Startup Issue with Minecraft - Major server issues

System Information

Field Value
Operating System Linux - Debian GNU/Linux 11 on x86_64
Product AMP ‘Decadeus’ v2.4.6.4 (Mainline)
Virtualization QEMU_KVM
Application Minecraft
Module MinecraftModule
Running in Container No
Current State Failed

Problem Description


Every time I switch the Java I get different error codes and I cant figure out how to start the server

Reproduction Steps

  • I added Mods (better Mc modpack)
  • I tried switching the java to fix it
  • I have forge 1.16.5 installed
    Error code
    Exception in thread “main” java.lang.IllegalAccessError: class cpw.mods.modlauncher.SecureJarHandler (in unnamed module @0x2a79781f) cannot access class (in module java.base) because module java.base does not export to unnamed module @0x2a79781f
    at cpw.mods.modlauncher.SecureJarHandler.lambda$static$1(
    at cpw.mods.modlauncher.api.LamdbaExceptionUtils.uncheck(
    at cpw.mods.modlauncher.SecureJarHandler.(
    at cpw.mods.modlauncher.Launcher.lambda$new$6(
    at java.base/java.util.concurrent.ConcurrentHashMap.computeIfAbsent(
    at cpw.mods.modlauncher.api.TypesafeMap.computeIfAbsent(
    at cpw.mods.modlauncher.api.TypesafeMap.computeIfAbsent(
    at cpw.mods.modlauncher.Environment.computePropertyIfAbsent(
    at cpw.mods.modlauncher.Launcher.(
    at cpw.mods.modlauncher.Launcher.main(
    at net.minecraftforge.server.ServerMain$Runner.runLauncher(
    at net.minecraftforge.server.ServerMain$Runner.access$100(
    at net.minecraftforge.server.ServerMain.main(

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