Thread: [SLF4J] 'java.lang.NoClassDefFoundError: org/slf4j/LoggerFactory'

This is for a RuneScape Private Server.
This is on a CentOS Virtual Private Server.

[8/16/11 9:11 PM]: Exception in thread "main" [8/16/11 9:11 PM]: java.lang.NoClassDefFoundError: org/slf4j/LoggerFactory
[8/16/11 9:11 PM]: at org.apache.mina.util.NamePreservingRunnable.<init> (NamePreservingRunnable.java:32)
[8/16/11 9:11 PM]: at org.apache.mina.transport.socket.nio.SocketAccepto r.startupWorker(SocketAcceptor.java:165)
[8/16/11 9:11 PM]: at org.apache.mina.transport.socket.nio.SocketAccepto r.bind(SocketAcceptor.java:141)
[8/16/11 9:11 PM]: at server.Server.main(Server.java:144)
[8/16/11 9:11 PM]: Caused by: java.lang.ClassNotFoundException: org.slf4j.LoggerFactory
[8/16/11 9:11 PM]: at java.net.URLClassLoader$1.run(URLClassLoader.java: 202)
[8/16/11 9:11 PM]: at java.security.AccessController.doPrivileged(Native Method)
[8/16/11 9:11 PM]: at java.net.URLClassLoader.findClass(URLClassLoader.j ava:190)
[8/16/11 9:11 PM]: at java.lang.ClassLoader.loadClass(ClassLoader.java:3 06)
[8/16/11 9:11 PM]: at sun.misc.Launcher$AppClassLoader.loadClass(Launche r.java:301)
[8/16/11 9:11 PM]: at java.lang.ClassLoader.loadClass(ClassLoader.java:2 47)
[8/16/11 9:11 PM]: ... 4 more

This is the folder layout:

A typical cause of this exception is that the required libraries are not on the class path. So are all the jars in the dependency folder on the classpath?

Communicating via private messages defeats the purpose of a public forum - your solution here might help others in the future, and this is lost via PM. I recommend reading about the classpath
PATH and CLASSPATH (The Java™ Tutorials > Essential Classes > The Platform Environment)
As well as how to set it for your particular application (which I presume has some sort of help, documentation, etc)

What IDE do you use?

The OP private messaged me as well, but I agree entirely with everything copeg said. Follow his directions, and if you still have questions, ask them here (not in a private message).