[SOLVED][1.12.2] The received string length is longer than maximum allowed 29 > 20

AlexCreeper25 · November 10, 2019

So I made a small collection of mods to play with a friend of mine. I set up a forge server and everything's fine until i try to join the game. As the title says, I'm getting a "The received string length is longer than maximum allowed 29 > 20" error. I am using the latest forge 2847 on both client and server.

I've already done loads of research but it always lead to bukkit/spigot related bugs.

Here's my mods list:

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Client error log:

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[FML]: NetworkDispatcher exception
io.netty.handler.codec.DecoderException: The received string length is longer than maximum allowed (29 > 20)
   at net.minecraft.network.PacketBuffer.readString(PacketBuffer.java:385) ~[gy.class:?]
   at net.minecraft.network.play.server.SPacketCustomPayload.readPacketData(SPacketCustomPayload.java:33) ~[iw.class:?]
   at net.minecraft.network.NettyPacketDecoder.decode(SourceFile:40) ~[gz.class:?]
   at io.netty.handler.codec.ByteToMessageDecoder.callDecode(ByteToMessageDecoder.java:411) ~[netty-all-4.1.9.Final.jar:4.1.9.Final]
   at io.netty.handler.codec.ByteToMessageDecoder.channelRead(ByteToMessageDecoder.java:248) ~[netty-all-4.1.9.Final.jar:4.1.9.Final]
   at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:362) [netty-all-4.1.9.Final.jar:4.1.9.Final]
   at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:348) [netty-all-4.1.9.Final.jar:4.1.9.Final]
   at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:340) [netty-all-4.1.9.Final.jar:4.1.9.Final]
   at io.netty.handler.codec.ByteToMessageDecoder.fireChannelRead(ByteToMessageDecoder.java:293) [netty-all-4.1.9.Final.jar:4.1.9.Final]
   at io.netty.handler.codec.ByteToMessageDecoder.channelRead(ByteToMessageDecoder.java:267) [netty-all-4.1.9.Final.jar:4.1.9.Final]
   at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:362) [netty-all-4.1.9.Final.jar:4.1.9.Final]
   at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:348) [netty-all-4.1.9.Final.jar:4.1.9.Final]
   at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:340) [netty-all-4.1.9.Final.jar:4.1.9.Final]
   at io.netty.handler.codec.ByteToMessageDecoder.fireChannelRead(ByteToMessageDecoder.java:293) [netty-all-4.1.9.Final.jar:4.1.9.Final]
   at io.netty.handler.codec.ByteToMessageDecoder.fireChannelRead(ByteToMessageDecoder.java:280) [netty-all-4.1.9.Final.jar:4.1.9.Final]
   at io.netty.handler.codec.ByteToMessageDecoder.callDecode(ByteToMessageDecoder.java:396) [netty-all-4.1.9.Final.jar:4.1.9.Final]
   at io.netty.handler.codec.ByteToMessageDecoder.channelRead(ByteToMessageDecoder.java:248) [netty-all-4.1.9.Final.jar:4.1.9.Final]
   at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:362) [netty-all-4.1.9.Final.jar:4.1.9.Final]
   at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:348) [netty-all-4.1.9.Final.jar:4.1.9.Final]
   at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:340) [netty-all-4.1.9.Final.jar:4.1.9.Final]
   at io.netty.handler.codec.MessageToMessageDecoder.channelRead(MessageToMessageDecoder.java:102) [netty-all-4.1.9.Final.jar:4.1.9.Final]
   at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:362) [netty-all-4.1.9.Final.jar:4.1.9.Final]
   at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:348) [netty-all-4.1.9.Final.jar:4.1.9.Final]
   at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:340) [netty-all-4.1.9.Final.jar:4.1.9.Final]
   at io.netty.handler.timeout.IdleStateHandler.channelRead(IdleStateHandler.java:287) [netty-all-4.1.9.Final.jar:4.1.9.Final]
   at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:362) [netty-all-4.1.9.Final.jar:4.1.9.Final]
   at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:348) [netty-all-4.1.9.Final.jar:4.1.9.Final]
   at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:340) [netty-all-4.1.9.Final.jar:4.1.9.Final]
   at io.netty.channel.DefaultChannelPipeline$HeadContext.channelRead(DefaultChannelPipeline.java:1334) [netty-all-4.1.9.Final.jar:4.1.9.Final]
   at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:362) [netty-all-4.1.9.Final.jar:4.1.9.Final]
   at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:348) [netty-all-4.1.9.Final.jar:4.1.9.Final]
   at io.netty.channel.DefaultChannelPipeline.fireChannelRead(DefaultChannelPipeline.java:926) [netty-all-4.1.9.Final.jar:4.1.9.Final]
   at io.netty.channel.nio.AbstractNioByteChannel$NioByteUnsafe.read(AbstractNioByteChannel.java:134) [netty-all-4.1.9.Final.jar:4.1.9.Final]
   at io.netty.channel.nio.NioEventLoop.processSelectedKey(NioEventLoop.java:624) [netty-all-4.1.9.Final.jar:4.1.9.Final]
   at io.netty.channel.nio.NioEventLoop.processSelectedKeysOptimized(NioEventLoop.java:559) [netty-all-4.1.9.Final.jar:4.1.9.Final]
   at io.netty.channel.nio.NioEventLoop.processSelectedKeys(NioEventLoop.java:476) [netty-all-4.1.9.Final.jar:4.1.9.Final]
   at io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:438) [netty-all-4.1.9.Final.jar:4.1.9.Final]
   at io.netty.util.concurrent.SingleThreadEventExecutor$5.run(SingleThreadEventExecutor.java:858) [netty-all-4.1.9.Final.jar:4.1.9.Final]
   at java.lang.Thread.run(Thread.java:745) [?:1.8.0_51]

Server login log:

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[19:54:50] [User Authenticator #2/INFO] [net.minecraft.server.network.NetHandlerLoginServer]: UUID of player AlexCreeper25 is ---------------------------------
[19:54:50] [Netty Epoll Server IO #0/INFO] [FML]: Client protocol version 2
[19:54:50] [Netty Epoll Server IO #0/INFO] [FML]: Client attempting to join with 73 mods : mowziesmobs@1.5.4,dynamictreesbop@1.12.2-1.4.1e,alcatrazcore@1.0.4,rhodonite@1.12.2-0.10-DEV,jei@4.15.0.283,guilib@$version,cofhcore@4.6.3,bibliocraft@2.4.5,betternether@0.1.8.3,lost_aether@0.1.1,iseedragons@0.5,thermalfoundation@2.6.3,wawla@2.5.273,mcp@9.42,ctm@MC1.12.2-1.0.0.29,journeymap@1.12.2-5.5.5,naturescompass@1.6.0,futuremccore@0.1.12,chameleon@1.12-4.1.3,conarm@1.2.5.3,surge@2.0.77,microblockcbe@2.6.2.83,foamfixcore@7.7.4,randompatches@1.12.2-1.19.1.1,llibrary@1.7.19,cofhworld@1.3.1,minecraftfuture@0.1.13,iceandfire@1.8.3,waila@1.8.26,snowrealmagic@0.3.3,traverse@1.6.0,guideapi@1.12-2.1.8-63,ido@1.0.6,forge@14.23.5.2847,twilightforest@3.10.1013,minecraft@1.12.2,tconstruct@1.12.2-2.13.0.171,biomesoplenty@7.0.1.2441,redstoneflux@2.1.0,dogslie@1.0.2,notreepunching@2.0.20,roguelike_dungeons_remastered@0.7.7,eyesinthedarkness@0.1.0,recall@1.0,debark@0.1.1,projectred-core@4.9.4.120,vanillafix@1.0.10-SNAPSHOT,quark@r1.6-177,mantle@1.12-1.3.3.55,morecharcoal@1.12.2-1.0.9,thebetweenlands@3.5.1,autoreglib@1.3-32,storagedrawers@1.12.2-5.4.0,morepaintings@$version,mrtjpcore@2.1.4.43,midnight@0.3.5,dawnoftimebuilder@1.0.0,projectred-exploration@4.9.4.120,FML@8.0.99.99,metallurgy@0.2.3,minecraftmultipartcbe@2.6.2.83,forgemultipartcbe@2.6.2.83,foamfix@0.10.7-1.12.2,paintingselgui@$version,netherendingores@1.12.2-1.3-hotfix1,aether_legacy@1.4.4,tinkersjei@1.2,instantunify@1.1.2,dttraverse@1.5,codechickenlib@3.2.3.357,dynamictrees@1.12.2-0.9.6,soundfilters@0.11_for_1.12,mobends@0.24
[19:54:50] [Netty Epoll Server IO #0/INFO] [CodeChickenLib-ConfigSync]: Skipping config sync, No mods have registered a syncable config.
[19:54:55] [Server thread/INFO] [FML]: [Server thread] Server side modded connection established
[19:54:55] [Server thread/INFO] [net.minecraft.server.management.PlayerList]: AlexCreeper25[/2.236.244.163:60295] logged in with entity id 10 at (-17.5, 90.0, 346.5)
[19:54:55] [Server thread/INFO] [net.minecraft.server.dedicated.DedicatedServer]: AlexCreeper25 joined the game
[19:54:55] [Server thread/INFO] [Waila]: Player EntityPlayerMP['AlexCreeper25'/10, l='world', x=-17.50, y=90.00, z=346.50] connected. Sending ping
[19:54:58] [Server thread/INFO] [net.minecraft.network.NetHandlerPlayServer]: AlexCreeper25 lost connection: Disconnected
[19:54:58] [Server thread/INFO] [net.minecraft.server.dedicated.DedicatedServer]: AlexCreeper25 left the game
[20:47:21] [User Authenticator #3/INFO] [net.minecraft.server.network.NetHandlerLoginServer]: UUID of player AlexCreeper25 is -------------------------------------
[20:47:22] [Netty Epoll Server IO #0/INFO] [FML]: Client protocol version 2
[20:47:22] [Netty Epoll Server IO #0/INFO] [FML]: Client attempting to join with 73 mods : mowziesmobs@1.5.4,dynamictreesbop@1.12.2-1.4.1e,alcatrazcore@1.0.4,rhodonite@1.12.2-0.10-DEV,jei@4.15.0.283,guilib@$version,cofhcore@4.6.3,bibliocraft@2.4.5,betternether@0.1.8.3,lost_aether@0.1.1,iseedragons@0.5,thermalfoundation@2.6.3,wawla@2.5.273,mcp@9.42,ctm@MC1.12.2-1.0.0.29,journeymap@1.12.2-5.5.5,naturescompass@1.6.0,futuremccore@0.1.12,chameleon@1.12-4.1.3,conarm@1.2.5.3,surge@2.0.77,microblockcbe@2.6.2.83,foamfixcore@7.7.4,randompatches@1.12.2-1.19.1.1,llibrary@1.7.19,cofhworld@1.3.1,minecraftfuture@0.1.13,iceandfire@1.8.3,waila@1.8.26,snowrealmagic@0.3.3,traverse@1.6.0,guideapi@1.12-2.1.8-63,ido@1.0.6,forge@14.23.5.2847,twilightforest@3.10.1013,minecraft@1.12.2,tconstruct@1.12.2-2.13.0.171,biomesoplenty@7.0.1.2441,redstoneflux@2.1.0,dogslie@1.0.2,notreepunching@2.0.20,roguelike_dungeons_remastered@0.7.7,eyesinthedarkness@0.1.0,recall@1.0,debark@0.1.1,projectred-core@4.9.4.120,vanillafix@1.0.10-SNAPSHOT,quark@r1.6-177,mantle@1.12-1.3.3.55,morecharcoal@1.12.2-1.0.9,thebetweenlands@3.5.1,autoreglib@1.3-32,storagedrawers@1.12.2-5.4.0,morepaintings@$version,mrtjpcore@2.1.4.43,midnight@0.3.5,dawnoftimebuilder@1.0.0,projectred-exploration@4.9.4.120,FML@8.0.99.99,metallurgy@0.2.3,minecraftmultipartcbe@2.6.2.83,forgemultipartcbe@2.6.2.83,foamfix@0.10.7-1.12.2,paintingselgui@$version,netherendingores@1.12.2-1.3-hotfix1,aether_legacy@1.4.4,tinkersjei@1.2,instantunify@1.1.2,dttraverse@1.5,codechickenlib@3.2.3.357,dynamictrees@1.12.2-0.9.6,soundfilters@0.11_for_1.12,mobends@0.24
[20:47:22] [Netty Epoll Server IO #0/INFO] [CodeChickenLib-ConfigSync]: Skipping config sync, No mods have registered a syncable config.
[20:47:26] [Server thread/INFO] [FML]: [Server thread] Server side modded connection established
[20:47:26] [Server thread/INFO] [net.minecraft.server.management.PlayerList]: AlexCreeper25[/2.236.244.163:59107] logged in with entity id 37 at (-17.5, 90.0, 346.5)
[20:47:26] [Server thread/INFO] [net.minecraft.server.dedicated.DedicatedServer]: AlexCreeper25 joined the game
[20:47:26] [Server thread/INFO] [Waila]: Player EntityPlayerMP['AlexCreeper25'/37, l='world', x=-17.50, y=90.00, z=346.50] connected. Sending ping
[20:47:29] [Server thread/INFO] [net.minecraft.network.NetHandlerPlayServer]: AlexCreeper25 lost connection: Disconnected
[20:47:29] [Server thread/INFO] [net.minecraft.server.dedicated.DedicatedServer]: AlexCreeper25 left the game

If you need any other info tell me. I also use some client side mods like Optifine, journeymap, betterfoliage, sound filter, mo' bends and wawla

EDIT: it looks like i cant upload the debug.log, it gives a -200 error

Edited November 11, 2019 by AlexCreeper25
included more info

DaemonUmbra · November 10, 2019

Please provide debug.log from both client and server using one of the sites listed in my signature below

AlexCreeper25 · November 11, 2019

Is it normal that it's taking a while to load the client's debug.log? The page even stops responding...

Btw here's the debug.log of the server:

https://paste.gg/p/anonymous/9cba97c03d814f48a5d7ba7b564fdf33

Imma try again with the client debug file

AlexCreeper25 · November 11, 2019

Ok so i found out that there's a continuosly reported error in the client debug file, which you can view here:

https://paste.gg/p/anonymous/739997b433914d9d8cb7e3799081adfc

I didnt manage to upload the full debug.log client file anywhere even on gist. It's like 19 MB of stuff.

Edited November 11, 2019 by AlexCreeper25

AlexCreeper25 · November 11, 2019

Alright imma take a look thank you although it didn't give any problems before

Edited November 11, 2019 by AlexCreeper25

AlexCreeper25 · November 11, 2019

Nevermind it's still happening, same error as before

AlexCreeper25 · November 11, 2019

So the error is still the same

New client debug.log, this time is full.

New server debug.log

Edited November 11, 2019 by AlexCreeper25

AlexCreeper25 · November 11, 2019

Alright then Imma do it thank you for your help!

Edited November 11, 2019 by AlexCreeper25

AlexCreeper25 · November 11, 2019

So, I managed to fix the issue, which is apparently caused by Wesley's Roguelike dungeons mod. Thank you everyone for the help!

RealSlimSquiddy · November 26, 2019

On 11/11/2019 at 7:09 PM, AlexCreeper25 said:

So, I managed to fix the issue, which is apparently caused by Wesley's Roguelike dungeons mod. Thank you everyone for the help!

Expand

Wait, I'm having the same issue. Did you just remove the mod to solve it?

jacksfart · June 11, 2020

i have the same error massage too it says string length longer than maximum allowed (24 > 20)

here are my mods

Age of Weapons XxRexRaptorxXAge of Weapons 1.12.2 (v.0.13.5).jar

Baubles Azanor13Baubles-1.12-1.5.2.jar

BetterFps GuichaguriBetterFps-1.4.8.jar

BiblioCraft NuchazBiblioCraft[v2.4.5][MC1.12.2].jar

Biomes O' Plenty ForstrideBiomesOPlenty-1.12.2-7.0.1.2441-universal.jar

ChocoCraft 3 TheSlayer5934chococraft_1.12.2-0.9.8.0.jar

ConnectedTextures Modtterrag1098CTM-MC1.12.2-1.0.2.31.jar

Death Compass vadis365DeathCompass-0.0.3.jar

Decocraft RazzleberryFoxDecocraft-2.6.3_1.12.2.jar

dotHack Weapons AzureDoomCdotHack Weapons-2.1.8.jar.disabled

GraveStone Modhenkelmaxgravestone-1.10.3.jar

Gravity Gun ohaiiChunGravityGun-1.12.2-7.1.0.jar

Gun Customization: Infinity CAS_ual_TYgci-0.6-1.12.2.jar

HatsohaiiChunHats-1.12.2-7.1.1.jar

Ice and Fire: Dragons in a whole new light!alex1the1666iceandfire-1.9.1-1.12.2.jar

iChunUtilohaiiChuniChunUtil-1.12.2-7.2.2.jar

Immersive EngineeringBluSunrizeImmersiveEngineering-0.12-98.jar

Inventory PetsPurplicious_Cow_inventorypets-1.12-2.0.6.jar

Iron ChestsProgWML6ironchest-1.12.2-7.0.72.847.jar

JJ Weapon ConfigJdiJack_JJ Weapon Config 1.12-1.12.2-v1.0.2.jar

JourneyMaptechbrewjourneymap-1.12.2-5.7.1.jar

Just Enough Items (JEI)mezzjei_1.12.2-4.15.0.291.jar

LLibrary_ForgeUser11902522llibrary-1.7.19-1.12.2.jar

LootBagsMalorolamLootBags-1.12.2-2.5.8.5.jar

Lycanites MobsLycanitelycanitesmobs-1.12.2-2.0.7.2.jar.disabled

MantlemDiyoMantle-1.12-1.3.3.55.jar

More Performance OptionswivioMorePreformanceMods.jar

MorphohaiiChunMorph-1.12.2-7.2.0.jar

Mowzie's Mobsbobmowziemowziesmobs-1.5.6.jar

MrCrayfish's Furniture ModMrCrayfishfurniture-6.3.1-1.12.2.jar

Not Enough PetsAstroTibsNotEnoughPets-1.12.2-v2.1.0.jar

Pam's HarvestCraftpamharvestcraftPam's HarvestCraft 1.12.2zg.jar

PatchouliVazkiiPatchouli-1.0-20.jar

PTRLibRazzleberryFoxPTRLib-1.0.4.jar

The Twilight ForestBenimatictwilightforest-1.12.2-3.10.1013-universal.jar

Tinkers ConstructmDiyoTConstruct-1.12.2-2.13.0.183.jar

Traveler's BackpackTiviacz1337TravellersBackpack-1.12.2-1.0.25.25.jar

WaystonesBlayTheNinthWaystones_1.12.2-4.1.0.jar

DaemonUmbra · June 11, 2020

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[SOLVED][1.12.2] The received string length is longer than maximum allowed 29 > 20

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