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My minecraft forge server crashes when I enter, dont know how to fix it

oberonsucks

By oberonsucks
in Support & Bug Reports

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oberonsucks Tree Puncher

oberonsucks

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Posted (edited)

Heres one of the crash reports :

 

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

Time: 03/06/21 17:14
Description: Exception ticking world

java.util.ConcurrentModificationException: null
    at java.util.HashMap$HashIterator.nextNode(Unknown Source) ~[?:1.8.0_291] {}
    at java.util.HashMap$KeyIterator.next(Unknown Source) ~[?:1.8.0_291] {}
    at net.minecraft.world.server.ServerWorld.func_184138_a(ServerWorld.java:1017) ~[?:?] {re:mixin,pl:accesstransformer:B,pl:runtimedistcleaner:A,re:classloading,pl:accesstransformer:B,pl:mixin:APP:abnormals_core.mixins.json:ServerWorldMixin,pl:mixin:APP:endergetic.mixins.json:ServerWorldMixin,pl:mixin:A,pl:runtimedistcleaner:A}
    at net.minecraft.world.World.markAndNotifyBlock(World.java:232) ~[?:?] {re:mixin,pl:accesstransformer:B,pl:runtimedistcleaner:A,re:classloading,pl:accesstransformer:B,pl:mixin:APP:sereneseasons.mixins.json:MixinWorld,pl:mixin:A,pl:runtimedistcleaner:A}
    at net.minecraft.world.World.func_241211_a_(World.java:212) ~[?:?] {re:mixin,pl:accesstransformer:B,pl:runtimedistcleaner:A,re:classloading,pl:accesstransformer:B,pl:mixin:APP:sereneseasons.mixins.json:MixinWorld,pl:mixin:A,pl:runtimedistcleaner:A}
    at net.minecraft.world.World.func_180501_a(World.java:176) ~[?:?] {re:mixin,pl:accesstransformer:B,pl:runtimedistcleaner:A,re:classloading,pl:accesstransformer:B,pl:mixin:APP:sereneseasons.mixins.json:MixinWorld,pl:mixin:A,pl:runtimedistcleaner:A}
    at com.ferreusveritas.dynamictrees.blocks.leaves.DynamicLeavesBlock.age(DynamicLeavesBlock.java:194) ~[dynamictrees:1.16.5-0.10.0-Beta12] {re:classloading}
    at com.ferreusveritas.dynamictrees.blocks.leaves.DynamicLeavesBlock.doTick(DynamicLeavesBlock.java:160) ~[dynamictrees:1.16.5-0.10.0-Beta12] {re:classloading}
    at com.ferreusveritas.dynamictrees.blocks.leaves.DynamicLeavesBlock.func_225542_b_(DynamicLeavesBlock.java:137) ~[dynamictrees:1.16.5-0.10.0-Beta12] {re:classloading}
    at net.minecraft.block.AbstractBlock$AbstractBlockState.func_227034_b_(AbstractBlock.java:624) ~[?:?] {re:mixin,pl:runtimedistcleaner:A,re:classloading,pl:runtimedistcleaner:A}
    at net.minecraft.world.server.ServerWorld.func_217441_a(ServerWorld.java:508) ~[?:?] {re:mixin,pl:accesstransformer:B,pl:runtimedistcleaner:A,re:classloading,pl:accesstransformer:B,pl:mixin:APP:abnormals_core.mixins.json:ServerWorldMixin,pl:mixin:APP:endergetic.mixins.json:ServerWorldMixin,pl:mixin:A,pl:runtimedistcleaner:A}
    at net.minecraft.world.server.ServerChunkProvider.func_241099_a_(ServerChunkProvider.java:362) ~[?:?] {re:mixin,pl:accesstransformer:B,pl:runtimedistcleaner:A,re:classloading,pl:accesstransformer:B,pl:runtimedistcleaner:A}
    at java.util.ArrayList.forEach(Unknown Source) ~[?:1.8.0_291] {}
    at net.minecraft.world.server.ServerChunkProvider.func_217220_m(ServerChunkProvider.java:346) ~[?:?] {re:mixin,pl:accesstransformer:B,pl:runtimedistcleaner:A,re:classloading,pl:accesstransformer:B,pl:runtimedistcleaner:A}
    at net.minecraft.world.server.ServerChunkProvider.func_217207_a(ServerChunkProvider.java:321) ~[?:?] {re:mixin,pl:accesstransformer:B,pl:runtimedistcleaner:A,re:classloading,pl:accesstransformer:B,pl:runtimedistcleaner:A}
    at net.minecraft.world.server.ServerWorld.func_72835_b(ServerWorld.java:333) ~[?:?] {re:mixin,pl:accesstransformer:B,pl:runtimedistcleaner:A,re:classloading,pl:accesstransformer:B,pl:mixin:APP:abnormals_core.mixins.json:ServerWorldMixin,pl:mixin:APP:endergetic.mixins.json:ServerWorldMixin,pl:mixin:A,pl:runtimedistcleaner:A}
    at net.minecraft.server.MinecraftServer.func_71190_q(MinecraftServer.java:851) ~[?:?] {re:mixin,pl:accesstransformer:B,pl:runtimedistcleaner:A,re:classloading,pl:accesstransformer:B,pl:runtimedistcleaner:A}
    at net.minecraft.server.dedicated.DedicatedServer.func_71190_q(DedicatedServer.java:291) ~[?:?] {re:classloading,pl:accesstransformer:B}
    at net.minecraft.server.MinecraftServer.func_71217_p(MinecraftServer.java:787) ~[?:?] {re:mixin,pl:accesstransformer:B,pl:runtimedistcleaner:A,re:classloading,pl:accesstransformer:B,pl:runtimedistcleaner:A}
    at net.minecraft.server.MinecraftServer.func_240802_v_(MinecraftServer.java:642) ~[?:?] {re:mixin,pl:accesstransformer:B,pl:runtimedistcleaner:A,re:classloading,pl:accesstransformer:B,pl:runtimedistcleaner:A}
    at net.minecraft.server.MinecraftServer.func_240783_a_(MinecraftServer.java:232) ~[?:?] {re:mixin,pl:accesstransformer:B,pl:runtimedistcleaner:A,re:classloading,pl:accesstransformer:B,pl:runtimedistcleaner:A}
    at java.lang.Thread.run(Unknown Source) [?:1.8.0_291] {}


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

-- Head --
Thread: Server thread
Stacktrace:
    at java.util.HashMap$HashIterator.nextNode(Unknown Source) ~[?:1.8.0_291] {}
    at java.util.HashMap$KeyIterator.next(Unknown Source) ~[?:1.8.0_291] {}
    at net.minecraft.world.server.ServerWorld.func_184138_a(ServerWorld.java:1017) ~[?:?] {re:mixin,pl:accesstransformer:B,pl:runtimedistcleaner:A,re:classloading,pl:accesstransformer:B,pl:mixin:APP:abnormals_core.mixins.json:ServerWorldMixin,pl:mixin:APP:endergetic.mixins.json:ServerWorldMixin,pl:mixin:A,pl:runtimedistcleaner:A}
    at net.minecraft.world.World.markAndNotifyBlock(World.java:232) ~[?:?] {re:mixin,pl:accesstransformer:B,pl:runtimedistcleaner:A,re:classloading,pl:accesstransformer:B,pl:mixin:APP:sereneseasons.mixins.json:MixinWorld,pl:mixin:A,pl:runtimedistcleaner:A}
    at net.minecraft.world.World.func_241211_a_(World.java:212) ~[?:?] {re:mixin,pl:accesstransformer:B,pl:runtimedistcleaner:A,re:classloading,pl:accesstransformer:B,pl:mixin:APP:sereneseasons.mixins.json:MixinWorld,pl:mixin:A,pl:runtimedistcleaner:A}
    at net.minecraft.world.World.func_180501_a(World.java:176) ~[?:?] {re:mixin,pl:accesstransformer:B,pl:runtimedistcleaner:A,re:classloading,pl:accesstransformer:B,pl:mixin:APP:sereneseasons.mixins.json:MixinWorld,pl:mixin:A,pl:runtimedistcleaner:A}
    at com.ferreusveritas.dynamictrees.blocks.leaves.DynamicLeavesBlock.age(DynamicLeavesBlock.java:194) ~[dynamictrees:1.16.5-0.10.0-Beta12] {re:classloading}
    at com.ferreusveritas.dynamictrees.blocks.leaves.DynamicLeavesBlock.doTick(DynamicLeavesBlock.java:160) ~[dynamictrees:1.16.5-0.10.0-Beta12] {re:classloading}
    at com.ferreusveritas.dynamictrees.blocks.leaves.DynamicLeavesBlock.func_225542_b_(DynamicLeavesBlock.java:137) ~[dynamictrees:1.16.5-0.10.0-Beta12] {re:classloading}
    at net.minecraft.block.AbstractBlock$AbstractBlockState.func_227034_b_(AbstractBlock.java:624) ~[?:?] {re:mixin,pl:runtimedistcleaner:A,re:classloading,pl:runtimedistcleaner:A}
    at net.minecraft.world.server.ServerWorld.func_217441_a(ServerWorld.java:508) ~[?:?] {re:mixin,pl:accesstransformer:B,pl:runtimedistcleaner:A,re:classloading,pl:accesstransformer:B,pl:mixin:APP:abnormals_core.mixins.json:ServerWorldMixin,pl:mixin:APP:endergetic.mixins.json:ServerWorldMixin,pl:mixin:A,pl:runtimedistcleaner:A}
    at net.minecraft.world.server.ServerChunkProvider.func_241099_a_(ServerChunkProvider.java:362) ~[?:?] {re:mixin,pl:accesstransformer:B,pl:runtimedistcleaner:A,re:classloading,pl:accesstransformer:B,pl:runtimedistcleaner:A}
    at java.util.ArrayList.forEach(Unknown Source) ~[?:1.8.0_291] {}
    at net.minecraft.world.server.ServerChunkProvider.func_217220_m(ServerChunkProvider.java:346) ~[?:?] {re:mixin,pl:accesstransformer:B,pl:runtimedistcleaner:A,re:classloading,pl:accesstransformer:B,pl:runtimedistcleaner:A}
    at net.minecraft.world.server.ServerChunkProvider.func_217207_a(ServerChunkProvider.java:321) ~[?:?] {re:mixin,pl:accesstransformer:B,pl:runtimedistcleaner:A,re:classloading,pl:accesstransformer:B,pl:runtimedistcleaner:A}
    at net.minecraft.world.server.ServerWorld.func_72835_b(ServerWorld.java:333) ~[?:?] {re:mixin,pl:accesstransformer:B,pl:runtimedistcleaner:A,re:classloading,pl:accesstransformer:B,pl:mixin:APP:abnormals_core.mixins.json:ServerWorldMixin,pl:mixin:APP:endergetic.mixins.json:ServerWorldMixin,pl:mixin:A,pl:runtimedistcleaner:A}
-- Affected level --
Details:
    All players: 2 total; [ServerPlayerEntity['JustPokoo'/68, l='ServerLevel[world]', x=-564.50, y=78.00, z=49.22], ServerPlayerEntity['oberonsuccs'/157, l='ServerLevel[world]', x=-601.58, y=88.12, z=108.25]]
    Chunk stats: ServerChunkCache: 3921
    Level dimension: minecraft:overworld
    Level spawn location: World: (48,68,-160), Chunk: (at 0,4,0 in 3,-10; contains blocks 48,0,-160 to 63,255,-145), Region: (0,-1; contains chunks 0,-32 to 31,-1, blocks 0,0,-512 to 511,255,-1)
    Level time: 1009068 game time, 1156673 day time
    Level name: world
    Level game mode: Game mode: survival (ID 0). Hardcore: false. Cheats: false
    Level weather: Rain time: 74825 (now: false), thunder time: 22208 (now: false)
    Known server brands: forge
    Level was modded: true
    Level storage version: 0x04ABD - Anvil
Stacktrace:
    at net.minecraft.server.MinecraftServer.func_71190_q(MinecraftServer.java:851) ~[?:?] {re:mixin,pl:accesstransformer:B,pl:runtimedistcleaner:A,re:classloading,pl:accesstransformer:B,pl:runtimedistcleaner:A}
    at net.minecraft.server.dedicated.DedicatedServer.func_71190_q(DedicatedServer.java:291) ~[?:?] {re:classloading,pl:accesstransformer:B}
    at net.minecraft.server.MinecraftServer.func_71217_p(MinecraftServer.java:787) ~[?:?] {re:mixin,pl:accesstransformer:B,pl:runtimedistcleaner:A,re:classloading,pl:accesstransformer:B,pl:runtimedistcleaner:A}
    at net.minecraft.server.MinecraftServer.func_240802_v_(MinecraftServer.java:642) ~[?:?] {re:mixin,pl:accesstransformer:B,pl:runtimedistcleaner:A,re:classloading,pl:accesstransformer:B,pl:runtimedistcleaner:A}
    at net.minecraft.server.MinecraftServer.func_240783_a_(MinecraftServer.java:232) ~[?:?] {re:mixin,pl:accesstransformer:B,pl:runtimedistcleaner:A,re:classloading,pl:accesstransformer:B,pl:runtimedistcleaner:A}
    at java.lang.Thread.run(Unknown Source) [?:1.8.0_291] {}


-- System Details --
Details:
    Minecraft Version: 1.16.5
    Minecraft Version ID: 1.16.5
    Operating System: Windows 10 (amd64) version 10.0
    Java Version: 1.8.0_291, Oracle Corporation
    Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Oracle Corporation
    Memory: 1416021392 bytes (1350 MB) / 2052063232 bytes (1957 MB) up to 2052063232 bytes (1957 MB)
    CPUs: 12
    JVM Flags: 2 total; -Xmx2G -Xms2G
    ModLauncher: 8.0.9+86+master.3cf110c
    ModLauncher launch target: fmlserver
    ModLauncher naming: srg
    ModLauncher services: 
        /mixin-0.8.2.jar mixin PLUGINSERVICE 
        /eventbus-4.0.0.jar eventbus PLUGINSERVICE 
        /forge.jar object_holder_definalize PLUGINSERVICE 
        /forge.jar runtime_enum_extender PLUGINSERVICE 
        /accesstransformers-3.0.1.jar accesstransformer PLUGINSERVICE 
        /forge.jar capability_inject_definalize PLUGINSERVICE 
        /forge.jar runtimedistcleaner PLUGINSERVICE 
        /mixin-0.8.2.jar mixin TRANSFORMATIONSERVICE 
        /forge.jar fml TRANSFORMATIONSERVICE 
    FML: 36.1
    Forge: net.minecraftforge:36.1.0
    FML Language Providers: 
        [email protected]
        minecraft@1
    Mod List: 
        forge-1.16.5-36.1.0-server.jar                    |Minecraft                     |minecraft                     |1.16.5              |DONE      |NOSIGNATURE
        SereneSeasons-1.16.5-4.0.1.91-universal.jar       |Serene Seasons                |sereneseasons                 |1.16.5-4.0.1.91     |DONE      |NOSIGNATURE
        Desolation+1.1.0-1+1.16.5.jar                     |Desolation (Forge)            |desolation                    |1.1.0-1             |DONE      |NOSIGNATURE
        CreativeCore_v2.1.3_mc1.16.5.jar                  |CreativeCore                  |creativecore                  |2.0.0               |DONE      |NOSIGNATURE
        AI-Improvements-1.16.2-0.3.0.jar                  |AI-Improvements               |aiimprovements                |0.3.0               |DONE      |NOSIGNATURE
        ItemPhysic_v1.4.18_mc1.16.5.jar                   |ItemPhysic                    |itemphysic                    |1.6.0               |DONE      |NOSIGNATURE
        abnormals_core-1.16.5-3.1.1.jar                   |Abnormals Core                |abnormals_core                |3.1.1               |DONE      |NOSIGNATURE
        endergetic-1.16.4-3.0.0.jar                       |The Endergetic Expansion      |endergetic                    |3.0.0               |DONE      |NOSIGNATURE
        shulker_enchantments-1.1.1.jar                    |Shulker Enchantments          |shulker_enchantments          |1.1.1               |DONE      |NOSIGNATURE
        forge-1.16.5-36.1.0-universal.jar                 |Forge                         |forge                         |36.1.0              |DONE      |22:af:21:d8:19:82:7f:93:94:fe:2b:ac:b7:e4:41:57:68:39:87:b1:a7:5c:c6:44:f9:25:74:21:14:f5:0d:90
        DynamicTrees-1.16.5-0.10.0-Beta12.jar             |Dynamic Trees                 |dynamictrees                  |1.16.5-0.10.0-Beta12|DONE      |NOSIGNATURE
        gravestone-1.16.5-1.0.4.jar                       |Gravestone Mod                |gravestone                    |1.16.5-1.0.4        |DONE      |NOSIGNATURE
        DynamicSurroundings-1.16.4-4.0.4.2.jar            |§3Dynamic Surroundings        |dsurround                     |1.16.4-4.0.4.2      |DONE      |b4:98:14:b9:76:55:25:4f:e5:5f:4d:71:90:87:43:5b:f9:d5:3a:02:60:42:5e:da:1f:15:9c:ff:be:a9:7c:77
        Clumps-6.0.0.24.jar                               |Clumps                        |clumps                        |6.0.0.24            |DONE      |NOSIGNATURE
        journeymap-1.16.5-5.7.1.jar                       |Journeymap                    |journeymap                    |5.7.1               |DONE      |NOSIGNATURE
        citadel-1.6.3.jar                                 |Citadel                       |citadel                       |1.6.3               |DONE      |NOSIGNATURE
        alexsmobs-1.10.1.jar                              |Alex's Mobs                   |alexsmobs                     |1.10.1              |DONE      |NOSIGNATURE
        rats-7.2.0-1.16.5.jar                             |Rats                          |rats                          |7.2.0               |DONE      |NOSIGNATURE
        ratlantis-1.0.0-1.16.3.jar                        |Rats: Ratlantis               |ratlantis                     |1.0.0-1.16.3        |DONE      |NOSIGNATURE
    Crash Report UUID: 03b149b0-f1bc-4705-a4a3-1e7806eb53b2
    Player Count: 2 / 20; [ServerPlayerEntity['JustPokoo'/68, l='ServerLevel[world]', x=-564.50, y=78.00, z=49.22], ServerPlayerEntity['oberonsuccs'/157, l='ServerLevel[world]', x=-601.58, y=88.12, z=108.25]]
    Data Packs: vanilla, mod:sereneseasons, mod:desolation, mod:creativecore, mod:aiimprovements, mod:itemphysic, mod:abnormals_core, mod:endergetic, mod:shulker_enchantments, mod:forge, mod:dynamictrees, mod:gravestone, mod:dsurround, mod:clumps, mod:journeymap (incompatible), mod:citadel (incompatible), mod:alexsmobs, mod:rats, mod:ratlantis
    Is Modded: Definitely; Server brand changed to 'forge'
    Type: Dedicated Server (map_server.txt)

How can I fix my server?

Edited by oberonsucks
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  • oberonsucks changed the title to My minecraft forge server crashes when I enter, dont know how to fix it
DaemonUmbra Reality Controller

DaemonUmbra

Posted
Posted

Looks like a Dynamic Trees issue, check for updates and if there aren't any, provide the log to the devs

This is my Forum Signature, I am currently attempting to transform it into a small guide for fixing easier issues using spoiler blocks to keep things tidy.

 

As the most common issue I feel I should put this outside the main bulk:

The only official source for Forge is https://files.minecraftforge.net, and the only site I trust for getting mods is CurseForge.

If you use any site other than these, please take a look at the StopModReposts project and install their browser extension, I would also advise running a virus scan.

 

For players asking for assistance with Forge please expand the spoiler below and read the appropriate section(s) in its/their entirety.

Spoiler

Logs (Most issues require logs to diagnose):

Spoiler

Please post logs using one of the following sites (Thank you Lumber Wizard for the list):

https://gist.github.com/: 100MB Requires member (Free)

https://pastebin.com/: 512KB as guest, 10MB as Pro ($$$)

https://hastebin.com/: 400KB

Do NOT use sites like Mediafire, Dropbox, OneDrive, Google Drive, or a site that has a countdown before offering downloads.

 

What to provide:

...for Crashes and Runtime issues:

Minecraft 1.14.4 and newer:

Post debug.log

Older versions:

Please update...

 

...for Installer Issues:

Post your installer log, found in the same place you ran the installer

This log will be called either installer.log or named the same as the installer but with .log on the end

Note for Windows users:

Windows hides file extensions by default so the installer may appear without the .jar extension then when the .log is added the log will appear with the .jar extension

 

Where to get it:

Mojang Launcher: When using the Mojang launcher debug.log is found in .minecraft\logs.

 

Curse/Overwolf: If you are using the Curse Launcher, their configurations break Forge's log settings, fortunately there is an easier workaround than I originally thought, this works even with Curse's installation of the Minecraft launcher as long as it is not launched THROUGH Twitch:

Spoiler
  1. Make sure you have the correct version of Forge installed (some packs are heavily dependent on one specific build of Forge)
  2. Make a launcher profile targeting this version of Forge.
  3. Set the launcher profile's GameDir property to the pack's instance folder (not the instances folder, the folder that has the pack's name on it).
  4. Now launch the pack through that profile and follow the "Mojang Launcher" instructions above.

Video:

Spoiler

 

 

 

or alternately, 

 

Fallback ("No logs are generated"):

If you don't see logs generated in the usual place, provide the launcher_log.txt from .minecraft

 

Server Not Starting:

Spoiler

If your server does not start or a command window appears and immediately goes away, run the jar manually and provide the output.

 

Reporting Illegal/Inappropriate Adfocus Ads:

Spoiler

Get a screenshot of the URL bar or copy/paste the whole URL into a thread on the General Discussion board with a description of the Ad.

Lex will need the Ad ID contained in that URL to report it to Adfocus' support team.

 

Posting your mod as a GitHub Repo:

Spoiler

When you have an issue with your mod the most helpful thing you can do when asking for help is to provide your code to those helping you. The most convenient way to do this is via GitHub or another source control hub.

When setting up a GitHub Repo it might seem easy to just upload everything, however this method has the potential for mistakes that could lead to trouble later on, it is recommended to use a Git client or to get comfortable with the Git command line. The following instructions will use the Git Command Line and as such they assume you already have it installed and that you have created a repository.

 

  1. Open a command prompt (CMD, Powershell, Terminal, etc).
  2. Navigate to the folder you extracted Forge’s MDK to (the one that had all the licenses in).
  3. Run the following commands:
    1. git init
    2. git remote add origin [Your Repository's URL]
      • In the case of GitHub it should look like: https://GitHub.com/[Your Username]/[Repo Name].git
    3. git fetch
    4. git checkout --track origin/master
    5. git stage *
    6. git commit -m "[Your commit message]"
    7. git push
  4. Navigate to GitHub and you should now see most of the files.
    • note that it is intentional that some are not synced with GitHub and this is done with the (hidden) .gitignore file that Forge’s MDK has provided (hence the strictness on which folder git init is run from)
  5. Now you can share your GitHub link with those who you are asking for help.

[Workaround line, please ignore]

 

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