Class conversion error

Hi Friends,

I'm new to Java card technology. I set the environment variable and the remaining properly. I'm using Windows XP platform And using Java 1.4 and Java card 2.1.2. When I run "build_samples.bat" after compiling the Java file successfully, when It tries to convert the class file into JCA or CAP it says an error "unsupported class file format of version 46.0". I don't what it means and how to rectify that?

Thank you for helping me.

[465 byte] By [khaled200a] at [2007-11-27 5:37:08]