my suggestion is to search the actual game files for the corresponding directory and file names. I've seen one too many SDCaffiene mod packs go down this path either because of a simple typo or directory misplacement such as
@godreborn stated. Also I know this doesn't apply to SdCaffiene but I suggest always using the digital version of the game for modding because it allows access to the 00050000 directory of the game and not just the update allowing for more hands on file research to the game itself