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That is problem I think It does not compile I used this copeg's suggestion and no error message is shown when I select Project->Build Project and I check "bin" folder that normally contains .class...

That does not help :-< Again "bin" folder is empty First time I got this problem I did not get solution (quickly) and I had to create new project and copy all classes to it and it started to work (no...

As I have written previously, there is none ClassMain.class !!! I have just ClassMain.java written in eclipse editor and normally in project folder i have bin and src folders and bin is just empty

That's just my typo (with ClassMain and MainClass (names are same)) Sorry for that.

Message in console is that one from my first post and it also shows one frame with name "Java Virtual Machine...

This is complete code I am talking about (project also contains a heap of other classes, none of them containing main method.


import java.io.FileNotFoundException;
import java.io.IOException;
...

I have a class named ClassMain name in my project but it does not compile (folder "Bin" does not contain any of .class files) :(

I am writing a Java project, with public static void main in ClassMain class and somehow get this NoClassDefFoundError (before, evereything worked correctly).

java.lang.NoClassDefFoundError:...