Run Minecraft with Forge installed at least once to generate the necessary files and folders.
The very first thing to do is make certain you installed Minecraft Forge.
Note: With this mod may require other mods to work see details below. You must install Minecraft Forge first, in order to use this mod. Instructions for installing Custom NPCs Mod 1.15.2|1.12.2 step by step: We don’t modify or edit the files in any way! The download links have been updated every 3 times, which means you can always get the last version! If you have any issues, please make a comment below, and we will help you. You have to install Minecraft forge very first to use this mod. Custom NPCs Mod 1.15.2|1.12.2 makes use of the modding API. Custom NPCs Mod 1.15.2|1.12.2 Download Links.