title: google_app_id missing and Google services failed to inittialize
body: <p>I've imported a project from my desktop which is already built and runnig. but when try in my computer,it is giving me the below errors.  what does google app id mean? what might be the cause for such type of errors.
  thanks in advance.</p>
  
  <p>logcat:</p>
  
  <pre>
  02-08 13:14:46.328 23043-23043/ E/GMPM: GoogleService failed to initialize, status: 10, Missing an expected resource: 'R.string.google_app_id' for initializing Google services.  Possible causes are missing google-services.json or com.google.gms.google-services gradle plugin.
  02-08 13:14:46.328 23043-23043/ E/GMPM: Scheduler not set. Not logging error/warn.
  02-08 13:14:46.358 23043-23073/ E/GMPM: Uploading is not possible. App measurement disabled
  02-08 13:14:46.500 23043-23043/E/F: NO ACCOUNT ID
  </pre>