Hi, I seem to have trouble running my classes. I compile a class, but when I run it, I get error message: "java.lang.NoClassDefFoundError". I get this error even with classes that I know for sure worked before. All of the sudden I started to get this message. What's wrong here? thanks, Alex
All right brain, you don't like me and I don't like you, but let's just do this one thing so I can get back to killing you with beer.<br /> <br />- Homer Simpson
Alex, Possible causes of your problem. 1) you might have changed your classpath. 2) if you declare package statement in your class coding, you need to invoke with qualified class name (full package name + class name). 3) do not put ".class" when you run with Java.exe command. Hope it helps.