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
Just had this issue and finally solved it. Simply a windows permission issue. Go to environment variables and find the location of the temp folders. Then right click on the folder > properties > security > advanced > change everyone to full control > tick "replace all child object permission entries with inheritable permission entries from this object" > Ok > ok.