title: Ionic 3 Error : when command run ionic cordova run android
body: <p>ionic 3 Error : when commend run </p>
  
  <blockquote>
    <p>cordova platform add android --save
    <strong>× Running command - failed!
    [WARN] Platform already added. Saving platforms to config.xml.</strong>
    Platform android is not installed! Would you like to install it? (Y/n)</p>
  </blockquote>
  
  <p>and when i try run</p>
  
  <blockquote>
    <p>cordova run android shown 
    Error: Source path does not exist: resources/android/icon/drawable-hdpi-icon.png</p>
  </blockquote>