McMyAdmin won't run Forge 12.18.3.2477

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  • Last Post 14 January 2020
remfy posted this 12 January 2020

I am trying to set up a SkyFactory 3 server for me and some friends via McMyAdmin but it won't work. The original plan was to use MineOS but I couldn't log in as a root user so I can't get it to work either.

Every time the server attempts to boot it gives an error. The error looks like this:

A problem occured 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/jfk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
          at java.base/java.lang.reflect.Method.invoke(Method.java:566)
          at net.minecraftforge.fml.relauncher.ServerLaunchWrapper.run(ServerLaunchWrapper.java:62)
          at net.minecraftforge.fml.relauncher.ServerLaunchWrapper.main(ServerLaunchWrapper.java:31)
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)

I have tried as much troubleshooting as I could find and do on my own as I am not the slightest bit capable of understanding or writing code, even less in Java.

Thanks in advance!

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Mike posted this 12 January 2020

Do you have Java 8 64-bit installed?

remfy posted this 12 January 2020

Yes, I do have Java 8 64-bit installed.

remfy posted this 14 January 2020

*Edit, for more clarification, it is running on Linux Mint 19

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