I think that was the issue, but now with the latest update, or at least the second most recent one, there are changes to the mutation categories. Itâs looking for threshold_mut regarding the Tortoise mutation.
Error: data/mods//Mutation_Changes/mutation_category.json: line 2:5: member not found: threshold_mut
[
{
^
âtypeâ : âmutation_categoryâ,
âidâ : âmutation_tortoiseâ,
FUNCTION : bool main_menu:new_character_tab()
FILE : src/main_menu.cpp
LINE : 638
Looking at the base mutation_category.json file for the normal data/json directory, there has to be instead of âcategoryâ : âTORTOISEâ, it should be âthreshold_mutâ : âTHRESH_TORTOISEâ, because several mutations are looking for the THRESH_TORTOISE flag such as the grazer mutation. Iâll check and edit this post to see if changing the line of âcategoryâ : âTORTOISEâ works or not.
edit: found the fix. You need to replace âcategoryâ : âTORTOISEâ with âthreshold_mutâ : âTHRESH_TORTOISEâ and then do the same with the Chimera entry, with itâs âthreshold_mutâ entry being âTHRESH_CHIMERAâ and that should allow the game to load. Also, make sure the entry for Chimeraâs id is CHIMERA, like Tortoiseâs id should be âTORTOISEâ since the mutations.json file in the mod folder is still using that for the category. ctrl+f tortoise in the modâs mutations.json file will show the category being âTORTOISEâ and not what the previous entry was. The world loads up with no errors at this point.
