Troubleshooting

Problem:

launchClient fails with error:

Unable to launch java.lang.reflect.InvocationTargetException .. .. at GradleStart.main(Unknown Source) [start/:?] Caused by: java.lang.UnsatisfiedLinkError: liblwjgl.so: wrong ELF class: ELFCLASS32 (Possible cause: architecture word width mismatch)

Solution:

If you are trying to run Minecraft on a machine with no desktop environment installed then you will get this error. For example if you are SSH-ing into a cluster machine. The best approach is to run Minecraft on a different machine, one with a desktop environment installed. Make a note of its IP address and use the version of AgentHost::startMission that takes a ClientPool. See Python_Examples/MultiMaze.py for an example of that.

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