title: what's wrong with setSectionResizeMode in qt?
body: <p>I have used qt 5.1.1 for 2 years on Ubuntu. now I install qt 5.5 on it. (I mean both versions are exist on my Ubuntu)
  actually this version of Qt framework doesn't work as good as the older one.
  so I want to use qt 5.1.1 . </p>
  
  <p>The problem is here that now I have the below error on my code:</p>
  
  <p>code:</p>
  
  <pre><code>_headerView-&gt;setSectionResizeMode(QHeaderView::Stretch);
  </code></pre>
  
  <p>error:</p>
  
  <pre><code>... error: 'class QHeaderView' has no member named 'setSectionResizeMode'
  </code></pre>
  
  <p>I found <a href="https://stackoverflow.com/questions/18592228/qt-different-tablewidget-member-names-on-workstations">this answer on this site</a>. but actually I don't get how to solve the problem! It just say its reason.</p>
  
  <p>PS: I want this line of code to stretch my table fix to my window.</p>