title: Generate Device token in android for react native app
body: <p>I've tried to generate device token using FCM in android device. But got the following issue <a href="https://i.stack.imgur.com/EmlNU.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/EmlNU.png" alt="fcm_error"></a></p>
  
  <p>I've updated <code>Google play services</code> and checked the path of <code>google-services.json</code> all seems to be fine , but still same error. Can anybody help me to fix this issue?</p>