title: Qt no service found for - "org.qt-project.qt.mediaplayer"
body: <p>I'm using Ubuntu 16.04.</p>
  
  <p>When I'm using Qt Creator with Qt 5.9.2, nothing goes wrong.</p>
  
  <p>However, after I switch to Qt 5.10.0 and use static linking, the error appears:</p>
  
  <p>First, <code>qmake</code> outputs several lines of <code>Empty filename passed to function</code>.</p>
  
  <p>Then, after <code>make</code>, the application outputs several lines of <code>defaultServiceProvider::requestService(): no service found for - "org.qt-project.qt.mediaplayer"</code> and crashes.</p>
  
  <p>Is there any solution to it?</p>
  
  <p>Thanks in advance.</p>