title: White screen after running Ionic 4 app in cordova
body: <p>I am new in ionic.
  When I started my first project in ionic 4 it worked perfectly with command
  for web 
  <strong>ionic serve</strong>
  but in case of 
  <strong>ionic cordova run android</strong> 
  it shows nothing but white screen on emulator</p>
  
  <p>Project Structure :</p>
  
  <ul>
  <li>I have only created home component</li>
  <li>ionic version 4 </li>
  <li>angular version 6.0.0</li>
  </ul>
  
  <p>Solutions I have tried</p>
  
  <p><strong>1. Removing platform than adding it again</strong>
  ionic cordova -platform rm android
  ionic cordova -platform add android</p>
  
  <blockquote>
    <p>Note : </p>
    
    <p>I have created project by adding simple blank template,
            Than generated /home component. I need help as I have created so many things in this project. but could not run it on emulator.</p>
  </blockquote>
  
  <p>If I miss anything than we can discuss.
  Thank you.</p>