Server Crashes on StartUp

[ojos7435]

Hi, I'm trying to make a Tekxit 3 server for me and my friends. However, upon starting it up, the server crashes with the following errors:

4.04 23:33:15 [Multicraft] Loading server properties
24.04 23:33:15 [Multicraft] Starting server!
24.04 23:33:15 [Multicraft] Loaded config for "Custom"
24.04 23:33:16 [Multicraft] Updating eula.txt file
24.04 23:33:16 [Server] INFO We appear to be missing one or more essential library files.
24.04 23:33:16 [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
24.04 23:33:16 [Server] INFO at java.net.URLClassLoader.findClass(Unknown Source)
24.04 23:33:16 [Server] INFO at java.lang.ClassLoader.loadClass(Unknown Source)
24.04 23:33:16 [Server] INFO at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source)
24.04 23:33:16 [Server] INFO at java.lang.ClassLoader.loadClass(Unknown Source)
24.04 23:33:16 [Server] INFO at java.lang.Class.forName0(Native Method)
24.04 23:33:16 [Server] INFO at java.lang.Class.forName(Unknown Source)
24.04 23:33:16 [Server] INFO at cpw.mods.fml.relauncher.ServerLaunchWrapper.run(ServerLaunchWrapper.java:25)
24.04 23:33:16 [Server] INFO at cpw.mods.fml.relauncher.ServerLaunchWrapper.main(ServerLaunchWrapper.java:12)
24.04 23:33:16 [Multicraft] Server shut down (starting)

Any ideas on what is wrong?

Thanks.