title: Xcode 8 | iOS 10 simulator "Error returned in reply: Connection invalid"
body: <p>While I am try to run an app in the <strong>iOS 10 simulator</strong> using <code>xcode8</code> I get these alerts frequently. They randomly appear two at a time and it is not apparent what is triggering them.</p>
  
  <p>Below is Image for Error I got. </p>
  
  <p><a href="https://i.stack.imgur.com/hauBO.png" rel="noreferrer"><img src="https://i.stack.imgur.com/hauBO.png" alt="Error Screen shot."></a></p>
  
  <p>I tried Following things. </p>
  
  <ul>
  <li>Clean &amp; Rebuild an app</li>
  <li>Restart xcode &amp; Simulator</li>
  <li>Clear Derived Data &amp; Rebuild application.</li>
  </ul>