Issue with curseforge modpack

[lozspagatee]

Im having trouble setting up this modpack called MC Eternal. Setting it up via the jar file is fine but i just cant get it to work with docker. Tried different java8 versions as well as using legacyjavafixer and modpack_start_script=false.

heres the link to the modpack:
https://www.curseforge.com/minecraft/modpacks/minecraft-eternal

this is the crash report it made:

java.lang.NoClassDefFoundError: net/minecraft/client/gui/GuiScreen
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Class.java:348)
at net.minecraftforge.fml.common.FMLModContainer.constructMod(FMLModContainer.java:539)
at sun.reflect.GeneratedMethodAccessor11.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at com.google.common.eventbus.Subscriber.invokeSubscriberMethod(Subscriber.java:91)
at com.google.common.eventbus.Subscriber$SynchronizedSubscriber.invokeSubscriberMethod(Subscriber.java:150)
at com.google.common.eventbus.Subscriber$1.run(Subscriber.java:76)
at com.google.common.util.concurrent.MoreExecutors$DirectExecutor.execute(MoreExecutors.java:399)
at com.google.common.eventbus.Subscriber.dispatchEvent(Subscriber.java:71)
at com.google.common.eventbus.Dispatcher$PerThreadQueuedDispatcher.dispatch(Dispatcher.java:116)
at com.google.common.eventbus.EventBus.post(EventBus.java:217)
at net.minecraftforge.fml.common.LoadController.sendEventToModContainer(LoadController.java:219)
at net.minecraftforge.fml.common.LoadController.propogateStateMessage(LoadController.java:197)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at com.google.common.eventbus.Subscriber.invokeSubscriberMethod(Subscriber.java:91)
at com.google.common.eventbus.Subscriber$SynchronizedSubscriber.invokeSubscriberMethod(Subscriber.java:150)
at com.google.common.eventbus.Subscriber$1.run(Subscriber.java:76)
at com.google.common.util.concurrent.MoreExecutors$DirectExecutor.execute(MoreExecutors.java:399)
at com.google.common.eventbus.Subscriber.dispatchEvent(Subscriber.java:71)
at com.google.common.eventbus.Dispatcher$PerThreadQueuedDispatcher.dispatch(Dispatcher.java:116)
at com.google.common.eventbus.EventBus.post(EventBus.java:217)
at net.minecraftforge.fml.common.LoadController.distributeStateMessage(LoadController.java:136)
at net.minecraftforge.fml.common.Loader.loadMods(Loader.java:595)
at net.minecraftforge.fml.server.FMLServerHandler.beginServerLoading(FMLServerHandler.java:98)
at net.minecraftforge.fml.common.FMLCommonHandler.onServerStart(FMLCommonHandler.java:333)
at net.minecraft.server.dedicated.DedicatedServer.init(DedicatedServer.java:125)
at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:486)
at java.lang.Thread.run(Thread.java:748)
Caused by: java.lang.ClassNotFoundException: net.minecraft.client.gui.GuiScreen
at net.minecraft.launchwrapper.LaunchClassLoader.findClass(LaunchClassLoader.java:191)
at java.lang.ClassLoader.loadClass(ClassLoader.java:418)
at java.lang.ClassLoader.loadClass(ClassLoader.java:351)
... 33 more
Caused by: net.minecraftforge.fml.common.asm.ASMTransformerWrapper$TransformerException: Exception in class transformer net.minecraftforge.fml.common.asm.transformers.SideTransformer@34b27915 from coremod FMLCorePlugin
at net.minecraftforge.fml.common.asm.ASMTransformerWrapper$TransformerWrapper.transform(ASMTransformerWrapper.java:260)
at net.minecraft.launchwrapper.LaunchClassLoader.runTransformers(LaunchClassLoader.java:279)
at net.minecraft.launchwrapper.LaunchClassLoader.findClass(LaunchClassLoader.java:176)
... 35 more
Caused by: java.lang.RuntimeException: Attempted to load class blk for invalid side SERVER
at net.minecraftforge.fml.common.asm.transformers.SideTransformer.transform(SideTransformer.java:62)
at net.minecraftforge.fml.common.asm.ASMTransformerWrapper$TransformerWrapper.transform(ASMTransformerWrapper.java:256)
... 37 more

[itzg]

Seems like a client mod needs to be excluded. Refer to that info further down in this section

https://github.com/itzg/docker-minecraft-server#auto-curseforge-management

[lozspagatee]

ok so i just have to exclude the client side mod via the json file. With over 200 mods, this is going to be a long and painful process to find the client mod. Is there a way to see what mods has already been marked as client sided? so that i can skip those when looking for the mod that needs to be manually excluded?

[itzg]

It probably won't be as daunting as it might seem. The default file listed there is applied along with the exclusions passed with CF_EXCLUDE_MODS. Be sure to set CF_FORCE_SYNCHRONIZE to "true" as you're iterations on those.

[lozspagatee]

i cant seem to find the cf-exclude-include json file in the data folder, do i need to create it or is it supposed to create one automatically? also for the force synchronize, to enable it i just have to add -e CF_FORCE_SYNCHRONIZE=true right? sorry for all the noob qns, im new to shell usage and only using it to set up minecraft servers for me and my friends to play.

[itzg]

Don't worry about the JSON file, in fact, I should probably flip the order of paragraphs there.

Instead just pass a comma separated list of mod project IDs to exclude described starting with this paragraph.

Yes, set those variables with the -e command line arguments.

[lozspagatee]

alright thanks, for now ill mark this as answered. Currently having another modpack running so ill do the excluding some other time thanks. when i eventually get it up and working, ill come back and provide a list of exclusions if anyone else wants to play mc eternal

[ThatWileyGuy]

FWIW, I got this to work by switching to the "old approach" to CurseForge mods. MC Eternal doesn't ship a list of mods to exclude on server, but it does ship a server mod file.
End result looks like this:

version: "3"

services:
  mc:
    image: itzg/minecraft-server:java8
    ports:
      - 25565:25565
    environment:
      MEMORY: "16G"
      VERSION: "1.12.2"
      EULA: "TRUE"
      TYPE: "CURSEFORGE"
      CF_SERVER_MOD: "/modpacks/MC_Eternal_1.6.1_Server.zip"
    tty: true
    stdin_open: true
    restart: unless-stopped
    volumes:
      - ./minecraft-data:/data
      - ./modpacks:/modpacks

[lozspagatee]

hey so i tried doing that but am getting the error "changing permissions ... operations not permitted" like in every line when launching. It was able to extract properly to the FeedTheBeast folder but unable to launch. My ACL permissions is set to full access to all groups but still does not work.

[lozspagatee]

Looks like itzg is in the process of adding the exclusions himself for mc eternal so i guess i will use auto_curseforge. Thanks for helping anyway appreciate it. Also thanks itzg for adding the exclusions too!

[itzg]

hey so i tried doing that but am getting the error "changing permissions ... operations not permitted" like in every line when launching

I think that ends up being SElinux or AppArmor applying constraints. If you're using one of those, there might even be container config to allow exceptions.