System Information
| Field | Value |
|---|---|
| Operating System | Linux - Ubuntu 24.04.4 on x86_64 |
| Product | AMP ‘Deimos’ v2.7.2.6 (Mainline) |
| Virtualization | None |
| Application | Minecraft |
| Module | MinecraftModule |
| Running in Container | No |
| Current State | Failed |
Problem Description
Issue
I recently updated my Minecraft Java instance from 1.21.11 to 26.1.2. However, when i click start my Minecraft server wont start. AMP Tells me that AMP is not at fault and that i should check the console. This is the error in the console:
Uncaught exception in thread “main”
java.lang.RuntimeException: An exception occurred when launching the server!
Caused by: java.lang.RuntimeException: Error invoking MC server bundler: java.lang.UnsupportedClassVersionError: net/minecraft/bundler/Main has been compiled by a more recent version of the Java Runtime (class file version 69.0), this version of the Java Runtime only recognizes class file versions up to 65.0
Reproduction Steps
- updated Minecraft Java edition from 1.21.11 to 26.1.2
- ran the instance
- opened the instence
- clicked “start” to start the Minecraft sever
- server wont start