My recipe data generator doesn't work

[Kiwilis]

Hi, as the title says, my recipe generator doesn't work. Everytime I try to run it, it gives me this error:

Caused by: java.lang.NullPointerException: Cannot invoke "net.minecraft.world.item.CreativeModeTab.getRecipeFolderName()" because the return value of "net.minecraft.world.item.Item.getItemCategory()" is null
    at TRANSFORMER/[email protected]/net.minecraft.data.recipes.ShapedRecipeBuilder.save(ShapedRecipeBuilder.java:94)
    at TRANSFORMER/[email protected]/net.minecraft.data.recipes.RecipeBuilder.save(RecipeBuilder.java:21)
    at TRANSFORMER/[email protected]/kiwilis.simpleautomation.datagen.Recipes.buildCraftingRecipes(Recipes.java:20)
    at TRANSFORMER/[email protected]/net.minecraft.data.recipes.RecipeProvider.run(RecipeProvider.java:97)
    at TRANSFORMER/[email protected]/net.minecraft.data.DataGenerator.run(DataGenerator.java:44)
    at TRANSFORMER/[email protected]/net.minecraftforge.forge.event.lifecycle.GatherDataEvent$DataGeneratorConfig.lambda$runAll$0(GatherDataEvent.java:112)
    at MC-BOOTSTRAP/[email protected]/cpw.mods.modlauncher.api.LamdbaExceptionUtils.lambda$rethrowConsumer$0(LamdbaExceptionUtils.java:34)
    at java.base/java.util.HashMap$Values.forEach(HashMap.java:1067)
    at TRANSFORMER/[email protected]/net.minecraftforge.forge.event.lifecycle.GatherDataEvent$DataGeneratorConfig.runAll(GatherDataEvent.java:108)
    at TRANSFORMER/[email protected]/net.minecraftforge.fmllegacy.DatagenModLoader.begin(DatagenModLoader.java:59)
    at TRANSFORMER/[email protected]/net.minecraft.data.Main.main(Main.java:65)
    ... 13 more

Log: https://www.toptal.com/developers/hastebin/kafuhaxoya.yaml

My recipe generator class: https://www.toptal.com/developers/hastebin/ulaqajopat.less

[Kiwilis]

I still don't know what's going on

[Kiwilis]

Yes, i also realized that, but where does this method get called from and why does a get() function return null?

[Kiwilis]

Thanks!

[Kiwilis]

I still can't figure what's happening. Apparently ShapedRecipeBuilder.save() tries to run this.result.getItemCategory(), but this.result is null, but shoudn't this.result already be defined by ShapedRecipeBuilder.shaped()?

[Kiwilis]

Certain parts or just all of it?

[Luis_ST]

if you have a git repo post a link to it, if not post the relevant classes

[Kiwilis]

https://github.com/Kiwilis/simple-automation

There's not much there yet, because this project isn't even a week old and I don't have a lot of time to work on it.

[Kiwilis]

Thanks!