Streaming Player issue in blackberry

I am Referring the above example of Streaming Player to understand the Concept of Streaming. http://devblog.blackberry.com/2010/05/streaming-player-api/

but when i used this code i got some unexpected errors like when i am clicking on options it shows me an blank screen.and also not able play any media on the same.i searched on this but not got any useful information.i am running this code on JDE 6.0.And also when i click on the play button it gives me an "RIM MEDIA Exception"error.i开发者_高级运维f u have any suggestions please let me know. Thanks, Sagar.