Issue using MODPACK_PLATFORM: AUTO_CURSEFORGE with MODRINTH_DOWNLOAD_DEPENDENCIES: required

[LeFauxMatt]

Describe the problem

When using MODPACK_PLATFORM to install a base modpack, and CURSEFORGE_FILES MODRINTH_PROJECTS to install one or more additional mods, the container will automatically update any mod from the modpack which are not part of CURSEFORGE_FILES/CF_SLUG MODRINTH_PROJECTS.

The expected behavior is that only mods in CURSEFORGE_FILES MODRINTH_PROJECTS should possibly update, as changing the modpack's mod versions can possibly cause issues for clients who are joining with only the modpack installed.

Container definition

services:
  mc:
    container_name: atm10-dev
    image: itzg/minecraft-server:java25-graalvm
    restart: unless-stopped
    stop_grace_period: 60s
    user: ${UID}:${GID}
    tty: true
    stdin_open: true
    depends_on:
      - nginx
      - db
    networks:
      default:
      router:
        aliases:
          - atm10-dev
    ports:
      - name: simplevoicechat
        target: 24455
        published: 24455
        protocol: udp
    volumes:
      - type: bind
        source: /opt/minecraft/servers/atm10-dev
        target: /data
      - type: bind
        source: ../../resources/atm10/config
        target: /config
        read_only: true
      - type: bind
        source: ../../resources/atm10/extra_files
        target: /extra_files
        read_only: true
    env_file:
      - path: ./.env
        required: true
    environment:
      MODPACK_PLATFORM: AUTO_CURSEFORGE
      CF_SLUG: all-the-mods-10
      CF_FILENAME_MATCHER: 5.4
      MODE: creative
      SEED: m0DKZe6vTUeHlG1q
      MEMORY: 8G
      USE_MEOWICE_FLAGS: "true"
      USE_MEOWICE_GRAALVM_FLAGS: "true"
      MOTD: |
        Running %MODPACK_NAME% version %env:MODPACK_VERSION%
      RCON_CMDS_STARTUP: |
        gamerule doFireTick false
        gamerule playersSleepingPercentage 0
      RCON_CMDS_FIRST_CONNECT: |-
        chunky pause
      RCON_CMDS_LAST_DISCONNECT: |-
        chunky continue
      SYNC_SKIP_NEWER_IN_DESTINATION: "false"
      CURSEFORGE_FILES: "@/extra_files/curseforge-mods.txt"
      MODRINTH_PROJECTS: "@/extra_files/modrinth-mods.txt"
      MODRINTH_DOWNLOAD_DEPENDENCIES: required
      APPLY_EXTRA_FILES: |
        bluemap</extra_files/bluemap/
        kubejs</extra_files/kubejs/
    labels:
      mc-router.host: atm10-dev.redacted
      mc-router.network: minecraft-shared_default

Container logs

[I] > docker container logs atm10 | head -n 100
[init] Running as uid=999 gid=987 with /data as 'drwxrwsr-x 25 999 987 4096 Jan  2 12:21 /data'
[init] Image info: buildtime=2025-12-31T22:39:10.822Z,version=java21-graalvm,revision=c9094063d344fa38a97223e7ceafe005577865bb
[init] Starting RCON commands
[init] Rcon cmds functionality enabled
[mc-image-helper] 14:42:43.630 INFO  : Requested CurseForge modpack All the Mods 10-5.4 is already installed for All the Mods 10 - ATM10
[mc-image-helper] 14:42:43.648 INFO  : NeoForge version 21.1.215 for minecraft version 1.21.1 is already installed
[mc-image-helper] 14:42:47.363 INFO  : Downloaded /data/mods/create-1.21.1-6.0.9.jar
[mc-image-helper] 14:42:48.413 INFO  : Removing old file mods/create-1.21.1-6.0.8.jar
[mc-image-helper] 14:42:48.414 INFO  : Removing old file mods/DistantHorizons-2.4.5-b-1.21.1-fabric-neoforge.jar
[init] Copying any mods from /mods to /data/mods
[init] Copying any configs from /config to /data/config
[mc-image-helper] 14:42:50.969 INFO  : Interpolating /config/bluemap/storages/sql.conf -> /data/config/bluemap/storages/sql.conf
[mc-image-helper] 14:42:50.972 INFO  : Interpolating /config/simple-discord-link/simple-discord-compat.toml -> /data/config/simple-discord-link/simple-discord-compat.toml
[mc-image-helper] 14:42:50.972 INFO  : Interpolating /config/simple-discord-link/simple-discord-link.toml -> /data/config/simple-discord-link/simple-discord-link.toml
[mc-image-helper] 14:42:50.976 INFO  : Interpolating /config/logbegone.json -> /data/config/logbegone.json
[mc-image-helper] 14:42:50.976 INFO  : Interpolating /config/ftbchunksbluemap-common.toml -> /data/config/ftbchunksbluemap-common.toml
[mc-image-helper] 14:42:50.977 INFO  : Interpolating /config/tectonic.json -> /data/config/tectonic.json

[itzg]

You need to ensure you're not declaring duplicate mods in CURSEFORGE_FILES that are also in the modpack. Your logs show that the modpack processing wasn't touched since it was already installed.

Please provide contents of curseforge-mods.txt and I can try to identify further for you.

[LeFauxMatt]

Here are the entire contents of curseforge-mods.txt:

ftb-chunks-for-bluemap

My entire stack is all on source control, here:

https://github.com/PufferchicksMC/Resources

[LeFauxMatt]

Update - the issue is not what I thought. I removed CURSEFORGE_FILES from my docker compose and manually removed Create 6.0.9, but it's still reappearing when taking the container down and then back up again.

Before restart:

[I] > ls | grep create-
 create-1.21.1-6.0.8.jarcreate-1.21.1-6.0.8.jar
 create-dragons-plus-1.8.5.jarcreate-dragons-plus-1.8.5.jar
 create-enchantment-industry-2.2.5b.jarcreate-enchantment-industry-2.2.5b.jar
 create-1.0.2a-neoforge-mc1.21.jarrechiseledcreate-1.0.2a-neoforge-mc1.21.jar

Restart:

[I] > docker container logs atm10 | grep create-
[mc-image-helper] 15:04:48.925 WARN  : Re-installing due to missing files from modpack: [mods/create-1.21.1-6.0.8.jar]
[mc-image-helper] 15:05:01.774 INFO  : Mod file ./mods/create-enchantment-industry-2.2.5b.jar already exists
[mc-image-helper] 15:05:01.870 INFO  : Mod file ./mods/create-dragons-plus-1.8.5.jar already exists
[mc-image-helper] 15:05:02.585 INFO  : Downloaded mod file mods/create-1.21.1-6.0.8.jar
[mc-image-helper] 15:05:18.311 INFO  : Mod file ./mods/rechiseledcreate-1.0.2a-neoforge-mc1.21.jar already exists
[15:05:36] [main/INFO]: Found mod file "create-1.21.1-6.0.8.jar" [locator: {mods folder locator at /data/mods}, reader: mod manifest]
[15:05:36] [main/INFO]: Found mod file "create-1.21.1-6.0.9.jar" [locator: {mods folder locator at /data/mods}, reader: mod manifest]
[15:05:36] [main/INFO]: Found mod file "create-dragons-plus-1.8.5.jar" [locator: {mods folder locator at /data/mods}, reader: mod manifest]
[15:05:36] [main/INFO]: Found mod file "create-enchantment-industry-2.2.5b.jar" [locator: {mods folder locator at /data/mods}, reader: mod manifest]
[15:05:36] [main/INFO]: Found mod file "rechiseledcreate-1.0.2a-neoforge-mc1.21.jar" [locator: {mods folder locator at /data/mods}, reader: mod manifest]
[15:05:36] [main/WARN]: Attempted to select two dependency jars from JarJar which have the same identification: Nested Mod File  in Mod File: /data/mods/create-1.21.1-6.0.9.jar and Nested Mod File  in Mod File: /data/mods/ponderjs-neoforge-1.21.1-2.3.0.jar. Using Nested Mod File  in Mod File: /data/mods/create-1.21.1-6.0.9.jar
[15:05:36] [main/INFO]: Found mod file "ponder-neoforge-1.0.81+mc1.21.1.jar" [parent: create-1.21.1-6.0.9.jar, locator: jarinjar, reader: mod manifest]
[15:05:36] [main/INFO]: Found mod file "conditional-mixin-neoforge-0.6.4.jar" [parent: create-dragons-plus-1.8.5.jar, locator: jarinjar, reader: mod manifest]
[15:05:36] [main/INFO]: Found gamelibrary file "Registrate-MC1.21-1.3.0+67.jar" [parent: create-1.21.1-6.0.9.jar, locator: jarinjar, reader: mod manifest]
[15:05:36] [main/INFO]: Found mod file "flywheel-neoforge-1.21.1-1.0.6.jar" [parent: create-1.21.1-6.0.9.jar, locator: jarinjar, reader: mod manifest]
[mc-image-helper] 15:17:28.243 INFO  : Downloaded /data/mods/create-1.21.1-6.0.9.jar
[15:17:35] [main/INFO]: Found mod file "create-1.21.1-6.0.8.jar" [locator: {mods folder locator at /data/mods}, reader: mod manifest]
[15:17:35] [main/INFO]: Found mod file "create-1.21.1-6.0.9.jar" [locator: {mods folder locator at /data/mods}, reader: mod manifest]

It's automatically downloading 6.0.9 even though the correct version of Create is already installed.

[itzg]

I'll have to revisit the example since it had been working fine

https://github.com/itzg/docker-minecraft-server/blob/master/examples/auto-curseforge/atm10/docker-compose.yml

I wonder if it's now one of these cases

https://docker-minecraft-server.readthedocs.io/en/latest/types-and-platforms/mod-platforms/auto-curseforge/#ignore-missing-files

[itzg]

...and where is 6.0.9 coming from since it's not mentioned in the modpack install logs at the start?

[itzg]

...oh maybe as a dependency of the create-related mods listed in

https://github.com/PufferchicksMC/Resources/blob/main/atm10/extra_files/modrinth-mods.txt

[LeFauxMatt]

I'm using version of modrinth mods that initially were made for Create 6.0.8, but perhaps one of them updated their dependency.
Setting MODRINTH_DOWNLOAD_DEPENDENCIES back to default does appear to have resolved it for me. (except for the fact that I'll need to manually manage dependencies now)