Made a block, copies exactly the soul campfire.

But when I start Minecraft, it starts, and right before it goes into full screen, it errors out.

That's when I get 2 of these:

Caused by: java.lang.IllegalArgumentException: Cannot get property BooleanProperty{name=lit, clazz=class java.lang.Boolean, values=[true, false]} as it does not exist in Block{minecraft:air}

And 2 of these:

Caused by: java.lang.NullPointerException: Registry Object not present: revive:block_campfire

 

Thanks!

Can you post your ModBlocks class where you've registered the block, as well as which version of Minecraft you are using?

Oh yea, 1.20.6

forge 50.0.5

package net.Red4X.Revive;

import net.minecraft.world.item.BlockItem;
import net.minecraft.world.item.Item;
import net.minecraft.world.level.block.Block;
import net.minecraft.world.level.block.Blocks;
import net.minecraft.world.level.block.state.BlockBehaviour;
import net.minecraft.world.level.block.state.BlockState;
import net.minecraft.world.level.block.state.properties.BlockStateProperties;
import net.minecraft.world.level.block.state.properties.BooleanProperty;
import net.minecraftforge.eventbus.api.IEventBus;
import net.minecraftforge.registries.DeferredRegister;
import net.minecraftforge.registries.ForgeRegistries;
import net.minecraftforge.registries.RegistryObject;
import java.util.function.Supplier;

public class ModBlocks {

    public static final DeferredRegister<Block> BLOCKS =
            DeferredRegister.create(ForgeRegistries.BLOCKS, TheRevival.MODID);

    public static final RegistryObject<Block> BLOCK_CAMPFIRE = registerBlock(
            () -> new Block(BlockBehaviour.Properties.ofFullCopy(Blocks.SOUL_CAMPFIRE)));

    private static <T extends Block> RegistryObject<T> registerBlock(Supplier<T> block) {
        RegistryObject<T> toReturn = BLOCKS.register("block_campfire", block);
        registerBlockItem(toReturn);
        return toReturn;
    }

    private static <T extends Block> RegistryObject<Item> registerBlockItem(RegistryObject<T> block) {
        return ModItems.ITEMS.register("block_campfire", () -> new BlockItem(block.get(), new Item.Properties()));
    }

    public static void register(IEventBus EventBus){
        BLOCKS.register(EventBus);
    }
}

 

Ah; you can't just copy the properties, you need to use the same block class as the soul campfire. 

Ok thanks.

Glad I could help.