For a while now I have been following a tutorial on YouTube for DataGen that I am using for my mod. I have come across an error that I wanted to check on here before acting on anything that could mess up my progress.

The error is as follows:

Caused by: java.lang.IllegalStateException: No way of obtaining recipe droidsancientrelics:lemon_juice

Curiously, It has worked fine with the "orange_juice" item but not the "lemon_juice," even though their code is the same.

I am basically just reposting the same thing as before, though I am yet to get a reply. 

Video link for reference.

 

PLEASE HELP!!!!

Can you post your recipe generation class? You might have forgotten to add the advancement trigger, that part is a bit tricky.

Here! 

public class ModRecipeProvider extends RecipeProvider implements IConditionBuilder {

    public ModRecipeProvider(PackOutput pOutput) {
        super(pOutput);
    }

    @Override
    protected void buildRecipes(Consumer<FinishedRecipe> pWriter) {

        ShapedRecipeBuilder.shaped(RecipeCategory.MISC, ModBlocks.PLACEHOLDER_BLOCK.get())
                .pattern("SSS")
                .pattern("SSS")
                .pattern("SSS")
                .define('S', ModItems.PLACEHOLDER_ITEM.get())
                .unlockedBy(getHasName(ModItems.PLACEHOLDER_ITEM.get()), has(ModItems.PLACEHOLDER_ITEM.get()))
                .save(pWriter);

        ShapelessRecipeBuilder.shapeless(RecipeCategory.MISC, ModItems.LEMON_JUICE.get(), 4)
                .requires(ModItems.LEMON.get())
                .requires(Items.GLASS_BOTTLE, 4)
                .save(pWriter);

        ShapelessRecipeBuilder.shapeless(RecipeCategory.MISC, ModItems.ORANGE_JUICE.get(), 4)
                .requires(ModItems.ORANGE.get())
                .requires(Items.GLASS_BOTTLE, 4)
                .save(pWriter);
    }
    protected static void oreSmelting(Consumer<FinishedRecipe> pFinishedRecipeConsumer, List<ItemLike> pIngredients, RecipeCategory pCategory, ItemLike pResult, float pExperience, int pCookingTIme, String pGroup) {
        oreCooking(pFinishedRecipeConsumer, RecipeSerializer.SMELTING_RECIPE, pIngredients, pCategory, pResult, pExperience, pCookingTIme, pGroup, "_from_smelting");
    }

    protected static void oreBlasting(Consumer<FinishedRecipe> pFinishedRecipeConsumer, List<ItemLike> pIngredients, RecipeCategory pCategory, ItemLike pResult, float pExperience, int pCookingTime, String pGroup) {
        oreCooking(pFinishedRecipeConsumer, RecipeSerializer.BLASTING_RECIPE, pIngredients, pCategory, pResult, pExperience, pCookingTime, pGroup, "_from_blasting");
    }

    protected static void oreCooking(Consumer<FinishedRecipe> pFinishedRecipeConsumer, RecipeSerializer<? extends AbstractCookingRecipe> pCookingSerializer, List<ItemLike> pIngredients, RecipeCategory pCategory, ItemLike pResult, float pExperience, int pCookingTime, String pGroup, String pRecipeName) {
        for(ItemLike itemlike : pIngredients) {
            SimpleCookingRecipeBuilder.generic(Ingredient.of(itemlike),
                    pCategory, pResult, pExperience,
                    pCookingTime, pCookingSerializer).group(pGroup).unlockedBy(getHasName(itemlike), has(itemlike)).save(pFinishedRecipeConsumer, DroidsAncientRelics.MOD_ID + ":" + getItemName(pResult) + pRecipeName + "_" + getItemName(itemlike));
        }

    }
}

(The smelting, blasting and cooking are going unused for now).

 

I have just realised that inside the recipe import there is a star, would this be because the original .json file is deleted?

import net.minecraft.data.recipes.*;

 

The star just means "import everything from this module", that's normal. Try adding unlockedBy triggers for your two juice recipes, like you have with the block. That will probably fix the problem.

Thank you again for the help! I should probably improve on inspecting my code more before asking questions here... 😅

I have tried what you have said and it has worked, thank you for your help!