title: Super expression must either be null or a function, not undefined - react-google-maps
body: <p>Whenever I am importing this @react-google-maps library I am getting this error. Can anyone help me with this issue?</p>
  
  <p>This is my component - </p>
  
  <pre><code>const {withScriptjs, withGoogleMap, GoogleMap, Marker} = require('react-google-maps');
  
  const VenueMap = React.createClass({
      getInitialState() {
          const {eventData} = this.props;
          const stateObj = {
              position: {
                  lat: eventData.venue.latitude,
                  lng: eventData.venue.longitude,
              },
              defaultZoom: 17
          };
          return stateObj;
      },
      render: function () {
          const {state} = this;
          const MapComponent = compose(
              withProps({
                  googleMapURL: GOOGLE_MAP.mapURL,
                  loadingElement: &lt;div style={{height: `100%`}}/&gt;,
                  containerElement: &lt;div style={{height: `300px`, marginBottom: `30px`}}/&gt;,
                  mapElement: &lt;div style={{height: `100%`}}/&gt;
              }),
              withScriptjs, withGoogleMap
          )(props =&gt; (
              &lt;GoogleMap
                  defaultZoom={state.defaultZoom}
                  defaultCenter={state.position}&gt;
                  {props.isMarkerShown &amp;&amp; &lt;Marker position={state.position}/&gt;}
              &lt;/GoogleMap&gt;
          ));
          return (
              &lt;div id="venuelocation" className="contents-wrapper"&gt;
                  &lt;div className="orgname" style={{paddingBottom: '20px'}}&gt;Venue Location&lt;/div&gt;
                  &lt;MapComponent isMarkerShown={true}/&gt;
              &lt;/div&gt;
          );
      }
  });
  </code></pre>
  
  <p>I am using react 16.3.2 reactjs version.</p>