Startup Issue with Minecraft - can't run the server with mods

Technical Support
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1

System Information

Field Value
Operating System Linux - Debian GNU/Linux 12 on x86_64
Product AMP ‘Decadeus’ v2.4.7.0 (Mainline)
Virtualization Docker
Application Minecraft
Module MinecraftModule
Running in Container Yes
Current State Failed

Problem Description

Issue

when i add mods to the server it says that it crash in 5 seconds and demand to check minecraft files

Reproduction Steps

  • setup forge server
  • update
  • add mod
2

How are you adding the mods exactly?

3

i create a folder “mods” and drag the .jar file inside

4

You mean you dragged into AMPs file manager?

5

yes isn’t that what i am suppose to do?

6

It is I just wanted to know what steps you’ve taken. Does the console show any errors?

7

when i start it says this : A problem occurred running the Server launcher.java.lang.reflect.InvocationTargetException
at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:110)
at java.base/java.lang.reflect.Method.invoke(Method.java:577)
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.(Launch.java:34)
at net.minecraft.launchwrapper.Launch.main(Launch.java:28)
at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:104)
… 3 more

do you know what should i do or what i do wrong?

8

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