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Help with ubuntu server crashing when using mods
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American Shorthair posted this in #questions
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American ShorthairOP
I already made this post on reddit and got some help from TheVibeCurator, I'm posting it here so we can easily communicate as i wont be able to do anything else with the server till tomorrow. I will post the link to the reddit thread we were using to communicate and try solving the issue. the reddit thread will have the logs and and crash logs from the server.
reddit link: https://www.reddit.com/r/admincraft/comments/1pig1za/help_with_modded_ubuntu_server_crashing_on_startup
reddit link: https://www.reddit.com/r/admincraft/comments/1pig1za/help_with_modded_ubuntu_server_crashing_on_startup
@American Shorthair I already made this post on reddit and got some help from TheVibeCurator, I'm posting it here so we can easily communicate as i wont be able to do anything else with the server till tomorrow. I will post the link to the reddit thread we were using to communicate and try solving the issue. the reddit thread will have the logs and and crash logs from the server.
reddit link: https://www.reddit.com/r/admincraft/comments/1pig1za/help_with_modded_ubuntu_server_crashing_on_startup
reddit link: https://www.reddit.com/r/admincraft/comments/1pig1za/help_with_modded_ubuntu_server_crashing_on_startup
Asian black bear
Welcome to the Admincraft Discord, I'd be happy to helpMy colleagues and other members of the community here are also highly knowledgeable as well
@American Shorthair I already made this post on reddit and got some help from TheVibeCurator, I'm posting it here so we can easily communicate as i wont be able to do anything else with the server till tomorrow. I will post the link to the reddit thread we were using to communicate and try solving the issue. the reddit thread will have the logs and and crash logs from the server.
reddit link: https://www.reddit.com/r/admincraft/comments/1pig1za/help_with_modded_ubuntu_server_crashing_on_startup
reddit link: https://www.reddit.com/r/admincraft/comments/1pig1za/help_with_modded_ubuntu_server_crashing_on_startup
Brown bear
why did you install iris shaders on the server
pretty sure that log is old
reading the thread they went through server pack creator
can you send more latest crash logs and latest.log @American Shorthair ?
American ShorthairOP
those are most of the latest, we use curse forge when installing mods backs and donwlaoded the serverpack option forge has for All The Mods 9, so what ever is in there came with it when we installed it. I cant really do a whole lot rn as its on my buddies pc and hes at work and wont be back on till some time tomorrow morning
the most recent problem has been with us not being able to join due to mismatched mod list
Neither of us really know alot about modding, i kinda know the basics. but neiter of us really know anything about linux and ubuntu servers. its a learning experince for both of us. We have spent the last like three days trying to get this to work. last thing i was told ass to install all the mods that are on the mismatched mod list when it shows up and to delete CoreMod because its causing a issue some where
I dont think it is latest imo
but ill check it out more
but ill check it out more
oh
[09Dec2025 18:55:00.343] [main/ERROR] [net.minecraft.server.Main/FATAL]: Failed to start the minecraft server
net.minecraftforge.fml.LoadingFailedException: Loading errors encountered: [
Mekalus (Oculus) has class loading errors
§7org.spongepowered.asm.mixin.transformer.throwables.MixinTransformerError: An unexpected critical error was encountered
]
at net.minecraftforge.fml.ModLoader.gatherAndInitializeMods(ModLoader.java:177) ~[fmlcore-1.20.1-47.4.0.jar%23969!/:?]
oculus
American ShorthairOP
ive only got 2 logs from him right now and cant get the rest till tomorrow
are you SURE this is the server pack?
American ShorthairOP
yes
atm is not known for having bad server packs
American ShorthairOP
we used curseforge and installed the serverpack from curse forge
from the launcher?
American ShorthairOP
maybe cursforge is the issue?
@Tamz atm is not known for having bad server packs
Asian black bear
im downloading it myself rn to verify 
@Tamz from the launcher?
or website
American ShorthairOP
yah the curse forge pc app launcher
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