Re: net_rim_json_org not found error in downloading
Did you also put the json package on the device? It's not on the device, so you have to put it there.
Anyway, I'm not so sure I agree with this thing that you read somewhere. The better idea, I think, is to go to json.org and get the j2me package. I would either add the package or just add the source to the project and do it that way (for pre OS 6 builds).