Error with new R 3.1.3 version

Question

I installed the new R 3.1.3. I now get the error at start up:

Error in .rs.httpdPort() : attempt to apply non-function

Help do

Answer 1

Update to RStudio version 0.98.1103, it's available (even if it says in RStudio's updater that there's not a newer version available).

Edit a few months later

Though RStudio has been updated a few times since this question was first asked, the idea remains the same for those with this problem: Update RStudio to its latest version, and remember to check the website because the auto-updater may not work.