MTLib Mod 1.12.2/1.11.2/1.10.2 is a core mod jaredlll08 that is used to support other mod can work effectively. This is the reason why this mod gets a lot of favor from users around the world. In the fact that it can maximumly save the resources and support many mods at once.
Because of being the core mod, it will not have any effect when the individual installed into Minecraft. The mods that are supported by it usually use the same code structure. So to reduce the file size, save more time, and optimize everything, jaredlll08 merged this code into this mod. To avoid the errors in-game, please install this mod first.
If you want to use the MTLib mod, please make sure Minecraft Forge is available on your devices for this mod can work effectively. Hope you will have a wonderful time when using this mod in the future. Good luck to you!