title: Cordova emulation of project keeps on failing
body: <p>Hello I'm trying  to build a mobile app out of cordova but I have 0 knowledge on it so I read and tried documentation of cordova but it seems like I'm stuck on the emulation part after I input <code>cordova build</code> on terminal it compiles the project and notifies me that the build was a success.. But after I ran <code>cordova emulate android</code> it compiles for a few sec then gives an error message the error message is
  <a href="https://i.stack.imgur.com/zM3Db.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/zM3Db.png" alt="enter image description here"></a>
  anyone know whats the problem here?? Basically everything I've done was from the documentation of the <a href="https://cordova.apache.org/docs/en/latest/guide/cli/index.html" rel="nofollow noreferrer">cordova site</a>. also my android emulator is running before I run the command <code>cordova emulate android</code></p>