I have the following in my html page:

    <script type=text/javascript

            src=http://maps.googleapis.com/maps/api/js?libraries=geometry&sensor=false>

    </script>

    <script 

        async defer

        src=https://maps.googleapis.com/maps/api/js?key=hUnDAdjYG_Wz7u2qL6unHqfBOmvaZ0H1Mg&callback=initMap>

    </script>

First link is for Google's API Geometry Library , and the second initialises and draws the map.

I'm getting the error You have included the Google Maps API multiple times on this page. This may cause unexpected errors.

I know that this can be fixed by calling just one script, and changing the parameters, see Fixing "You have included the Google Maps API multiple times on this page. This may cause unexpected errors." I don't know how to replicate the answer for my problem though.