Modpack crashes on launch

[PlvsVltra]

Hello, I have a problem with a custom-made modpack: when I try to launch it in the MC Launcher program, it crashes on "State transition LOAD_REGISTRIES running" - in the lower left corner of the screen it says:
"REGISTERING minecraft:painting_variant" and
"REGISTERING minecraft:worldgen/biome"
it crashes and gives this message: 
The game crashed: initializing game
Error java.lang.NoClassDefFoundError:
org/antlr/v4/runtime/CharStream 
with the Exit Code: -1

 

the crash report looks like this:
https://paste.ee/p/b6VWXly2

If you can help, please respond because I really want this modpack to work, if you can't still thank you for trying, and I hope that this comes to help anyone in the future with the same problem. ❤️

[PlvsVltra]

Also i forgot to mention the MC and Forge versions: 1.21.1 - 52.1.1

[TileEntity]

The config of UnionLib is invalid

Delete the config of it (config folder) - if there is no change, try other builds of UnionLib

[PlvsVltra]

Oh thank you, just one more question: How do I access the config folder? (I have never done it before)

[TileEntity]

The config folder is in the same folder as the mods folder

 

if you are using the original Launcher, then it is

C:\Users\NAME\AppData\Roaming\.minecraft\config\

[PlvsVltra]

Thank you very much ❤️

 

[PlvsVltra]

I deleted it and the same problem keeps happening

I cannot fully delete the UnionLib mod because I'm playing on a handheld and have to have a controller support mod (it doesn't work without UnionLib)

[TileEntity]

Did you try older builds?

https://www.curseforge.com/minecraft/mc-mods/unionlib/files/all?page=1&pageSize=20&version=1.21.1&gameVersionTypeId=1

[PlvsVltra]

Trying it right now 👍

Just gotta go back a few versions ;-;

[PlvsVltra]

found another fix - in 1.20.1 there is another controller support mod made by mr crayfish

i will respond to this after i try it

[PlvsVltra]

ok, so you just have to go back to 1.20.1 to install the mrcrayfish controller support mod and everything will work perfectly