Description: Exception in server tick loop | Can someone help?

[Rustwatch]

Hello Guys,

I feel a bit dumb to write here but i am sitting 5 hours on that topic and cant solve it :/
I have following config

docker-compose.yml
version: "3"

services:
  minecraft-server:
    image: itzg/minecraft-server:java8-multiarch
    container_name: minecraft-server
    ports:
      - 42069:25565
    environment:
      SERVER_NAME: "DockItOn Minecraft"
      MOTD: "Its Free Real Estate"
      VERSION: "1.12.2"
      MODE: "survival"
      EULA: "TRUE"
      LEVEL_TYPE: "DEFAULT"
      ENABLE_RCON: "true"
      RCON_PORT: 28016
      SERVER_PORT: 25565
      ENABLE_WHITELIST: "true"
      WHITELIST: "${WHITELISTED_PLAYERS}"
      OPS: "${OPS_PLAYERS}"
      MAX_PLAYERS: 20
      ANNOUNCE_PLAYER_ACHIEVEMENTS: "false"
      REMOVE_OLD_MODS: "true"
      TYPE: "AUTO_CURSEFORGE"
      CF_API_KEY: "${CF_API_KEY}"
      CF_PAGE_URL: "https://www.curseforge.com/minecraft/modpacks/sevtech-ages"
      CF_SET_LEVEL_FROM: OVERRIDES
      user: "mcadm"
      MEMORY: "6G"
      restart: unless-stopped
      TZ: "Austria/Vienna"
      MODS_FILE: /extras/mods.txt
    volumes:
      - /usr/minecraft/data:/data
      - /usr/minecraft/mods.txt:/extras/mods.txt:ro
    logging:
      driver: "json-file"
      options:
        max-size: "2048m"

There were 3 warn messages that i need to download some mods sepperatly so i did that...

/usr/minecraft/mods.txt
https://www.curseforge.com/api/v1/mods/248039/files/3374256/download
https://www.curseforge.com/api/v1/mods/282077/files/2634217/download
https://www.curseforge.com/api/v1/mods/298965/files/3374254/download

But it seems like i always get the message

minecraft-server    | [21:03:02] [Server thread/INFO] [minecraft/DedicatedServer]: Loading properties
minecraft-server    | [21:03:02] [Server thread/INFO] [minecraft/DedicatedServer]: Default game type: SURVIVAL
minecraft-server    | [21:03:02] [Server thread/INFO] [minecraft/DedicatedServer]: Generating keypair
minecraft-server    | [21:03:02] [Server thread/INFO] [minecraft/DedicatedServer]: Starting Minecraft server on *:25565
minecraft-server    | [21:03:02] [Server thread/INFO] [minecraft/NetworkSystem]: Using epoll channel type
minecraft-server    | [21:03:03] [Server thread/WARN] [FML]: Potentially Dangerous alternative prefix `minecraft` for name `nether_brick_fence`, expected `netherex`. This could be a intended override, but in most cases indicates a broken mod.
minecraft-server    | [21:03:03] [Server thread/INFO] [FML]: Applying holder lookups
minecraft-server    | [21:03:03] [Server thread/INFO] [FML]: Holder lookups applied
minecraft-server    | [21:03:03] [Server thread/INFO] [FML]: Injecting itemstacks
minecraft-server    | [21:03:03] [Server thread/INFO] [FML]: Itemstack injection complete
minecraft-server    | [21:03:03] [Server thread/INFO] [FML]: Forge Mod Loader has successfully loaded 7 mods
minecraft-server    | [21:03:03] [Server thread/INFO] [minecraft/DedicatedServer]: Preparing level "cold"
minecraft-server    | [21:03:03] [Server thread/INFO] [FML]: Injecting existing registry data into this server instance
minecraft-server    | [21:03:03] [Forge Version Check/INFO] [forge.VersionCheck]: [forge] Found status: AHEAD Target: null
minecraft-server    | [21:03:03] [Server thread/INFO] [FML]: Applying holder lookups
minecraft-server    | [21:03:03] [Server thread/INFO] [FML]: Holder lookups applied
minecraft-server    | [21:03:04] [Server thread/INFO] [FML]: Loading dimension 0 (cold) (net.minecraft.server.dedicated.DedicatedServer@2f7235f9)
minecraft-server    | [21:03:04] [Server thread/INFO] [minecraft/AdvancementList]: Loaded 560 advancements
minecraft-server    | [21:03:04] [Server thread/INFO] [NetherEx]: Reading biome configs.
minecraft-server    | [21:03:04] [Server thread/INFO] [NetherEx]: Reading Pigtificate trade configs.
minecraft-server    | [21:03:04] [Server thread/INFO] [FML]: Loading dimension -1 (cold) (net.minecraft.server.dedicated.DedicatedServer@2f7235f9)
minecraft-server    | [21:03:04] [Server thread/INFO] [FML]: Loading dimension 1 (cold) (net.minecraft.server.dedicated.DedicatedServer@2f7235f9)
minecraft-server    | [21:03:04] [Server thread/INFO] [minecraft/MinecraftServer]: Preparing start region for level 0
minecraft-server    | [21:03:04] [Server thread/WARN] [minecraft/Chunk]: Could not set level chunk heightmap, array length is 0 instead of 256
minecraft-server    | [21:03:04] [Server thread/ERROR] [minecraft/MinecraftServer]: Encountered an unexpected exception
minecraft-server    | java.lang.IllegalArgumentException: ChunkNibbleArrays should be 2048 bytes not: 0
minecraft-server    |   at net.minecraft.world.chunk.NibbleArray.<init>(SourceFile:16) ~[axs.class:?]
minecraft-server    |   at net.minecraft.world.chunk.storage.AnvilChunkLoader.func_75823_a(AnvilChunkLoader.java:450) ~[aye.class:?]
minecraft-server    |   at net.minecraft.world.chunk.storage.AnvilChunkLoader.checkedReadChunkFromNBT__Async(AnvilChunkLoader.java:129) ~[aye.class:?]
minecraft-server    |   at net.minecraft.world.chunk.storage.AnvilChunkLoader.loadChunk__Async(AnvilChunkLoader.java:93) ~[aye.class:?]
minecraft-server    |   at net.minecraftforge.common.chunkio.ChunkIOProvider.run(ChunkIOProvider.java:70) ~[ChunkIOProvider.class:?]
minecraft-server    |   at net.minecraftforge.common.chunkio.ChunkIOExecutor.syncChunkLoad(ChunkIOExecutor.java:92) ~[ChunkIOExecutor.class:?]
minecraft-server    |   at net.minecraft.world.gen.ChunkProviderServer.loadChunk(ChunkProviderServer.java:118) ~[on.class:?]
minecraft-server    |   at net.minecraft.world.gen.ChunkProviderServer.func_186028_c(ChunkProviderServer.java:89) ~[on.class:?]
minecraft-server    |   at net.minecraft.world.gen.ChunkProviderServer.func_186025_d(ChunkProviderServer.java:135) ~[on.class:?]
minecraft-server    |   at net.minecraft.server.MinecraftServer.func_71222_d(MinecraftServer.java:344) ~[MinecraftServer.class:?]
minecraft-server    |   at net.minecraft.server.MinecraftServer.func_71247_a(MinecraftServer.java:314) ~[MinecraftServer.class:?]
minecraft-server    |   at net.minecraft.server.dedicated.DedicatedServer.func_71197_b(DedicatedServer.java:270) ~[nz.class:?]
minecraft-server    |   at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:486) [MinecraftServer.class:?]
minecraft-server    |   at java.lang.Thread.run(Thread.java:748) [?:1.8.0_312]
minecraft-server    | [21:03:04] [Server thread/ERROR] [minecraft/MinecraftServer]: This crash report has been saved to: /data/./crash-reports/crash-2023-04-25_21.03.04-server.txt

/data/./crash-reports/crash-2023-04-25_21.03.04-server.txt

---- Minecraft Crash Report ----
// Surprise! Haha. Well, this is awkward.

Time: 4/25/23 9:03 PM
Description: Exception in server tick loop

java.lang.IllegalArgumentException: ChunkNibbleArrays should be 2048 bytes not: 0
        at net.minecraft.world.chunk.NibbleArray.<init>(SourceFile:16)
        at net.minecraft.world.chunk.storage.AnvilChunkLoader.func_75823_a(AnvilChunkLoader.java:450)
        at net.minecraft.world.chunk.storage.AnvilChunkLoader.checkedReadChunkFromNBT__Async(AnvilChunkLoader.java:129)
        at net.minecraft.world.chunk.storage.AnvilChunkLoader.loadChunk__Async(AnvilChunkLoader.java:93)
        at net.minecraftforge.common.chunkio.ChunkIOProvider.run(ChunkIOProvider.java:70)
        at net.minecraftforge.common.chunkio.ChunkIOExecutor.syncChunkLoad(ChunkIOExecutor.java:92)
        at net.minecraft.world.gen.ChunkProviderServer.loadChunk(ChunkProviderServer.java:118)
        at net.minecraft.world.gen.ChunkProviderServer.func_186028_c(ChunkProviderServer.java:89)
        at net.minecraft.world.gen.ChunkProviderServer.func_186025_d(ChunkProviderServer.java:135)
        at net.minecraft.server.MinecraftServer.func_71222_d(MinecraftServer.java:344)
        at net.minecraft.server.MinecraftServer.func_71247_a(MinecraftServer.java:314)
        at net.minecraft.server.dedicated.DedicatedServer.func_71197_b(DedicatedServer.java:270)
        at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:486)
        at java.lang.Thread.run(Thread.java:748)


A detailed walkthrough of the error, its code path and all known details is as follows:
---------------------------------------------------------------------------------------

-- System Details --
Details:
        Minecraft Version: 1.12.2
        Operating System: Linux (amd64) version 6.2.12-300.fc38.x86_64
        Java Version: 1.8.0_312, Temurin
        Java VM Version: OpenJDK 64-Bit Server VM (mixed mode), Temurin
        Memory: 5049649312 bytes (4815 MB) / 6174015488 bytes (5888 MB) up to 6174015488 bytes (5888 MB)
        JVM Flags: 2 total; -Xmx6G -Xms6G
        IntCache: cache: 0, tcache: 0, allocated: 0, tallocated: 0
        FML: MCP 9.42 Powered by Forge 14.23.5.2860 7 mods loaded, 7 mods active
        States: 'U' = Unloaded 'L' = Loaded 'C' = Constructed 'H' = Pre-initialized 'I' = Initialized 'J' = Post-initialized 'A' = Available 'D' = Disabled 'E' = Errored

        | State  | ID                | Version      | Source                                  | Signature                                |
        |:------ |:----------------- |:------------ |:--------------------------------------- |:---------------------------------------- |
        | LCHIJA | minecraft         | 1.12.2       | minecraft.jar                           | None                                     |
        | LCHIJA | mcp               | 9.42         | minecraft.jar                           | None                                     |
        | LCHIJA | FML               | 8.0.99.99    | forge-1.12.2-14.23.5.2860.jar           | e3c3d50c7c986df74c645c0ac54639741c90a557 |
        | LCHIJA | forge             | 14.23.5.2860 | forge-1.12.2-14.23.5.2860.jar           | e3c3d50c7c986df74c645c0ac54639741c90a557 |
        | LCHIJA | ferdinandsflowers | 1.10.4.1     | Ferdinand's+Flowers-1.12.x-1.10.4.1.jar | None                                     |
        | LCHIJA | libraryex         | 1.2.2        | LibraryEx-1.12.2-1.2.2.jar              | None                                     |
        | LCHIJA | netherex          | 2.2.5        | NetherEx-1.12.2-2.2.5.jar               | None                                     |

        Loaded coremods (and transformers):
        Profiler Position: N/A (disabled)
        Player Count: 0 / 20; []
        Is Modded: Definitely; Server brand changed to 'fml,forge'

so my question is... Did someone from the community also get that kind of error. I found some blogs were the person which faced the error said its because of the version.. Its the first time setting up a modded minecraft server for me.

Best Regards,
Rust

[itzg]

I wonder if there's something wrong with the world data provided by the modpack overrides since this seems to be the error that led to the crash:

java.lang.IllegalArgumentException: ChunkNibbleArrays should be 2048 bytes not: 0

[itzg]

Found this

https://shockbyte.com/billing/knowledgebase/110/javalangIllegalArgumentException-ChunkNibbleArrays-should-be-2048-bytes-not-0.html

I'm not sure if generating new world data is viable option, but might be worth trying temporarily if only to narrow down the problem.

[Rustwatch]

I wonder if there's something wrong with the world data provided by the modpack overrides since this seems to be the error that led to the crash:

java.lang.IllegalArgumentException: ChunkNibbleArrays should be 2048 bytes not: 0

Hey @itzg

I found the mistake :) it sat 20cm away from the Monitor and is currently writing a github message aka i was the error.

I created a test Server to confirm that the Container and the deploy-compose works as described. And it worked. But i still cant get the User ID right. But i think i will find a solution when digging deeper into your documentation.

Now my mistake...
I thought when i delete the TestServer Container the files get delted too.... which wasnt the case so the World had the version 1.17.1 and i Tried to Load 1.12.1 into it....

Solution:
I deleted the /usr/minecraft/data folder. And tried again to start. It worked!!

Thank you for your quick reaction!!

Best Regards,
Rust

Ps:
Sorry if there are typos my autocorrect tries really hard to write in german and i am currently on my mobile phone...

[itzg]

Glad to hear it was a simple and logical issue in the end.