Plugin with id 'com.google.gms.google-services' not found
<p>I am using google services at the very first time in my app(ionic platform). I am following this <a href="https://developers.google.com/cloud-messaging/android/start" rel="nofollow">doc</a>. While building my app, I got the following error message. Please help out. Thank you.</p>

<p>A problem occurred evaluating script.</p>

<blockquote>
  <p>Plugin with id 'com.google.gms.google-services' not found.</p>
</blockquote>