what does theis mean? what did i do?

Game Modding | Call of Duty: Black Ops 3 | General Discussion

ModmeBot:

Thread By: greatbrendini
ASSERTBEGIN -------------------------------------------------------------------
(WindingAreaWithKnownNormal( wInner, plane ) <= 0)

C:\Program Files (x86)\Steam\SteamApps\SteamApps\common\Call of Duty Black Ops III\bin\cod2map64.exe
q:\t7\pc\code\tools\cod2map\tris_mergeconcave.cpp:454
ASSERTEND ---------------------------------------------------------------------

xReaction:

getting this error in 2021...

xReaction:

there was geo inside skybox, thats how to fix it :)