I've added ForgedCarpet to my mods folder, I am using the FTB Direwolf20 1.12.2 Modpack from the Curseforge Overwolf Launcher, I've added Optifine, VeinMiner, TorchMaster, and Tinker's Construct Tool Leveling mods to the modpack (in case any of these mods are causing some sort of conflict with the ForgedCarpet mod)
Without ForgedCarpet, the game works fine and I can join or create any single-player world, or join any server, but with the mod installed, the game crashes to the launcher whenever I create a new world or load into a world I made earlier, The launcher gives me this info:

The game crashed whilst exception in server tick loop
Error: java.lang.NoSuchFieldError: lightingEngine
Exit Code: -1

And this is the full crash report:

https://pastebin.com/vJeDP0D7

Adding to this, I have tracked it down to the problem being incompatibility with phosphor.
**Correction: Phosphor is one of the compatibility issues, there seems to be more.

Issue with phosphor should be fixed in the next release, i decided to remove newLight as that already exists in MUP and i believe phosphor too is a light engine optimization...so there's no need of having duplicates.

Closed with 7572da0