if(!shop_items.len)
var/list/last = list()
for(var/item in subtypesof(/datum/shop_item))
var/datum/shop_item/I = new item()
if(!I.item)
continue
if(I.last) //error
last += I
continue
if(!shop_items[I.category])
shop_items[I.category] = list()
shop_items[I.category] += I
for(var/datum/shop_item/I in last)
if(!shop_items[I.category])
shop_items[I.category] = list()
shop_items[I.category] += I
Problem description:
shop\shop_item.dm:17:error: I.last: undefined var
BUT THE VAR IS RIGHT THERE, the code is inside a proc*, and i have another code that is the SAME code and has no errors