title: How to remove old R base package? (R studio not working after update)
body: <p>I recently updated R from 2.15 to 3.1.  Since the update, I have not been able to run R-Studio.  R (v3.1) runs just fine independent of R-Studio.  I have also tried uninstalling and re-installing R-Studio, but it won't open.  Based on some sleuthing, the problem seems that R-Studio has a conflict with the older base package.  (My operating system is Mavericks.)</p>
  
  <p>I found a terminal command to run to check the versions -- and this is what I got:  </p>
  
  <p>$ ls /Library/Frameworks/R.framework/Versions/
  2.15    3.1 Current</p>
  
  <p>Ok, I admit that I am not proficient with terminal commands, so I am hoping somebody could offer or point me to directions to remove the old base package.  Or, if you believe that the problem with R Studio is something else, let me know!</p>
  
  <p>Thanks,
  Brian</p>