I had a few problems making the mod,
Who can help me with the answer?🤔

The first question is: net.minecraft.client.renderer.block.model.ModelBlockDefinition$MissingVariantException

The second question is: java.lang.IllegalArgumentException

The third question is: java.io.FileNotFoundException: itnt:models/item/tnt_ball.json(My ModID is: itnt)

The file path is: zzzz.itnt.itnt.java

package zzzz.itnt;

import net.minecraft.init.Blocks;
import net.minecraftforge.fml.common.Mod;
import net.minecraftforge.fml.common.Mod.EventHandler;
import net.minecraftforge.fml.common.event.FMLInitializationEvent;
import net.minecraftforge.fml.common.event.FMLPreInitializationEvent;
import org.apache.logging.log4j.Logger;

@Mod(modid = itnt.MODID, name = itnt.NAME, version = itnt.VERSION, acceptedMinecraftVersions = "[1.12,1.13)")
public class itnt
{
    public static final String MODID = "itnt";
    public static final String NAME = "Ikun tnt";
    public static final String VERSION = "1.0";

    private static Logger logger;

    @EventHandler
    public void preInit(FMLPreInitializationEvent event)
    {
        logger = event.getModLog();
    }

    @EventHandler
    public void init(FMLInitializationEvent event)
    {
        // some example code
        logger.info("DIRT BLOCK >> {}", Blocks.DIRT.getRegistryName());
    }
}

The file path is: zzzz.itnt.item.tntBall.java

package zzzz.itnt.item;

import net.minecraft.item.Item;
import zzzz.itnt.itnt;

public class tntBall extends Item {
    public tntBall()
    {
        this.setUnlocalizedName(itnt.MODID+".dirtball");
        this.setRegistryName("dirt_ball");
        this.setMaxStackSize(16);
    }
}

The file path is: zzzz.itnt.item.ItemRegistryHandler.java

package zzzz.itnt.item;

import net.minecraft.client.renderer.block.model.ModelResourceLocation;
import net.minecraft.item.Item;
import net.minecraftforge.client.event.ModelRegistryEvent;
import net.minecraftforge.client.model.ModelLoader;
import net.minecraftforge.fml.common.Mod;
import net.minecraftforge.fml.common.eventhandler.SubscribeEvent;
import net.minecraftforge.event.RegistryEvent.Register;
import net.minecraftforge.fml.relauncher.Side;
import net.minecraftforge.fml.relauncher.SideOnly;
import net.minecraftforge.registries.IForgeRegistry;

@Mod.EventBusSubscriber
public class ItemRegistryHandler
{
    public static final tntBall TNT_BALL = new tntBall();

    @SubscribeEvent
    public static void onRegistry(Register<Item> event)
    {
        IForgeRegistry<Item> registry = event.getRegistry();
        registry.register(TNT_BALL);
    }

    @SubscribeEvent
    @SideOnly(Side.CLIENT)
    public static void onModelRegistery(ModelRegistryEvent event)
    {
        ModelLoader.setCustomModelResourceLocation(TNT_BALL,0,
                new ModelResourceLocation(TNT_BALL.getRegistryName(),"inventory"));
    }
}

And in the resources folder have:

resource\

    assets\

        itnt\

            lang\

                 en_us.lang

                 zh_cn.lang

            models\

                  item\

                          tnt_ball.json

                          (The tnt_ball.json code:

{
    "parent": "item/generated",
    "textures": {
        "layer0": "dirtgy:items/dirtball"
    }
}

)

            textures\

                  items\

                           tnt_ball.png

     mcmod.info

     pack.mcmeta

     (The mcmod.info code:

[
{
  "modid": "Itnt",
  "name": "Ikun tnt",
  "description": "Ikun tnt mod",
  "version": "${version}",
  "mcversion": "${mcversion}",
  "url": "",
  "updateUrl": "",
  "authorList": ["zzzz"],
  "credits": "Ikun tnt, zzzz",
  "logoFile": "",
  "screenshots": [],
  "dependencies": []
}
]

),

(The pack.mcmeta code:

{
    "pack": {
        "pack_format": 3,
        "description": "Ikun tnt resources"
    }
}

)

This is the code I wrote, who can help me to see where the problem?

 

Minecraft Versions Below LTS (Long Term Support) (1.18.2) Is For Support,

Your Version Is below 1.13,  Its Out Of Support!

Edited January 8, 20232 yr by LakshyaK2011