unable to initialize nokia maps on webpage

**ShadoW69** · 2012-12-07, 09:33

we are building a touristic portal which will have nokia maps integrated to display touristic units(hotel, motel...) based on browsing city. when ever i try to run any off the predefined examples in the javascript explorer i get this error in IE "SCRIPT5007: Unable to get value of the property ownerDocument': object is null or undefined map-js-p2d-dom.js, line 147 character 349" and "TypeError: a is null" in firefox. i set the appid and and token to the one given by my new app, but its not working. i also tried to set it to the demo one from the javascript explorer(pure copy/paste) and its still not working... i also tried to copy/paste in a plain html document on my pc and just run it from there but no luck same error...
am i doing something wrong?

**jasfox** · 2012-12-10, 08:02

The problem you are having is in the code initializing the map. The <DIV> you are passing into the nokia.maps.map.Display does not exist.

I can reproduce your error by taking the following working map and altering it as follows:

Here is a working map (header AND styling removed for clarity) :

Code:

...
<body>
		<div id="mapContainer"></div>
		<script type="text/javascript">

			nokia.Settings.set( "appId", "YOUR APP ID GOES HERE"); 
			nokia.Settings.set( "authenticationToken", "YOUR AUTHENTICATION TOKEN GOES HERE");

var mapContainer = document.getElementById("mapContainer");

var DefaultLatitude = 52.516237;
var DefaultLongitude = 13.377686;
var defaultZoomLevel = 16;

var mapOptions =
{
    baseMapType: nokia.maps.map.Display.NORMAL,
    center: new nokia.maps.geo.Coordinate(DefaultLatitude, DefaultLongitude),    
    zoomLevel: defaultZoomLevel,
    components: []
};

  var map = new nokia.maps.map.Display(mapContainer, mapOptions);
 </script>
	</body>
</html>

If I change the reference to the mapContainer to a non-existant <DIV>

Code:

var mapContainer = document.getElementById("NOTmapContainer");

I get the TypeError: a is null http://api.maps.nokia.com/2.2.3/map-js-p2d-canvas.js Line 135 message in firefox.

**ShadoW69** · 2012-12-10, 12:51

thank you for the reply. yes your example worked and comparing the one you supplied and the one i was trying to do i realized that i need to initialize nokia maps after the mapContainer. i had the script in the header and needed to put it after the map container was set. now its working perfectly. thank you again :)

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