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
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
Try removing the mods one by one until the crashes stop. ... im having the same problem but even when i delete my .techniclauncher (i have the problem with tekkit) it still doesnt work ... I have a problem too, please help. ---- Minecraft Crash Report ---- // I bet Cylons wouldn't have this problem. Time: 10/6/12 1:25 PM Description: Failed to start game java.lang.NullPointerException at cpw.mods.fml.client.TextureFXManager.getEffectTexture(TextureFXManager.java:163) at cpw.mods.fml.client.TextureFXManager.getTextureDimensions(TextureFXManager.java:208) at cpw.mods.fml.client.TextureFXManager.
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
It is an issue with adventurebackpack Backup your world and make a test without this mod If this is working, put the mod back in or try other builds
Videos
02:14
How To Fix Minecraft Java.Lang.NullPointerException Error [2025] ...
01:34
How To Fix Minecraft Java.Lang.NullPointerException - YouTube
01:40
How To Fix Minecraft Java.lang.NullPointerException [Very EASY!] ...
How To Fix Minecraft Java.Lang.NullPointerException ...
Top answer 1 of 4
1
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
2 of 4
0
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
2
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,
2 of 4
1
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
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 - 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...
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 - I can load into the minecraft launcher and game just fine, but as soon as i load into my world i get to the "building terrain" bit, then instant " The game crashed: exception in server tick loop Error: java.lang.NoClassDefFoundError: net/minecraft/entity/Entity$2 " ... Ive been playing on a world for about a month now and ive decided to add some mods.
Fossils and Archeology Mod Revival Wiki
fossils-archeology.fandom.com › f › p › 3320054632415559970 › r › 3587255587307848309
I keep getting the "Error: java.lang.NullPointerException: Initializing game" and i cannot fix it | Fandom
</p><p> </p><p> I'm currently have Fossils_Archeology_Revival-1.7.10_Build-7.3 and llibrary-1.7.14-1.12.2 and used forge-1.7.10-10.13.4.1558-1.7.10-installer-win I have Java version 8 update 181 (build 1.8.0_181-b13), the crash I keep getting is: Error: java.lang.NullPointerException: Initializing game and it will not let me view the crash report. </p><p> </p><p> I'm not the best with this stuff so If anyone can help me I would be very greatful! ;-; </p> (Edited by A Fandom user) 0 · Mushroomsock·7/18/2018 · <p>Your llibrary is the wrong version. You're using llibrary-1.7.14-1.12.2, which is for Minecraft 1.12, not 1.7.10 (which this mod is for.)
GitHub
github.com › Asek3 › Oculus › issues › 187
Cannot invoke "net.minecraft.client.renderer. ...
September 17, 2022 - java.lang.NullPointerException: Cannot invoke "net.minecraft.client.renderer.ShaderInstance.m_173350_(String, Object)" because "$$13" is null#187
Published Sep 17, 2022
Minecraft Forum
minecraftforum.net › home › minecraft forum › support › java edition support › modded server java.lang.nullpointerexception
modded server java.lang.nullpointerexception - Java Edition Support - Support - Minecraft Forum - Minecraft Forum
hantmentdescriptions&gv=1.16.4 [17:13:42] [Forge Version Check/INFO]: [enchdesc] Found status: BETA Current: 7.1.20 Target: null [17:13:42] [Forge Version Check/INFO]: [mcwtrpdoors] Starting version check at https://raw.githubusercontent.com/sketchmacaw/macawsmods/master/trapdoors.json [17:13:42] [Forge Version Check/INFO]: [mcwtrpdoors] Found status: OUTDATED Current: 1.0.8 Target: 1.0.9 [17:13:42] [Forge Version Check/INFO]: [mcwfences] Starting version check at https://raw.githubusercontent.com/sketchmacaw/macawsmods/master/fences.json [17:13:42] [Forge Version Check/INFO]: [mcwfences]
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
1
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.
2 of 5
1
I'm getting this same stupid bug and I myself am too stupid to find out why when joining MY OWN DAMN SERVER. Server latest.log: https://mclo.gs/2VT1HIq My latest.log: https://mclo.gs/5L4MKvR
Hypixel Forums
hypixel.net › home › forums › hypixel server › community help forum
Error Java . Lang . NullPointerException Please help me | Hypixel Forums
July 20, 2017 - Click to expand... It means mod (s) you are using are incompatible with your version of forge.
GitHub
github.com › CaffeineMC › sodium › issues › 1909
[Fabric 1.20.1][CRASH] java.lang.NullPointerException · Issue #1909 · CaffeineMC/sodium
July 24, 2023 - Bug Description This issue occurs at random after having updated some mods recently, but it occurs mostly within my base in which there are many things that need to get rendered. The client crashes immediately to desktop (CTD) upon encou...
Published Jul 24, 2023
Planet Minecraft
planetminecraft.com › forums › help › javaedition › internal exception: java.lang.nullpointerexception
Internal Exception: java.lang.NullPointerException
I'm getting an Internal Error: ... a function is calling a variable which ha snot been previously defined. If you're using mods, then one of them has not been coded properly....
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 - java.lang.NullPointerException: Cannot invoke "net.minecraft.client.renderer.texture.TextureAtlasSprite.m_118367_(double)" because "sprite" is null at me.jellysquid.mods.sodium.client.render.chunk.compile.pipeline.FluidRenderer.render(FluidRenderer.java:340) ~[rubidium-mc1.20.1-0.7.1.jar#358!/:?] {re:mixin,re:classloading,pl:mixin:APP:mixins.oculus.compat.sodium.json:separate_ao.MixinFluidRenderer,pl:mixin:A} at me.jellysquid.mods.sodium.client.render.chunk.compile.tasks.ChunkBuilderMeshingTask.execute(ChunkBuilderMeshingTask.java:125) ~[rubidium-mc1.20.1-0.7.1.jar#358!/:?] {re:mixin,re:classl
Published Sep 27, 2023
GitHub
github.com › CreativeMD › AmbientSounds › issues › 20
Unexpected error - Caused by: java.lang.NullPointerException · Issue #20 · CreativeMD/AmbientSounds
Unexpected error - Caused by: java.lang.NullPointerException#20 · Copy link · ghost · opened · on Dec 18, 2017 · My game is crashing when I put ambient sounds in the mods folder (it happens with latest version too). Every piece of info should be contained in the following log: ---- Minecraft Crash Report ---- WARNING: coremods are present: BetterFoliageLoader (BetterFoliage-MC1.12-2.1.10.jar) DynamicSurroundingsCore (DynamicSurroundings-1.12.2-3.4.7.2.jar) SoundFixPatchingLoader (AmbientSounds v2.2.1 mc1.12.2.jar) Contact their authors BEFORE contacting forge ·
Minecraft Forum
minecraftforum.net › home › minecraft forum › support › java edition support › modded minecraft nullpointerexception crash
Modded Minecraft NullPointerException Crash - Java Edition Support - Support - Minecraft Forum - Minecraft Forum
Quote from FutureNyanCat NullPointerException is caused by the following things: Wrong version of Forge. Try reading what's required for the mod. Mod that edits base .class's Beware! Some mods can modify your minecraft.jar. Wild Caves mod. You already did this, right?
Top answer 1 of 2
2
http://www.minecraftforum.net/forums/mapping-and-modding/minecraft-mods/modification-development/2272349-lessons-from-my-first-mc-1-8-mod
This guy explains you have to register the item renders in the init method. I did it and it worked.
All I had to do was move the render part to the init method. It turned out like this in the base Mod class:
public void load(FMLInitializationEvent event){
if(event.getSide() == Side.CLIENT)
{
RenderItem renderItem = Minecraft.getMinecraft().getRenderItem();
renderItem.getItemModelMesher().register(testIngot, 0, new ModelResourceLocation(sekai.MODID + ":" + ((testItem) testIngot).getName(), "inventory"));
}
}
Thank you guys anyway.
2 of 2
0
I believe your issue is a difference between the MODNAME and MODID in the instantiation of the ModelResourceLocation. The first parameter requires the MODID before the ":", you're using the MODNAME. Try changing this line in your base mod class:
renderItem.getItemModelMesher().register(testIngot, 0, new ModelResourceLocation("sekai:" + ((testItem) testIngot).getName(), "inventory"));
To this:
renderItem.getItemModelMesher().register(testIngot, 0, new ModelResourceLocation("sekairocha:" + ((testItem) testIngot).getName(), "inventory"));
Or even better:
renderItem.getItemModelMesher().register(testIngot, 0, new ModelResourceLocation(sekai.MODID + ":" + ((testItem) testIngot).getName(), "inventory"));
In addition to that fix, I think your item class may need some alterations. Change your constructor to this:
public testItem(){
super(); //missing initializations from Item class
maxStackSize = 64;
this.setCreativeTab(CreativeTabs.tabMisc);
this.setUnlocalizedName("testIngot");
GameRegistry.registerItem(this, name); //do this last
}
Reddit
reddit.com › r/minecraft › help minecraft server 1.20.1 java.lang.nullpointerexception after reconnect.
r/Minecraft on Reddit: Help Minecraft Server 1.20.1 java.lang.nullpointerexception after reconnect.
November 3, 2023 -
I created a local minecraft server dedicated to Mojang's own Server.jar and added some mods and it worked perfectly, but sometimes when disconnecting we were unable to reconnect (including me on the same machine as the server) and we kept getting the error java.lang.nullpointerexception but after a random amount of time we managed to reconnect. If anyone knows why this error is occurring and could help us, I would greatly appreciate it.
Edit: The problem was the mod skin changer, after removing it it worked normally. Thanks for the help flanigomik.
My logs:
latest.log - https://mclo.gs/5Gbs2j4
debug.log - https://mclo.gs/IntpoOT
Top answer 1 of 2
1
Upvote this comment if this is a good quality post that fits the purpose of r/Minecraft Downvote this comment if this post is poor quality or does not fit the purpose of r/Minecraft Downvote this comment and report the post if it breaks the rules Subreddit Rules
2 of 2
1
A null pointer can be caused by a mountain of things, will need the server logs to troubleshoot
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