Thread:Extension talk:Maps/New install issues

Just installed maps extension to replace googlemaps extension and all seemed to go well until I attempted to display a one of the example maps on my site:

results in:

Fatal error: Class 'ItemParameterManipulation' not found in /home/content/......./extensions/Maps/includes/manipulations/Maps_ParamGeoService.php on line 16.

Have I missed setting a key or a parameter somewhere (I didn't set any keys or change any defaults)

MW 1.19.3, PHP 5.3.14 (cgi-fcgi), MYSQL 5.0.96-log, Maps (Version 2.0.1), Validator (ParamProcessor) (Version 1.0 alpha), Data Values all ver 0.1