title: module "QtMultimedia" is not installed
body: <p>I've installed Qt and Qtcreator on a Raspberry Pi 3 using the normal <em>apt-get install</em> method. Everything seems to work fine except when I try to build the declarative-camera example or other multimedia examples I get an error saying <code>module "QtMultimedia" is not installed</code>. Then the empty white application window pops up.</p>
  
  <p>I've tried installing and reinstalling all the required packages such as <code>libqt5multimedia5</code>, <code>qtmultimedia5-dev</code>, <code>etc</code> and it just says they are installed with newest version.</p>
  
  <p>Has anyone had success with getting qt multimedia working on raspberry pi? </p>
  
  <p><strong>Edit:</strong><br>
  I tried using the suggested solution of: 
  <code>sudo apt-get install qtdeclarative5-qtmultimedia-plugin</code></p>
  
  <p>That gives me an error of:
  <code>E: Unable to locate package qtdeclarative5-qtmultimedia-plugin</code></p>