title: Unknown module QT: webkit
body: <p>I am trying to make a simple webview in Qt 5.6</p>
  
  <p>in my .pro file I have</p>
  
  <pre><code>QT       += webkitwidgets
  </code></pre>
  
  <p>I have this Error:</p>
  
  <pre><code>:-1: error: Unknown module(s) in QT: webkitwidgets
  </code></pre>