title: The iOS 8.1 simulator runtime is not available error in Xcode 6.1
body: <p>I was using Xcode 6.0.1 till now and things were fine. Then I upgraded to Xcode 6.1 and tried running my application(which has a deployment target of 7.0) in iPhone 6 simulator. But it shows an error message : </p>
  
  <blockquote>
    <p><strong>The iOS 8.1 simulator runtime is not available</strong>. Download the iOS 8.1 simulator runtime from the Downloads section in Xcode's Preferences</p>
  </blockquote>
  
  <p>I manually deleted the earlier Xcode (6.0.1) and installed 6.1 from a dmg. 
  I tried searching across but couldn't find related stuff. Any help would be appreciated.</p>
  
  <p><img src="https://i.stack.imgur.com/4sUTE.png" alt="Screenshot for warning"></p>