title: cordova is not available
body: <p>I'm trying to open PDF file in ionic with @ionic-native/file-opener and getting cordova problem. </p>
  
  <blockquote>
    <p>Native: tried calling FileOpener.open, but Cordova is not available. Make sure to include cordova.js or run in a device/simulator</p>
  </blockquote>
  
  <p>How can I solve it?</p>