Java MIDlets?

[YoussefGamil]

Hi,

When I made a Java MIDlet App for Nokia 3510i.... put it in JAR form.

When I tried to test the JAR file in the emulator it worked good.

BUT,When I sent it to the phone it said:"Invalid file".

So,Where is the mistake?

It is the JAD file?Why?and how to make it work?