Gala0111

That seems to have fixed it, thank you!

I am having some issues starting an RLCraft server on a minimal install of Debian 12. I have Java installed and I'm able to start the vanilla Minecraft server jar no problem and people can join and play without any issues, as soon as I try to create a new directory with the Forge jar the initial install with the INSTALLER jar works when I use the java command with the --installServer flag, but as soon as I try to start the server using the forge jar that is NOT labelled with installer I get the following error: A problem occurred running the Server launcher.java.lang.reflect.InvocationTargetException at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:77) at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.base/java.lang.reflect.Method.invoke(Method.java:569) at net.minecraftforge.fml.relauncher.ServerLaunchWrapper.run(ServerLaunchWrapper.java:70) at net.minecraftforge.fml.relauncher.ServerLaunchWrapper.main(ServerLaunchWrapper.java:34) Caused by: java.lang.ClassCastException: class jdk.internal.loader.ClassLoaders$AppClassLoader cannot be cast to class java.net.URLClassLoader (jdk.internal.loader.ClassLoaders$AppClassLoader and java.net.URLClassLoader are in module java.base of loader 'bootstrap') at net.minecraft.launchwrapper.Launch.<init>(Launch.java:34) at net.minecraft.launchwrapper.Launch.main(Launch.java:28) ... 6 more I have tried using newer versions of Java directly from Oracle as well. Has anybody been successful in starting and running a RLCraft server from the terminal on a Linux machine? I cannot figure out why it doesn't want to work but the vanilla jar works without issue. Thank you in advance!