title: Xcode 7 - Code coverage data generation failed
body: <p>When I run my tests I get an error:</p>
  
  <blockquote>
    <p>Code coverage data generation failed.<br>
    Unable to retrieve the profile data files from 'UIDevice'.</p>
  </blockquote>
  
  <p><a href="https://i.stack.imgur.com/5U3we.png"><img src="https://i.stack.imgur.com/5U3we.png" alt="enter image description here"></a></p>
  
  <p>On console was printed warning:</p>
  
  <blockquote>
    <p>Timed out waiting 120 seconds for simulator to boot, current state is 1.</p>
  </blockquote>
  
  <p>What is the reason?</p>