You followed the steps, but the mod isn't showing up. Here are the most common failure modes.
Install Forge 1.12.2
Locate the Minecraft mods folder
Add fapcraftmodv11forge1122.jar
Verify dependencies
Start Minecraft with Forge
Test the mod
Troubleshooting
A: Simply delete fapcraftmodv11forge1122jar from your mods folder. No registry cleaners needed. file name fapcraftmodv11forge1122jar install
If you have not already installed Forge for 1.12.2: