[Users] Printing Error: center.lon is null or not an object

[Graeme Gould]

Hi

I am just starting out using GeoExt and have been trying to get my map to print using the Geoserver Printing Module but keep getting an error saying 'center.lon is null or not an object |  PrintProvider.js | line 401'

Does anyone have any idea why this might be?  I am using GeoExt 1.0, Geoserver 2.1.1 and ext 3.2.1.  I have tried with both the GET and Post methods and have got the <script type="text/javascript" src="http://IPAddress/geoserver/pdf/info.json?var=printCapabilities"></script> line in the main html.

Any help would be greatly appreciated

Graeme


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