title: Can not #include <QQuickView> (or <QtQuick>).
body: <p>I have a problem with including QQuickWindow into Qt application. </p>
  
  <p>I am integrating Qml into Qt application that wasn't build by me. That was successfully so far. I added </p>
  
  <pre><code>QT += qml quick 
  </code></pre>
  
  <p>into my project file. Also I included </p>
  
  <pre><code>#include &lt;QtQml&gt;
  #include &lt;QQuickView&gt;
  </code></pre>
  
  <p>into main cpp. </p>
  
  <p>And then I used QQmlApplicationEngine to load Qml code. And that worked great. </p>
  
  <p>But since last build, Qt Application was changed and I can't include QQuickView or QtQuick anymore. </p>
  
  <p>I got some errors that I don't see how they are connected with my problem. Like: </p>
  
  <pre><code> C2371: 'int32_t' : redefinition; different basic types
  </code></pre>
  
  <p>or </p>
  
  <pre><code> C2375: 'ioctlsocket' : redefinition; different linkage
  </code></pre>
  
  <p>A lot of errors like that. 
  So I am stuck with this. Any help would be appreciated. </p>
  
  <p>And I am using  Qt 5.3.1 (MSVC 2010, 32 bit)</p>
  
  <p>Thanks.</p>