leetleek

Thank you so much, I don't know how I missed that.

Hello, Upon starting the Forge universal jar, I get the following message: 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:62) at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.base/java.lang.reflect.Method.invoke(Method.java:564) 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: java.base/jdk.internal.loader.ClassLoaders$AppClassLoader cannot be cast to java.base/java.net.URLClassLoader at net.minecraft.launchwrapper.Launch.<init>(Launch.java:34) at net.minecraft.launchwrapper.Launch.main(Launch.java:28) ... 6 more Here's what I have tried: minecraft_server.1.12.2.jar is present in the same directory as the Forge universal jar I did run minecraft_server.1.12.2.jar twice (first time to generate & accept EULA file), successfully Installed the latest default-jre and default-jdk packages from apt I am attempting to run Forge version 14.23.5.2768 for Minecraft 1.12.2, on Ubuntu 18.04 LTS. Any help is greatly appreciated.