Immersive Engineering

Immersive Engineering

Mods
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[1.12.2] Dedicated server crash on world load: NoClassDefFoundError IICProxy

Brycey92 opened this issue ยท 3 comments

commented

Description of the issue:

My dedicated server crashes when it was loads the world. This happens every time I start the server, as far as I can tell. See the crashlog for details.

Crashlog:

crash-2020-01-18_13.56.16-server.txt

Versions & Modlist:

Forge 14.23.5.2838
Immersive Engineering 0.12 - 92
Immersive Cables 1.3.2
Immersive Petroleum 1.1.9
Industrial Wires 1.7-36

I do have SpongeForge installed, but as far as I could tell, it's not part of the cause of the crash. Let me know if I should test without it installed anyway.

commented

Thanks for the quick response! I'll look into both issues.

commented

Some mod is including classes from IE in their own file, which causes the crash. We can't really do anything about that. But something else is severely broken: this line in the crash report shows that it failed to load the classes for generating the modlist for the crash report as well.

commented

I unzipped every single mod I have, and none of them are including any files from IE.

I eventually deleted the iicproxies NBT array from the IE world save data, and received this even weirder crash report: https://gist.github.com/Brycey92/8ec6d328d0e618fecad62438e20b906e

What I did eventually discover was that downgrading the Sponge Player Analytics (aka Plan) plugin by one release from 5.0-build-367 to 5.0-build-335 solved the issues completely. I think their latest update introduced some weird issue with Java's classpath or something, causing a slew of seemingly unrelated errors. Without this bugged version of Plan, the generation of the modlist for crash reports works again too.