JavaCard OS

In my javacard prj, I created two packages: com.cert and com.sim, and sim imported cert package

then I get error like this:
"error: export file cert.exp of package com.cert not found. "
"[ INFO: ] conversion completed with 1 errors and 0 warnings."

In fact the cert.exp was successfully generated, and the project still can't find the exported file

can someone tell what should I do? much appreciated

ps: I'm using eclipse with java_card_kit-classic-3_0_5 and I'v set the environment variable JC_HOME and JAVA_HOME

This is my test applet structure, that's OK. What's the structure of your project?

I'v worked it out by setting my export path, thanks for your help~

OK.