[dilw]

Hey guys,
I'm new to BB app development. I installed webworks and started on my first App. I finished it and it ran on the simulator. But then when it came to runing it onto the phone itself, I had a problem. I loaded it useing the desktop manager and the phone works as normall. But when I try to run the app I get a message saying "Class 'net.rim.device.api.web.Widget Config' not foundxxx65279;"
I tried online but couldnt find a solution. Then i tried running a simple 'hello world' but that too has the same problem.
So i realized its something wrong with my app setup rather than the app itself.
Can someone tell me why this error comes up normally?