FOSS gamedev and creative worlds

Posted: **Thu Apr 07, 2016 18:50**

I banged out a mod for my Noob Academy server which enables leather and leather crafting. Here is the code:

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Code: Select all: minetest.register_craftitem("mobs:leather", { description = "Leather", inventory_image = "mobs_leather.png", }) minetest.register_craft({ output = "mobs:leather", recipe = { {"farming:string", "farming:string", "farming:string"}, {"farming:string", "default:mese_crystal", "farming:string"}, {"farming:string", "farming:string", "farming:string"}, }, })

Here is the error it gives me:

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Code: Select all: 2016-04-07 13:49:24: ERROR[main]: ========== ERROR FROM LUA =========== 2016-04-07 13:49:24: ERROR[main]: Failed to load and run script from 2016-04-07 13:49:24: ERROR[main]: /home/user/.minetest/mods/leather_craft/init.lua: 2016-04-07 13:49:24: ERROR[main]: /usr/share/minetest/builtin/game/register.lua:60: Name mobs:leather does not follow naming conventions: "modname:" or ":" prefix required 2016-04-07 13:49:24: ERROR[main]: stack traceback: 2016-04-07 13:49:24: ERROR[main]: [C]: in function 'error' 2016-04-07 13:49:24: ERROR[main]: /usr/share/minetest/builtin/game/register.lua:60: in function 'check_modname_prefix' 2016-04-07 13:49:24: ERROR[main]: /usr/share/minetest/builtin/game/register.lua:98: in function 'register_item' 2016-04-07 13:49:24: ERROR[main]: /usr/share/minetest/builtin/game/register.lua:177: in function 'register_craftitem' 2016-04-07 13:49:24: ERROR[main]: /home/user/.minetest/mods/leather_craft/init.lua:1: in main chunk 2016-04-07 13:49:24: ERROR[main]: ======= END OF ERROR FROM LUA ======== 2016-04-07 13:49:24: ERROR[main]: Server: Failed to load and run /home/user/.minetest/mods/leather_craft/init.lua 2016-04-07 13:49:24: ERROR[main]: ModError: ModError: Failed to load and run /home/user/.minetest/mods/leather_craft/init.lua 2016-04-07 13:49:24: ERROR[main]: Error from Lua: 2016-04-07 13:49:24: ERROR[main]: /usr/share/minetest/builtin/game/register.lua:60: Name mobs:leather does not follow naming conventions: "modname:" or ":" prefix required 2016-04-07 13:49:24: ERROR[main]: stack traceback: 2016-04-07 13:49:24: ERROR[main]: [C]: in function 'error' 2016-04-07 13:49:24: ERROR[main]: /usr/share/minetest/builtin/game/register.lua:60: in function 'check_modname_prefix' 2016-04-07 13:49:24: ERROR[main]: /usr/share/minetest/builtin/game/register.lua:98: in function 'register_item' 2016-04-07 13:49:24: ERROR[main]: /usr/share/minetest/builtin/game/register.lua:177: in function 'register_craftitem' 2016-04-07 13:49:24: ERROR[main]: /home/user/.minetest/mods/leather_craft/init.lua:1: in main chunk 2016-04-07 13:49:24: ERROR[main]: Check debug.txt for details.

Posted: **Thu Apr 07, 2016 18:57**

When you define an item, its name needs to be in the form modname:item where modname is the name of the current mod. You are not in the mobs mod, so you cannot define an item called mobs:leather in that way.

Solution: Renaming the item name to be of the form modname:item.

Alternatively: If you are overriding an item, or you need to make the name mobs:leather, then use :mobs:leather in register_craftitem. Prepending a colon like that disabled the valid name check. (minetest.register_craftitem("mobs:leather", {}))

Posted: **Thu Apr 07, 2016 22:03**

rubenwardy wrote:When you define an item, its name needs to be in the form modname:item where modname is the name of the current mod. You are not in the mobs mod, so you cannot define an item called mobs:leather in that way.

Solution: Renaming the item name to be of the form modname:item.

Alternatively: If you are overriding an item, or you need to make the name mobs:leather, then use :mobs:leather in register_craftitem. Prepending a colon like that disabled the valid name check. (minetest.register_craftitem("mobs:leather", {}))

Thanks! It works now.

FOSS gamedev and creative worlds

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