title: iOS Simulator download and install fails - XCode 6.4 on El-Capitan 10.11 beta
body: <p>I get the following error message:</p>
  
  <blockquote>
    <p>Could not download and install iOS 7.1 Simulator. Authorization is required to install the packages.</p>
  </blockquote>
  
  <p>The issue is for XCode 7 beta versions too. I have tried the latest one available as of today on developer.apple.com</p>
  
  <p>I think it is related to OS upgrade to El-Capitan as Simulator downloads work pretty fine for my other colleagues working on Yosemite still, for both XCode 6.4 and XCode 7 beta versions. What could be causing this error and how do I solve it?</p>