title: NSInvalidUnarchiveOperationException: 'Could not instantiate class named _UITableViewCellSeparatorView'
body: <p>After Xcode Update (5.1) my app crashes when i try to run in iOS 6.x.</p>
  
  <p>I have an app where I have a custom cell and constraints. </p>
  
  <p>Auto layout is unchecked for the xib file. The error I get is:</p>
  
  <blockquote>
    <p>*** Terminating app due to uncaught exception 'NSInvalidUnarchiveOperationException', reason: 'Could not instantiate
    class named _UITableViewCellSeparatorView'</p>
  </blockquote>
  
  <p>I only found <a href="https://forums.xamarin.com/discussion/14691/app-crashes-after-xcode-update" rel="nofollow noreferrer">one thread about this issue in another forum</a>, but without a solution, just a test that I've done too and got the same error.</p>