title: "loaded nib but the view outlet was not set" exception
body: <p>I am trying to use <code>UINavigationController</code>. I have two views which are being created programmatically. When a <code>UIButton</code> is pressed on the <em>first view</em>, the <em>second view</em> should come to foreground. </p>
  
  <p>But here application crash with exception:</p>
  
  <blockquote>
    <p>loaded nib but the view outlet was not set</p>
  </blockquote>
  
  <p>What can be cause of this and how to resolve it.</p>