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  1. Minecraft: Java Edition
  2. MC-206411

Minecraft server 1.16.4 unmodded Ticking World Exception crash

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    • Icon: Bug Bug
    • Resolution: Cannot Reproduce
    • None
    • 1.16.4
    • None
    • Windows 10
    • Unconfirmed
    • (Unassigned)

      My server crashed one time with the Ticking World Exception and now everytime I start it, it writes the exact same exception. Here's the crash report: 

       

      ---- Minecraft Crash Report -------- Minecraft Crash Report ----
      // Uh... Did I do that?

      Time: 11/23/20 5:15 PM
      Description: Exception ticking world

      java.util.ConcurrentModificationException at java.util.HashMap$HashIterator.nextNode(Unknown Source) at java.util.HashMap$KeyIterator.next(Unknown Source) at aag.a(SourceFile:1007) at brx.a(SourceFile:251) at brx.a(SourceFile:217) at btu.a(SourceFile:223) at btu.b(SourceFile:135) at ceg$a.b(SourceFile:878) at aag.a(SourceFile:522) at aae.a(SourceFile:390) at java.util.ArrayList.forEach(Unknown Source) at aae.p(SourceFile:368) at aae.a(SourceFile:337) at aag.a(SourceFile:353) at net.minecraft.server.MinecraftServer.b(SourceFile:871) at zg.b(SourceFile:312) at net.minecraft.server.MinecraftServer.a(SourceFile:811) at net.minecraft.server.MinecraftServer.w(SourceFile:670) at net.minecraft.server.MinecraftServer.a(SourceFile:257) at java.lang.Thread.run(Unknown Source)

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

      -- Head --
      Thread: Server threadStacktrace: at java.util.HashMap$HashIterator.nextNode(Unknown Source) at java.util.HashMap$KeyIterator.next(Unknown Source) at aag.a(SourceFile:1007) at brx.a(SourceFile:251) at brx.a(SourceFile:217) at btu.a(SourceFile:223) at btu.b(SourceFile:135) at ceg$a.b(SourceFile:878) at aag.a(SourceFile:522) at aae.a(SourceFile:390) at java.util.ArrayList.forEach(Unknown Source)
      at aae.p(SourceFile:368) at aae.a(SourceFile:337) at aag.a(SourceFile:353)

      -- Affected level - Details: All players: 1 total; [aah['Legendary234'/76, l='ServerLevel[Boi]', x=2022.50, y=71.00, z=5958.90]] Chunk stats: ServerChunkCache: 4579 Level dimension: minecraft:overworld Level spawn location: World: (-80,69,-32), Chunk: (at 0,4,0 in -5,-2; contains blocks -80,0,-32 to -65,255,-17), Region: (-1,-1; contains chunks -32,-32 to -1,-1, blocks -512,0,-512 to -1,255,-1)
      Level time: 6777106 game time, 10878749 day time
      Level name: Boi Level game mode: Game mode: survival (ID 0). Hardcore: false. Cheats: false Level weather: Rain time: 84519 (now: false), thunder time: 61968 (now: false) Known server brands: vanilla Level was modded: false Level storage version: 0x04ABD - AnvilStacktrace: at net.minecraft.server.MinecraftServer.b(SourceFile:871) at zg.b(SourceFile:312) at net.minecraft.server.MinecraftServer.a(SourceFile:811) at net.minecraft.server.MinecraftServer.w(SourceFile:670) at net.minecraft.server.MinecraftServer.a(SourceFile:257) at java.lang.Thread.run(Unknown Source)

      -- System Details -- Details: Minecraft Version: 1.16.4 Minecraft Version ID: 1.16.4 Operating System: Windows 10 (amd64) version 10.0 Java Version: 1.8.0_251, Oracle Corporation Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Oracle Corporation Memory: 10080429984 bytes (9613 MB) / 10356785152 bytes (9877 MB) up to 10356785152 bytes (9877 MB) CPUs: 6 JVM Flags: 2 total; -Xmx10000M -Xms10000M Player Count: 1 / 20; [aah['Legendary234'/76, l='ServerLevel[Boi]', x=2022.50, y=71.00, z=5958.90]] Data Packs: vanilla, file/Proxy creeper mobGriefing.zip (incompatible), file/afk display v1.1.0.zip (incompatible), file/anti creeper grief v1.1.0.zip (incompatible), file/anti enderman grief v1.1.0.zip (incompatible), file/anti ghast grief v1.1.0.zip (incompatible), file/armor statues v2.8.1.zip (incompatible), file/coordinates hud v1.2.0.zip (incompatible), file/custom nether portals v2.3.0.zip (incompatible), file/double shulker shells v1.3.0.zip (incompatible), file/dragon drops v1.3.0.zip (incompatible), file/durability ping v1.2.0.zip (incompatible), file/more mob heads v2.7.0.zip (incompatible), file/multiplayer sleep v1.1.0.zip (incompatible), file/nether portal coords v1.1.0.zip (incompatible), file/player head drops v1.1.0.zip (incompatible), file/spawning spheres v1.1.0.zip (incompatible), file/spectator conduit power v1.1.0.zip (incompatible), file/spectator night vision v1.1.0.zip (incompatible), file/wandering trades v1.4.0.zip (incompatible) Is Modded: Unknown (can't tell) Type: Dedicated Server (map_server.txt)

      Now, I searched for this at different places, but everywhere it said the mods were causing it, but I am not using mods. If someone knows what's happening here please help me!

      Edit: I have found the problem, apparently a villager(s) was why it was crashing. To fix this I moved the server world to singleplayer killed the villager(s) and moved the world back to the server file and it worked!

            Unassigned Unassigned
            Kaboka22 Botond Kalmár
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              Created:
              Updated:
              Resolved: