cleared my default working directory of any R related environment files (.Rhistory or .Rdata) and am still getting the message. I'm pretty stuck at this point so any suggestions very much welcomed!
Thanks,
Luke