problem with connect to the internet

Hi guys,

i build mobile application that use GPRS to send data to the server and receive data from server. the application run successfully in the local host but when i move it to my mobile ( nokia 5320 xpressmusic) it does not work and NullPointerException error appear, although the server i try to connect to is alive and GPRS is enabled in my mobile.

so is there is any person can help me?

thanks in advance,

Is the application in Symbian?

yes the application for Symbian mobiles and it is built using j2me and run successfully on the local host


thanks for intrest