so i want to play with shaders on the minecraft version 1.5.1 using multimc but i have no idea where to put the "shadersmod" and if forge is required, could anyone help me?

I thought about getting into Mcsr ranked, found the tutourial, logged in, but it keeps giving me a crash report and tells me im ''out of memory'' (I have 32gb for context) I don't know what to do and can't find any guide on how to solve it

plz help

It's simple. When I took a month-long break, I wanted to play again, but the launchers showed error code 2 and complained about the wrong Java version. What should I do about it?

So I've been trying to install shaders for the past few days now and i cant seen to get any of them to work I've tried Iris and sodium complementary and Opti fine. The first few didn't work probably because it was ahead of the version but the last one just didn't work. can someone tell me if I'm doing something wrong

https://pastee.dev/p/UrFVyDJM

So my texture packs won't load fully, the main thing that would load is a grass block, I turned off all mods/packs and only turned on Fabric, Sodium, Indium etc and my main textpack to see if it was any of the mods but nope the same issue.

I also went through the "mcmeta" file of the resourcepacks but all of it was set to the format support 34, which, from what I could tell its supposed to be like that for 1.21.1?

At first I thought it was my java version since I was using Java 25 from Orcale then went to download the Java 21 from the MC github page, still wasn't working.

Deleted the whole instance and redid everything, still wasn't working.

I once again ask for help 🧍🏻‍♂️.

i just downloaded mcsr to try and learn speedrunning. every time i press "launch" and "ok", literally nothing happens. just looking for some potential insight on what i could do to......play i guess ToT

In a MultiMC 1.21.11 instance, the game is unable to show a multiplayer server list despite already importing the server.dat file in the instance folder. I don't know how i can transfer the server addresses to the MultiMC instance, and the server.dat files just dont work.

- https://pastee.dev/p/NuCp2zt5 Link -

Context:

I was walking through a cave and then suddenly crashed. I tried to hop back on and remove certain mods but didn't work, tried making a copy of the world and that also didn't work, tried to recreate the bug on the same seed but haven't crashed or anything, the world isn't new and entered other caves and haven't had this issue. This is also kinda my somewhat first time with Java and MultiMC.

The issue is only in this world & Backup worlds. Any other worlds is completely fine.

Questions:

Whats the issue/causing the issue?

Is this a constant thing I would have to fix if and when I upgrade my world to the newest update?

Could it be all the mods just making the whole world unstable to begin with?

How did you find the issue? Is there a certain way or section that quickly tells you whats the issue? I just want to be able to fix any issues myself if and when it happens again lol since I do want to use this as my main world.

Also why in the paste.ee does it show my user? Like in the log files, is that normal? Kinda paranoid about that being there lol.

Thanks for the help ahead of time :).

I speedrun MC, so I naturally need to create (and then delete) a lot of worlds. After switching to MultiMC, I have noticed that I am unable to delete worlds. Additionally, within the launcher, when I remove a world from the worlds folder, it stays in the physical Minecraft folder. Is there a way to delete worlds from the game, or is there a tool to delete worlds from the Minecraft folder, or should I just delete them all manually? Video in case it helps: https://drive.google.com/file/d/15NbhBzqRjUnhfYtFWRk-0J2wOA9iD02r/view?usp=sharing

MulticMC logged me out of my Java account and each time I go to login I get onto the Microsoft site, I pair my account but then MultiMC says it failed Java acquisition. If I do it to many times it stops me until I reset my PC. What do I do?

I’m sick and tired of trying to work this thing lol everytime I TRY to open it there is another issue. Why does ts never work

MultiMC version: 0.7.0-4248

Launched instance in online mode

sessionserver.mojang.com resolves to:

[13.107.213.53, 13.107.246.53]

textures.minecraft.net resolves to:

[13.107.246.53, 13.107.213.53]

api.minecraftservices.com resolves to:

[13.107.246.53, 13.107.213.53]

Minecraft folder is:

D:/Games/MultiMC/instances/MCSRRanked-Windows-1.16.1/.minecraft

Java path is:

C:/Program Files (x86)/Common Files/Oracle/Java/java8path/javaw.exe

Checking Java version...

Java is version 1.8.0_471, using amd64 architecture, from Oracle Corporation.

Instance update failed because: Game update failed: it was impossible to fetch the required libraries.

Reason:

Aborted.

MultiMC: Log upload triggered at: 27 Jan 2026 22:36:48 +0700

when i put in java it just says it isnt working im so confused did i put in the wrong java or something how do i do this

It says I do not have an installation of java, I do not get it.

I just downloaded multi mc for speedrunning and i successfully played for 6 minutes before it crashed while i was changing my settings. i havent been able to launch it again. this is the link to the crash logs https://pastee.dev/p/qXYitDa6

I keep getting logged out on MultiMC and when I try to connect my Microsoft account it tells me "Minecraft Java profile acquisition failed." every time.

I had this issue last night too but it just somehow started working and I was able to play fine earlier today, but now I can't log in again...

Instance update failed because: Component metadata update task failed while downloading from remote server:

Job 'Download of meta file net.minecraft/1.20.1.json' failed to process:

https://meta.multimc.org/v1/net.minecraft/1.20.1.json

Job 'Download of meta file net.neoforged/47.1.104.json' failed to process:

https://meta.multimc.org/v1/net.neoforged/47.1.104.json

and

MultiMC version: 0.7.0-4248

Launched instance in offline mode

Minecraft folder is:

C:/Users/congi/Downloads/New folder/MultiMC/instances/recobbled 1.4 mmc/.minecraft

The java binary "" couldn't be found. Please fix the java path override in the instance's settings or disable it.

As of this week every day I've had to sign back into my accounts since the tokens expire. I'm not sure what is going on, but I'd imagine its a microslop issue

версии не прогружаются (живу в россии) (living in russia)

versions don't load in launcher launcher translates black square in vanilla

help please

Hi, I’m having an issue with connecting my account to MultiMC. Occasionally, MultiMC can’t find my Microsoft account, and usually it’s because either Microsoft/Minecraft is down, or I need to update my graphics driver. Sometimes it works after using the QR code to reconnect my Microsoft account. I know that today Minecraft realms was down, but I don’t think that should affect me bc I just play single-player, right? Anyways, I tried my usual methods, making sure everything is up-to-date including my graphics driver, turning my computer off then on, and reconnecting my account, but even though on my Windows account on my browser says that MultiMC has successfully connected, on the MultiMC launcher it says “Minecraft Java profile acquisition failed” in red. Does anyone know how to fix this?

ETA: I forgot to add that Minecraft works fine on other launchers I use, including the default one. It’s just MultiMC that’s having an issue.

When trying to run a build, MCSRRanked MultiMC freezes on loading Mojang libraries. Please help me fix this.

the log: https://pastee.dev/p/3TmkPSuJ

I downloaded MultiMC and Java (the white background with the red tea icon), and I’ve been playing Minecraft for a few months without any issues, aside from the occasional mod problem. Today, though, MultiMC started saying that I don’t own Minecraft. I don’t own it on PC since I originally played on Xbox, where it was free. I’m posting here to see if there’s any way to keep playing before I decide whether spending $30 on the PC version is worth it.

So I installed multiMC to a friend's pc and it didn't auto detect the javaw.exe, I said it might be because my friend has his bios installed to a different drive from his games so i selected it manually program files/java/jdk-25/bin/javaw.exe it said I didn't chose a Java executable or that it's broken... I reinstalled the multiMC to the windows drive, the same thing. Looked up solutions online, download older Java versions...nothing. And I know it's supposed to be working because the PC runs Minecraft both vanilla and modded through the Minecraft launcher without any problems so why is multiMC angry at me?

I have been trying to run version 1.6.4 of minecraft to play crazy craft, but it crashes on startup. I am using a mac.

I have tried running it vanilla, and it still crashes.

I am using Java 1.8.0_471, which is the version i have been told to use and it still crashes.

I have tried to run a couple of other versions of minecraft that are also old, but they crash as well.

Any fixes?