title: react-native geolocation.watchPosition is not working
body: <pre><code>constructor(porps) {
    super(porps);
    this.state = {
      initialPosition: {
        latitude: 0,
        longitude: 0,
        latitudeDelta: 0,
        longitudeDelta: 0
      },
      markerPosition: {
        latitude: 0,
        longitude: 0
      }
  
  
    };
  
  
  }
  
  
  componentDidMount() {
    if (Platform.Version === 23) {
      this.setState({
        version: 23
      });
    } else {
      this.setState({
        version: 0
      });
    }
  
    navigator.geolocation.getCurrentPosition((position) =&gt; {
      var lat = parseFloat(position.coords.latitude);
      var lng = parseFloat(position.coords.longitude);
  
      var initialRegion = {
        latitude: lat,
        longitude: lng,
        latitudeDelta: latitudeDelta,
        longitudeDelta: longitudeDelta
      };
  
      var testPos = {
        latitude: lat,
        longitude: lng,
      }
  
      this.setState({
        initialPosition: initialRegion
      });
      this.setState({
        markerPosition: initialRegion
      });
  
    }, (error) =&gt; alert(JSON.stringify(error)), {
      enableHighAccuracy: true,
      timeout: 20000,
      maximumAge: 1000
    })
  
    this.watchId = navigator.geolocation.watchPosition((position) =&gt; {
      var lat = parseFloat(position.coords.latitude);
      var lng = parseFloat(position.coords.longitude);
  
      var lastRegion = {
        latitude: lat,
        longitude: lng,
        latitudeDelta: latitudeDelta,
        longitudeDelta: longitudeDelta
      };
  
      this.setState({
        initialPosition: lastRegion
      });
      this.setState({
        markerPosition: lastRegion
      })
    });
  
  }
  </code></pre>
  
  <p>navigator.geolocation.getCurrentPosition - is working fine.
  navigator.geolocation.watchPosition - is giving me error.</p>
  
  <p>This code returning me an error only on android (Working perfectly on IOS).</p>
  
  <p><a href="https://i.stack.imgur.com/fpaf4.jpg" rel="nofollow noreferrer">ERROR SCREENSHOT</a></p>