Over 20+ other mods require GeckoLib to run.
Download the appropriate GeckoLib jar file from reputable sources such as CurseForge or Modrinth . Download Geckolib (Important) Here
Which are you using (Fabric, Forge, or NeoForge)? Over 20+ other mods require GeckoLib to run
If a mod asks for GeckoLib, it will likely not function (or crash the game) without it. Download Geckolib (Important) Here
Allows for custom mobs to have smooth animations that are impossible with vanilla Minecraft systems.
Once I know this, I can tell you exactly which version of GeckoLib to download. GeckoLib - Minecraft Mods - CurseForge