GraphStream help

[Vladimir Gligorijevic <vgligorijevic AT gmail.com>]

Hi, 

I am using your GraphStram Java library mainly for visualization network growth and is very helpful and pretty awesome...
but, I have one problem. I'm using eclipse and when I make a .jar file and run it from my terminal I get this error:

Exception in thread "main" java.lang.NoClassDefFoundError: org/graphstream/graph/Graph
Caused by: java.lang.ClassNotFoundException: org.graphstream.graph.Graph
    at java.net.URLClassLoader$1.run(URLClassLoader.java:202)
    at java.security.AccessController.doPrivileged(Native Method)
    at java.net.URLClassLoader.findClass(URLClassLoader.java:190)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:306)
    at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:247)
Could not find the main class: eccs2010.Tutorial1. Program will exit.

So, I don't now what is wrong but I would be very grateful if could you please help me to solve this or give me some tip. (also, I should menshon )

Thank you in advance!

Cheers

Vladimir