Moonlight Core Mod acts as a unified bridge across multiple mod loaders so dependent mods can share tools without loader issues. However, if the library is missing or placed into a profile running a different mod loader than the file expects, Minecraft will stop before reaching the main menu.
Understanding Missing Dependency Screens
When you launch a profile containing a mod that relies on Moonlight Core Mod without having the library present, the game will prevent you from entering worlds. Instead, your mod loader displays a diagnostic screen stating that a required base mod is missing.
1. Read the listed mod names on the warning screen to identify which project requires Moonlight Core Mod.
2. Close the game window cleanly.
3. Place Moonlight Core Mod into the same mods folder as the mod asking for it, then launch the game again.
Resolving Loader Mismatches
Because Moonlight Core Mod supports projects built across different mod loaders, mixing files meant for separate setups in one folder keeps the background bridge from starting:
1. Open your launcher profile settings and check which mod loader that instance uses.
2. Open your mods folder and inspect both Moonlight Core Mod and the mods relying on it.
3. Ensure every file in that folder matches your profile's active mod loader before relaunching.