i've created a custom mod pack and no matter what i do i cant seem to get NEI to work, every time i run it this comes up.
im using the 1.5.2 client and have tried using both the 1.5.1 version and the 1.6.2 that she has up on her thread but cant get either to work and i don't know what to do so any help appreciated.. NEI is like a MUST for minecraft XD