google is not defined

[mychaelgo]

this my code for render google map

 return (
            <div>
                Dashboard
                <GoogleMap
                    containerProps={{style: {height: "100%"}}}
                    ref="map"
                    defaultZoom={3}
                    defaultCenter={{lat: -25.363882, lng: 131.044922}}>

                </GoogleMap>
            </div>
        );

but i got error

Unhandled promise rejection ReferenceError: google is not defined(…)

did i missed something?

[a-type]

For posterity: this problem is caused by not including the Google Maps JS script in your document.

[tomchentw]

Thanks @mychaelgo and @a-type. I've added a warning message in #168