title: git push xcrun: error: active developer path does not exist
body: <p>i recently deleted xcode 6 beta 3 and installed xcode 6 beta 6</p>
  
  <p>when i entered gitpush in the terminal this happened</p>
  
  <p>xcrun: error: active developer path ("/Applications/Xcode6-Beta3.app/Contents/Developer") does not exist, use <code>xcode-select --switch path/to/Xcode.app</code> to specify the Xcode that you wish to use for command line developer tools (or see <code>man xcode-select</code>)</p>