I was trying to deploy Google Maps over the air from a BES we manage for one of our customers. It looked like it installed correctly to the Blackberry, but I was receiving the following message when trying to launch the application from the device.
“Class ‘net.rim.device.api.system.WLANInf0$WLANAPInfo’ not found”
The problem was the lack of free space on the device. Check the free space available on the Blackberry device (Settings/Options > Status). I encountered this error several times when trying to push the application down to a group of pilot users. Most users had other languages installed on the device which took up a substantial amount of room, and after removing the languages and the failed install of Google Maps, it pushed down again successfully.