title: When opening Xcode looping authentication when installing additional components
body: <p>On OS X 10.10.1 and with Xcode 6.1.1 on Xcode startup, I am presented with a dialog box:</p>
  
  <p>"Install additional required components?
  Xcode requires additional components to support running and debugging. Choose install to add required components"</p>
  
  <p>If I select "Quit" Xcode quits, which is no good to me.</p>
  
  <p>If I select "Install" I'm presented with dialog "Xcode wants to make changes. Type your password to allow this." When I authenticate, I'm left with the original dialog above. It is an endless loop that prevents me from using Xcode.</p>
  
  <p><code>id -p</code> in terminal returns:</p>
  
  <blockquote>
    <p>groups staff com.apple.sharepoint.group.1 everyone local accounts
    _appserverusr admin _appserveradm _lpadmin _appstore _lpoperator _developer com.apple.access_screensharing com.apple.access_ssh</p>
  </blockquote>
  
  <pre><code>[MM-laptop]~$xcode-select -p
  </code></pre>
  
  <p>in terminal returns</p>
  
  <pre><code>/Applications/Xcode.app/Contents/Developer
  </code></pre>
  
  <p>Xcode has been deleted and freshly installed.</p>
  
  <p>I do not know how to diagnose and  correct the problem despite all the research. Can anyone assist?</p>