When attempting to run R, I get this error:
Fatal error: cannot mkdir R_TempDir
I found two possible fixes for this problem by goog
Check for the user account with which you are launching the RStudio with. Now u check the TMP(System Environment variable) for its location. If the user who is launching RStudio has Write access for those directories you will not face this issue. Being said that you are facing this issue, all you have to do is to change the permissions for that user to have write access on those directories.