Main Class not found after building project

[TheWolf]

Hello,

I'm quite new to this Forum and didn't find anything in the search, so please just give me a link if I've overseen something.
I just started my first Java projects and everything works well; I can run the project without any problems inside Netbeans. But as soon as I build the project and try to execute the .jar file in \dist\ directory, the cmd opens (for about a millisecond and gives me an java.lang.NoClassDefFoundError ("Could not find the main class").

Do you have any ideas why this is happening? There are two libraries included, I've added both to the classpath (in <projectname>->Properties) and both do exist in \dist\lib directory.

Thanks in advance for your help

TheWolf

[jyeary]

This is the wrong forum for GUI based questions, please use the