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Warning with JEI from Recipe class (probably)

Mr Bonobo
in Modder Support

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Posted

Hello,

Should I be worried if I get this warning?

[03:28:11] [Render thread/WARN] [minecraft/ClientRecipeBook]: Unknown recipe category: [!!!com.mojang.logging.LogUtils$1ToString@479f738a=>java.lang.NullPointerException:Cannot invoke "Object.toString()" because the return value of "java.util.function.Supplier.get()" is null!!!]/quantum_world:energy_generated_from_energium_block
I think its because I return ItemStack.EMPTY on getResultItem(), though vanilla game does the same thing.

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