Server Crash Due to Missing Dependency When Using CurseForge Modpack Reclamation

[Knufle]

Describe the problem

I am attempting to run a Minecraft server using the itzg/minecraft-server:java21-alpine container with the CurseForge modpack "Reclamation: Reclaim the World" (slug: reclamation-reclaim-the-world) for Minecraft version 1.20.1. However, the server crashes during startup due to a missing dependency.

The error indicates that the reclamation_util mod requires moreoverlays but this dependency is not being installed automatically by the container's CurseForge integration.

Container definition

services:
  minecraft_reclamation_modpack:
    image: itzg/minecraft-server:java21-alpine
    tty: true
    stdin_open: true
    ports:
      - "25565:25565"
    environment:
      EULA: "TRUE"
      TYPE: "AUTO_CURSEFORGE"
      CF_API_KEY: "{{myApiKey}}"
      CF_SLUG: "reclamation-reclaim-the-world"
      VERSION: "1.20.1"
      ICON: "https://i.imgur.com/image.png"
      OVERRIDE_ICON: "TRUE"
    volumes:
      - mc_data:/data
    restart: unless-stopped

volumes:
  mc_data:

Container logs (key error)

[01:14:27] [main/ERROR] [ne.mi.fm.lo.ModSorter/LOADING]: Missing or unsupported mandatory dependencies:
	Mod ID: 'moreoverlays', Requested by: 'reclamation_util', Expected range: '*', Actual version: '[MISSING]'

[01:14:34] [main/FATAL] [ne.mi.fm.ModLoader/CORE]: Error during pre-loading phase
net.minecraftforge.fml.ModLoadingException: Mod §ereclamation_util§r requires §6moreoverlays§r §oany§r
§7Currently, §6moreoverlays§r§7 is §o§nnot installed

Environment details

• Docker Image: itzg/minecraft-server:java21-alpine
• Minecraft Version: 1.20.1
• Forge Version: 47.4.0
• Java Version: 21.0.8 (Eclipse Adoptium)
• Modpack: Reclamation: Reclaim the World (CurseForge)
• Container Type: AUTO_CURSEFORGE

Expected behavior

The container should automatically resolve and install all required dependencies for the modpack, including the moreoverlays mod that reclamation_util depends on.

I tried adding moreoverlays or more-overlays to both the CF_EXCLUDE_MODS and CF_FORCE_INCLUDE_MODS but unfortunately none of that worked.

[itzg]

moreoverlays sounds like a client mod and shouldn't be included by the server. Perhaps reclamation util needs to be excluded.

[Knufle]

I had tried adding reclamation_util to both CF_EXCLUDE_MODS and CF_FORCE_INCLUDE_MODS with no success before, but maybe that's because reclamation_util doesn't seem to be hosted on CurseForge?

Anyways, I just added it to CF_OVERRIDES_EXCLUSIONS instead, with a value of mods/reclamation_util*.jar and now the server does start, even though I get some errors here and there in the logs.

I do get this error in the UI of my Minecraft client now, which I didn't get when just running the server files as a dedicated server locally before: Incompatible FML modded server. Server mod list is not compatible.

But as I mentioned, I'm still able to join.