title: Error in finding QDomDocument in c++ code
body: <p>I am using Qt for reading a Xml file in C++ code. I downloaded and installed Qt5 completely. Now, I add this line to my C++ code as a header:</p>
  
  <pre><code>#include &lt;QtXml/QDomDocument&gt;
  </code></pre>
  
  <p>even I add its path in command prompt:</p>
  
  <pre><code>export CPATH="/home/shirin/qt5"
  </code></pre>
  
  <p>but still receive this error:</p>
  
  <pre><code>fatal error: QtXml/QDomDocument: No such file or directory
  </code></pre>
  
  <p>Can anyone tell me how to fix it, please?</p>