Forge Server Missing Files

Hi, I've been experiencing some problems with a Forge server. Here is the log.

02.08 18:21:02 [Server] INFO /run.sh: line 31: 10706 Killed /monitor.sh "$PID" "$USER"
02.08 18:21:01 [Server] INFO at net.minecraftforge.fml.relauncher.ServerLaunchWrapper.main(ServerLaunchWrapper.java:34)
02.08 18:21:01 [Server] INFO at net.minecraftforge.fml.relauncher.ServerLaunchWrapper.run(ServerLaunchWrapper.java:52)
02.08 18:21:01 [Server] INFO at java.lang.Class.forName(Class.java:348)
02.08 18:21:01 [Server] INFO at java.lang.Class.forName0(Native Method)
02.08 18:21:01 [Server] INFO at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
02.08 18:21:01 [Server] INFO at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:331)
02.08 18:21:01 [Server] INFO at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
02.08 18:21:01 [Server] INFO at java.net.URLClassLoader.findClass(URLClassLoader.java:381)
02.08 18:21:01 [Server] INFO You will need to add them to your server before FML and Forge will run successfully.java.lang.ClassNotFoundException: net.minecraft.launchwrapper.Launch
02.08 18:21:01 [Server] INFO We appear to be missing one or more essential library files.
02.08 18:21:00 [Server] INFO /usr/bin/java $START
02.08 18:21:00 [Multicraft] Loaded config for "Mod: Custom Server"
02.08 18:21:00 [Multicraft] Starting server!
02.08 18:21:00 [Multicraft] Loading server properties

Thanks.