title: Unable to set firestore().settings({ timestampsInSnapshots: true }) in App
body: <p>I trying to add this statement to my app to forget the known warning:</p>
  
  <blockquote>
    <p>The behavior for Date objects stored in Firestore is going to change
    AND YOUR APP MAY BREAK...</p>
  </blockquote>
  
  <p>I've wrote:</p>
  
  <pre><code>import * as firebase from 'firebase';
  import '@firebase/firestore';
  
  export default class App extends React.Component {
        componentWillMount() {
          const config = {
            apiKey: '...',
            authDomain: '...',
            databaseURL: '...',
            projectId: '...',
            storageBucket: '...',
            messagingSenderId: '...'
          };
  
          firebase.initializeApp(config);
  
          const settings = { timestampsInSnapshots: true };
  
          firebase.firestore().settings(settings);
        }
  </code></pre>
  
  <p>This is the way it's suggested by many, like this answer:</p>
  
  <p><a href="https://stackoverflow.com/questions/51479679/firebase-update-error-the-behavior-for-date-objects-stored-in-firestore-is-goin">Firebase update error: The behavior for date objects stored in Firestore is going to change and your app may break</a><a href="https://stackoverflow.com/questions/51479679/firebase-update-error-the-behavior-for-date-objects-stored-in-firestore-is-goin">1</a></p>
  
  <p>I do what it's suggested here but Im unable to get out of this error...</p>
  
  <blockquote>
    <p>Error: FirebaseError: Unknown option 'timestampsInSnapshots' passed to
    function settings(). Available options: host, ssl, credentials</p>
  </blockquote>