Google MAP API Uncaught TypeError: Cannot read property ‘offsetWidth’ of null

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I’m trying to use Google MAP API v3 with the following code.

<h2>Topology</h2>

<script src="https://maps.google.com/maps/api/js?sensor=false" type="text/javascript"></script>

<link rel="stylesheet" type="text/css" href="{% url css_media 'tooltip.topology.css' %}" />
<link rel="stylesheet" type="text/css" href="{% url css_media 'tooltip.css' %}" />

<style type="text/css" >
      #map_canvas {
              width:300px;
            height:300px;
     }
</style>

<script type="text/javascript">

var latlng = new google.maps.LatLng(-34.397, 150.644);
var myOptions = {
zoom: 8,
      center: latlng,
      mapTypeId: google.maps.MapTypeId.ROADMAP
};
var map = new google.maps.Map(document.getElementById("map_canvas"),
            myOptions);

</script>

<div id="map_canvas"> </div>

When I run this code, the browser says this.

Uncaught TypeError: Cannot read property ‘offsetWidth’ of null

I have no idea, since I follow the direction given in this tutorial.

Do you have any clue?

26 Answers
26

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