tried using the example code from the example code, kept getting this error
from the looks of it seems to work fine and dandy for 1.21 players so i dont know what the issue could be

yes i have all the modeling stuff installed
yes nobody else in the issue tracker seems to have this error

update: i have found out there is no kjs integration for 1.20.1
that would be cool

you don't need kjs to add infinity cell in 1.20.1. they can be added by extendedae's config.

Could you tell me how to do that? I am running version 1.20-1.1.11-forge. I just looked in the configs folder of my instance and couldn't find a config for extendedae. My appologies for the inconvinience.