title: Error module "QtQuick.Dialogs" is not installed
body: <p>I've got the following error upon trying to add QtQuick.Dialogs 1.(0/1/2) to my project:</p>
  
  <pre><code>qrc:/qml/main.qml:4 module "QtQuick.Dialogs" is not installed
  </code></pre>
  
  <p>Now here is the thing, if I create a completely new app (standard empty QtQuick application) and add this line and the file dialog example from QML FileDialog documentation, then there is no problem.</p>
  
  <p>Any ideas on what the problem might be?</p>