I can't use sponge with multicraft i get errors

Hi please can someone help me i keep getting errors

31.05 07:45:58 [Multicraft] Not restarting crashed server.
31.05 07:45:58 [Multicraft] Server stopped
31.05 07:45:58 [Multicraft] Looks like a crash, check the server console. Return value: 1
31.05 07:45:58 [Multicraft] Server shut down
31.05 07:45:58 [Server] INFO at net.minecraftforge.fml.relauncher.ServerLaunchWrapper.main(ServerLaunchWrapper.java:12)
31.05 07:45:58 [Server] INFO at net.minecraftforge.fml.relauncher.ServerLaunchWrapper.run(ServerLaunchWrapper.java:25)
31.05 07:45:58 [Server] INFO at java.lang.Class.forName(Unknown Source)
31.05 07:45:58 [Server] INFO at java.lang.Class.forName0(Native Method)
31.05 07:45:58 [Server] INFO at java.lang.ClassLoader.loadClass(Unknown Source)
31.05 07:45:58 [Server] INFO at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source)
31.05 07:45:58 [Server] INFO at java.lang.ClassLoader.loadClass(Unknown Source)
31.05 07:45:58 [Server] INFO at java.net.URLClassLoader.findClass(Unknown Source)
31.05 07:45:58 [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
31.05 07:45:58 [Server] INFO We appear to be missing one or more essential library files.
31.05 07:45:58 [Multicraft] Loaded config for “Default”
31.05 07:45:58 [Multicraft] Starting server!
31.05 07:45:58 [Multicraft] Loading server properties
31.05 07:45:58 [Multicraft] Received start command

Can you post the full crash log? Does it eork with just Forge? It says that it’s missing a required library, are you sure you installed everything correctly?

it doesn’t work with just forge as well and im sure i installed it right coz i followed a video that worked then uploaded the stuff that he did on to multicraft.

Just try installing it again, and make sure you get every single library. Was the video by any chance… old?

Also, could you post the crash log so that we can see what library is missing?