Your problem is already fixed probably, but for the people who are searching for a fix, follow my steps
- Search for CMD and run it as administrator
- Type in the bar:
netsh winsock reset - It should be fixed!
- If it still doesn't work, try contacting Mojang, the creators of Minecraft
Top answer 1 of 4
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Your problem is already fixed probably, but for the people who are searching for a fix, follow my steps
- Search for CMD and run it as administrator
- Type in the bar:
netsh winsock reset - It should be fixed!
- If it still doesn't work, try contacting Mojang, the creators of Minecraft
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If you are playing newer snapshots, This was a recent bug in the 17w14-16
They seem to have finally fixed it in 17w17a/b
It seemed to be related to a number of new additions like advancements and parrots.
Update your server_jar and your minecraft client to 17w17b (current)
If you are getting this issue on 1.11.2 release. Then open a bug report at bugs.mojang.com
Reddit
reddit.com › r/minecraft › java.lang.nullpointerexception: group
r/Minecraft on Reddit: java.lang.nullpointerexception: group
October 29, 2018 -
My husband is having trouble connecting to my server when i try to open to Lan. It was working yesterday and now after turning both mine and his pc’s off for the night he cant connect.
He keeps getting this error:
java.lang.nullpointerexception: group
Sometimes on my screen i can see that he has joined the game, then a second later it reads that he has left the game. On his screen it just says "Failed to connect to the server disconnected”
Hope someone can help :)
Top answer 1 of 4
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That error is extremely common in software from all sorta of causes so more details will be needed to narrow it down. Any additional information contained with the error would be needed. Minecraft may not display it on screen, but you can try enabling the message window (or whatever it's called) in the launcher. The error might show up there with more details when it happens. You might try to reboot both your PCs since it sounds like it was working yesterday. Other things to try: Make sure the Minecraft launcher on both PCs is set to the same Minecraft version. Make sure he can still run singleplayer and it's just a problem with multiplayer. This can help narrow down the issue at least. Run the latest video driver installer on his PC. Install the latest Java version on both your PCs (not sure if this matters). The technical reason for a nullpointerexception is that the developer forgot to account for some condition, usually a rare one, that isn't satisfied, so the game can't continue running. Sometimes the game couldn't run anyway so the developer doesn't bother trying to handle the condition, sometimes the developer forgets to provide a more useful error message for the condition,
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Nullpointers usually indicates some response within the server is returning a value equal to "null". As a result, the server can't proccess that value and fails. Please post logs from the PC which is suffering from the nullpointer
Unexpected error Error: java.lang.NullPointerException - Support & Bug Reports - Forge Forums
Good Evening, I am trying to figure out what is wrong with my modded version of minecraft. If its too many mods or if it's something I need to add. Below is the crash report. ---- Minecraft Crash Report ---- WARNING: coremods are present: Contact their authors BEFORE contacting forge // Would you... More on forums.minecraftforge.net
java.lang.NullPointerException, need fix please help - Java Edition Support - Support - Minecraft Forum - Minecraft Forum
Anyone know how to fix this problem? I have search everywhere but nothing, so if anyone know how to fix it, it would help allot. And it's NOT for a SERVER,... More on minecraftforum.net
Cant get into my server due to java.lang.NullPointerException [1.19.2] - Support & Bug Reports - Forge Forums
https://forums.minecraftforge.net/topic/122265-cant-get-into-my-server-due-to-javalangnullpointerexception-1192/ ... Share via email More sharing options... ... IPS spam blocked by CleanTalk. ... Before digging deeper, I’d try stripping the pack down to just Create and Structure Gel to see which one triggers the crash, then add mods back one by one. The error ... More on forums.minecraftforge.net
Internal Exception: java.lang.NullPointerException
I've been playing minecraft for a few months recently, but never on multiplayer. So now I'm trying to play multiplayer and I keep getting "Internal Exception: java.lang.NullPointerException" on trying to join servers. I put in the server name and IP, then save that to the list. I go back to list, select, and click "Join Server" .... It says "connecting to network" "logging in ..." and then our error ... More on planetminecraft.com
Minecraft Forum
minecraftforum.net › home › minecraft forum › support › java edition support › modded server error: java.lang.nullpointerexception: unexpected error
Modded Server Error: java.lang.NullPointerException: Unexpected error - Java Edition Support - Support - Minecraft Forum - Minecraft Forum
August 26, 2022 - I was playing a modded server, tried to use a spell from Ars Magica 2, and got kicked. Every time I join the launcher crashes and it gives the same error message. Someone else on the server was able to use the exact same spell with no problem before I did.
Forge Forums
forums.minecraftforge.net › home › minecraft forge › support & bug reports › unexpected error error: java.lang.nullpointerexception
Unexpected error Error: java.lang.NullPointerException - Support & Bug Reports - Forge Forums
November 11, 2018 - Before digging deeper, I’d try stripping the pack down to just Create and Structure Gel to see which one triggers the crash, then add mods back one by one. The error in your log points to something firing during world load, usually a bad mixin or missing dependency.
Minecraft Forum
minecraftforum.net › home › minecraft forum › support › java edition support › java.lang.nullpointerexception, need fix please help
java.lang.NullPointerException, need fix please help - Java Edition Support - Support - Minecraft Forum - Minecraft Forum
Saves can be found in your .minecraft/minecraft ... Quote from BlueWaste Anyone know how to fix this problem? I have search everywhere but nothing, so if anyone know how to fix it, it would help allot. And it's NOT for a SERVER, it's for the client 34 mods loaded mod_betterDungeons : Available (BetterDungeons.zip) java.lang.NullPointerException at mod_betterDungeons.getRandomMap(mod_betterDungeons.java:1268) at BetterDungeonsJungleCaves.(BetterDungeonsJungleCaves.java:38) at mod_betterDungeons.generateSurface(mod_betterDungeons.java:388) at BaseMod.generate(BaseMod.java:147) It seems that BetterDungeons is crashing; have you followed the installation instructions for that mod correctly?
Forge Forums
forums.minecraftforge.net › home › minecraft forge › support & bug reports › cant get into my server due to java.lang.nullpointerexception [1.19.2]
Cant get into my server due to java.lang.NullPointerException [1.19.2] - Support & Bug Reports - Forge Forums
March 23, 2023 - ... Before digging deeper, I’d try stripping the pack down to just Create and Structure Gel to see which one triggers the crash, then add mods back one by one. The error in your log points to something firing during world load, usually a bad mixin or missing dependency.
Planet Minecraft
planetminecraft.com › forums › help › javaedition › internal exception: java.lang.nullpointerexception
Internal Exception: java.lang.NullPointerException
March 21, 2015 - Alternatively, uninstall all of your mods, and reinstall them one by one to determine which is the problematic mod. If you don't use mods, then just reinstall your Minecraft. This should fix the problem. ... Gotcha guys. I'm on it ---- I recently re-re-installed MC so the error log is empty I'm afraid!
Minecraft Forum
minecraftforum.net › home › minecraft forum › support › java edition support › help! internal exception: java.lang.nullpointerexception error.
Help! Internal Exception: java.lang.NullPointerException error. - Java Edition Support - Support - Minecraft Forum - Minecraft Forum
February 11, 2017 - Click your name in the launcher, click log out and log back in Omg thank you!!! I did so many uninstalls and reinstalls of Java and Minecraft and this is all I had to do....
Reddit
reddit.com › r/moddedmc › internal exception java.lang.nullpointerexception can not invoke "net.minecraft.nbt.compoundtag.m_128459_(string) | forge 1.20.1 server
r/ModdedMC on Reddit: internal exception java.lang.nullpointerexception can not invoke "net.minecraft.nbt.compoundtag.m_128459_(string) | Forge 1.20.1 Server
April 17, 2024 -
when people try to connect to my server, they receive this error messageinternal exception java.lang.nullpointerexception can not invoke "net.minecraft.nbt.compoundtag.m_128459_(string)
i also received this error message as well but during this test for some reason it let me join the server, i've tested this out on singleplayer as well and the world works fine nothing seems to be corrupted it just doesn't work for the server.
we've also made multiple worlds for this specific pack i've made and they all have had this problem, randomly sometimes people will be able to join and play normally but other times they get this error and they cant play.
friends latest.log: https://mclo.gs/mHmks83
servers lastest.log: https://mclo.gs/si9AJk2
Top answer 1 of 5
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Falling Leaves is a client only mod and should be removed from the mods on the server Better F3 is also client only You need to check that you don't have other mods that are client only. edit: Oh dear, you've got lots of client only mods - embeddium is another one Here's a list of all the mods you need to take off the server: ambientsounds Better F3 Chat heads Cumulus menus Embeddium Embeddium Extra Falling Leaves mousetweaks There's probably more, I lost patience.
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https://mclo.gs/x7QKpuA can someone see whats wrong here, probably alot, but i am clueless on how to fix errors im just shoving mods in. it was fine until i added in the mod called apotheosis. whenever i remove that mod i can play, although whenever its back i cant. I'm just trying to figure out a way to use it without the error popping up. internal exception java.lang.nullpointerexception can not invoke "net.minecraft.nbt.compoundtag.m_128459_(string)
Minecraft Forum
minecraftforum.net › home › minecraft forum › support › java edition support › error: java.lang.nullpointerexception
Error: java.lang.NullPointerException - Java Edition Support - Support - Minecraft Forum - Minecraft Forum
The game crashed whilst unexpected error Error: java.lang.NullPointerException: Cannot invoke "net.minecraft.world.level.biome.Biome.m_47560_()" because "p_108801_" is null · here is the crash log · ---- Minecraft Crash Report ---- // You're mean. Time: 2023-12-07 23:48:37 Description: Unexpected error ·
YouTube
youtube.com › watch
How To Fix Minecraft Java.Lang.NullPointerException Error - YouTube
Learn how to fix the java.lang.NullPointerException error in Minecraft Java Edition on Windows 11 and PC. This tutorial covers common causes and solutions, i...
Published May 30, 2025
YouTube
youtube.com › quick and easy
How To Fix Minecraft java.lang.NullPointerException [Very EASY!] - YouTube
In this video I will show you how to fix minecraft java.lang.nullpointerexception.Hit the Like button and Subscribe to the channel to receive various useful ...
Published February 5, 2023 Views 100K
YouTube
youtube.com › watch
How To Fix Minecraft Java.Lang.NullPointerException Error [2025] - YouTube
How to Fix the java.lang.NullPointerException Error in Minecraft Java Edition on Windows 11 or PC: This tutorial helps you identify common causes and solutio...
Published June 19, 2025
GitHub
github.com › Asek3 › Rubidium › issues › 629
[1.20.1] Multiplayer Loading Crash "Error: java.lang.NullPointerException: Cannot invoke "net.minecraft.client.renderer.texture.TextureAtlasSprite.m_118367_(double)" · Issue #629 · Asek3/Rubidium
September 27, 2023 - The game crashed whilst encountered exception while building chunk meshes Error: java.lang.NullPointerException: Cannot invoke "net.minecraft.client.renderer.texture.TextureAtlasSprite.m_118367_(double)" because "sprite" is null ---- Min...
Author AlexisJacquemin
javaspring
javaspring.net › blog › java-lang-nullpointerexception-null-minecraft
Understanding `java.lang.NullPointerException` in Minecraft — javaspring.net
When a NullPointerException is thrown in Minecraft, the game usually provides a stack trace in the console. The stack trace shows the sequence of method calls that led to the exception. Look for the line number and the class where the exception was thrown. For example: Exception in thread "main" java.lang.NullPointerException at com.example.minecraftmod.MyModClass.doSomething(MyModClass.java:25) at com.example.minecraftmod.MyModClass.main(MyModClass.java:10)
Minecraft Forum
minecraftforum.net › home › minecraft forum › support › server support and administration › server error java.lang.nullpointerexception: null help
Server Error java.lang.NullPointerException: null Help - Server Support and Administration - Support - Minecraft Forum - Minecraft Forum
December 27, 2020 - Once my computer turned on again there was this error and now I can't play at the server at all. We play at 1.16.3 in Java. I have looked online but I didn't find anything that would help or was too tech and I didn't understand. Please tell me how I can solve this as simple as possible ... java.lang.NullPointerException: null at net.minecraft.server.MinecraftServer.a(SourceFile:569) ~[server.jar:?] at net.minecraft.server.MinecraftServer.t(SourceFile:596) ~[server.jar:?] at zg.t(SourceFile:558) ~[server.jar:?] at net.minecraft.server.MinecraftServer.w(SourceFile:704) ~[server.jar:?] at net.minecraft.server.MinecraftServer.a(SourceFile:254) ~[server.jar:?] at java.lang.Thread.run(Unknown Source) [?:1.8.0_261]
Aternos Community
board.aternos.org › thread › 85052-java-lang-nullpointerexception-unexpected-error
java.lang.NullPointerException: Unexpected error - Server - Aternos Community
January 7, 2022 - Try deleting the config folder which is located in the minecraft installation path (enter %appdata%/.minecraft in the file explorer ) and if it doesn't work then try deleting aether mod
JanBask Training
janbasktraining.com › community › java › what-should-i-do-with-this-error-java-lang-nullpointerexception-minecraft
What should I do with this error - java lang nullpointerexception minecraft? | JanBask Training Community
October 11, 2022 - My friend is having a really annoying problem with his minecraft but he doesn't have a SE account so I thought I'd ask this for him: Whenever he tries to log onto a server he gets this message: ... Your problem is already fixed regarding the java lang nullpointerexception minecraft probably, ...
GitHub
github.com › Asek3 › Oculus › issues › 187
java.lang.NullPointerException: Cannot invoke "net.minecraft.client.renderer.ShaderInstance.m_173350_(String, Object)" because "$$13" is null · Issue #187 · Asek3/Oculus
September 17, 2022 - ... java.lang.NullPointerException: Cannot invoke "net.minecraft.client.renderer.ShaderInstance.m_173350_(String, Object)" because "$$13" is null#187 ... ---- Minecraft Crash Report ---- // Hey, that tickles! Hehehe! Time: 9/16/22, 11:22 PM Description: Unexpected error java.lang.NullPointerException: Cannot invoke "net.minecraft.client.renderer.ShaderInstance.m_173350_(String, Object)" because "$$13" is null at com.mojang.blaze3d.vertex.BufferUploader.m_166838_(BufferUploader.java:100) ~[client-1.18.2-20220404.173914-srg.jar#270!/:?] {re:mixin,pl:accesstransformer:B,re:classloading,pl:accesst
Author thedaymare16