So the mod file goes into the mods directory, done. From what I think all the thing are in the correct place but when i go in game and try to do anything I get error messages and blank gray menus. I wanted to ask if any of the prominent modders had these problems before and if so how did you get pass them. When I try to open the structure tree:     When I try to play a match:   Civ Json file: bact.json Unique techs: cavalr