Help with Custom Blocks | The Fabric Project | Page 1

winter token Jan 16, 2026, 2:16 AM

#

Hello everyone. So i am very new to Java and Javascript and I am trying to learn how to code by making my own mod. I managed to get custom items but when I tried to maker custom blocks it would not show in game but didnt give any errors in IntelliJ. I can show the code if needed, but what does it mean if you dont have any critical errors in the code but no blocks show up, even by using the /give command?

tidal elm Jan 16, 2026, 2:20 AM

#

It sounds like you didn't register an item for your block

winter token Jan 16, 2026, 2:20 AM

#

I used the register one in the ModBlocks but it didnt workj

tidal elm Jan 16, 2026, 2:20 AM

#

Does your block show up with /setblock?

winter token Jan 16, 2026, 2:20 AM

#

it doesnt even show up in give

tidal elm Jan 16, 2026, 2:20 AM

#

Yes but did you try setblock?

winter token Jan 16, 2026, 2:21 AM

#

want me to send the code for the ModBlocks file? Lemme check the place rq

tidal elm Jan 16, 2026, 2:21 AM

#

winter token I used the register one in the ModBlocks but it didnt workj

Does that register an item?

winter token Jan 16, 2026, 2:21 AM

#

I could be very wrong in how i coded it. But there werent any errors on my end. Only small stuff but nothing red

tidal elm Jan 16, 2026, 2:22 AM

#

tidal elm Yes but did you try setblock?

^ can you check this first

winter token Jan 16, 2026, 2:22 AM

#

Okay so yeah, your right. It does appear in the setblock

#

but not in the give command

tidal elm Jan 16, 2026, 2:23 AM

#

Okay yeah you don't have an item for your block

#

Everything in the inventory is technically an item, not a block

#

So most blocks have an associated item

#

but this isn't created automatically

#

So you need to do that part

winter token Jan 16, 2026, 2:23 AM

#

i thought i did that in the ModBlocks file

tidal elm Jan 16, 2026, 2:24 AM

#

You registered an item in ModBlocks?

#

Okay now show the code then

winter token Jan 16, 2026, 2:24 AM

#


import com.renegade.TimeAgain;
import net.fabricmc.fabric.api.item.v1.FabricItemSettings;
import net.fabricmc.fabric.api.object.builder.v1.block.FabricBlockSettings;
import net.minecraft.core.Registry;
import net.minecraft.core.registries.BuiltInRegistries;
import net.minecraft.core.registries.Registries;
import net.minecraft.resources.ResourceKey;
import net.minecraft.resources.ResourceLocation;
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.SoundType;

import java.sql.Time;
public class ModBlocks {

    public static final Block TIME_STONE = registerBlock("time_stone",
            new Block(FabricBlockSettings.copyOf(Blocks.STONE).sounds(SoundType.METAL)));

    private static Block registerBlock(String name, Block block) {
        return Registry.register(BuiltInRegistries.BLOCK, ResourceKey.create(Registries.BLOCK, new ResourceLocation(TimeAgain.MOD_ID, name)), block);
    }

    private static Item registerBlockItem(String name, Block block) {
        return Registry.register(BuiltInRegistries.ITEM, ResourceKey.create(Registries.ITEM, new ResourceLocation(TimeAgain.MOD_ID, name)),
                new BlockItem(block, new FabricItemSettings()));
    }
    public static void registerModBlocks() {
        TimeAgain.LOGGER.info("Registering Mod Blocks for " + TimeAgain.MOD_ID);
    }
}

#

thats in modblocks

tidal elm Jan 16, 2026, 2:24 AM

#

Where did you call registerBlockItem?

winter token Jan 16, 2026, 2:25 AM

#

that could be the reason, i added this to the .java file

#


import com.renegade.block.ModBlocks;
import com.renegade.item.ModItemGroups;
import com.renegade.item.ModItems;
import net.fabricmc.api.ModInitializer;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

public class TimeAgain implements ModInitializer {
    public static final String MOD_ID = "time-again";
    public static final Logger LOGGER = LoggerFactory.getLogger(MOD_ID);

    @Override
    public void onInitialize() {
        ModItems.registerModItems();
        ModItemGroups.registerItemGroups();
        ModBlocks.registerModBlocks();
    }
}```

#

was i supposed to add another register for blockitem?

tidal elm Jan 16, 2026, 2:26 AM

#

Yes otherwise the code never runs

#

although usually that goes in the items class

winter token Jan 16, 2026, 2:26 AM

#

which part should go in the items class?

tidal elm Jan 16, 2026, 2:26 AM

#

registering the blockitem

winter token Jan 16, 2026, 2:27 AM

#

so which part of the first code that i sent should be in ModItems?

tidal elm Jan 16, 2026, 2:27 AM

#

the registerBlockItem function

#

and then you register a new item using that function and your block

winter token Jan 16, 2026, 2:28 AM

#

so should it be ModItems.registerBlockItem?

tidal elm Jan 16, 2026, 2:28 AM

#

Yeah

#

It's not required but it's better for organization I'd say

winter token Jan 16, 2026, 2:28 AM

#

why would that go in the ModItems class and not the main class?

tidal elm Jan 16, 2026, 2:28 AM

#

Because it deals with items

winter token Jan 16, 2026, 2:28 AM

#

ahhh

#

would it be easier for you to see it in vc

tidal elm Jan 16, 2026, 2:31 AM

#

I can't vc right now

winter token Jan 16, 2026, 2:33 AM

#

okay, well i tried adding it to the ModItems using the public void onInitialize but it doesnt seem to work

tidal elm Jan 16, 2026, 2:33 AM

#

Show your moditems?

winter token Jan 16, 2026, 2:34 AM

#


import com.renegade.TimeAgain;
import net.minecraft.core.Registry;
import net.minecraft.core.registries.BuiltInRegistries;
import net.minecraft.core.registries.Registries;
import net.minecraft.resources.ResourceKey;
import net.minecraft.resources.ResourceLocation;
import net.minecraft.world.item.Item;
import org.intellij.lang.annotations.Identifier;
@Override
public void onInitialize() {
    ModItems.registerBlockItem
}
public class ModItems {
    public static final Item ASTRO_LAB = registerItem("astro_lab", new Item(new Item.Properties()));
    public static final Item CODE_BREAKER = registerItem("code_breaker", new Item(new Item.Properties()));
    public static final Item CHRONODIAL = registerItem("chronodial", new Item(new Item.Properties()));
    public static final Item DIM_CRACKER = registerItem("dim_cracker", new Item(new Item.Properties()));
    public static final Item DIMENSION_SHIFTER = registerItem("dimension_shifter", new Item(new Item.Properties()));
    public static final Item FREQUENCY_MODULATOR = registerItem("frequency_modulator", new Item(new Item.Properties()));
    public static final Item STAR_PHASER = registerItem("star_phased", new Item(new Item.Properties()));
    public static final Item TIME_PHASE_ARRAY = registerItem("time_phase_array", new Item(new Item.Properties()));
    public static final Item TIME_ANOMALY = registerItem("time_anomaly", new Item(new Item.Properties()));
    public static final Item TIME_ANOMALY_ANALYZER = registerItem("time_anomaly_analyzer", new Item(new Item.Properties()));

    private static Item registerItem(String name, Item item) {
        return Registry.register(BuiltInRegistries.ITEM, ResourceKey.create(Registries.ITEM, new ResourceLocation(TimeAgain.MOD_ID, name)), item);
    }

    public static void registerModItems() {
        TimeAgain.LOGGER.info("Registering Mod Items for " + TimeAgain.MOD_ID);
    }
}```

tidal elm Jan 16, 2026, 2:35 AM

#

You just need to register your blockitem

winter token Jan 16, 2026, 2:35 AM

#

if im way off im sorry in advance i really am trying looll

#

you mean through the private static ?

tidal elm Jan 16, 2026, 2:36 AM

#

Oh wait why do you have a method outside the class

winter token Jan 16, 2026, 2:36 AM

#

whatcha mean?

tidal elm Jan 16, 2026, 2:37 AM

#

onInitialize seems to be outside ModItems

winter token Jan 16, 2026, 2:37 AM

#

it is?

#

Cause i have an onInitialize in the timeagain class where i registered the others

#


import com.renegade.block.ModBlocks;
import com.renegade.item.ModItemGroups;
import com.renegade.item.ModItems;
import net.fabricmc.api.ModInitializer;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

public class TimeAgain implements ModInitializer {
    public static final String MOD_ID = "time-again";
    public static final Logger LOGGER = LoggerFactory.getLogger(MOD_ID);

    @Override
    public void onInitialize() {
        ModItems.registerModItems();
        ModItemGroups.registerItemGroups();
        ModBlocks.registerModBlocks();
        ModItems.registerBlockItem();

    }
}```

tidal elm Jan 16, 2026, 2:38 AM

#

That one's fine

#

I'm talking about the one in your ModItems file

winter token Jan 16, 2026, 2:38 AM

#

ohh i added that when you said i needed to add BlockItem

#

I deleted it but im just trying to figure out how to do what you asked

tidal elm Jan 16, 2026, 2:38 AM

#

I meant move the function registerBlockItem from ModBlocks to ModItems

#

so it's after registerItem

winter token Jan 16, 2026, 2:39 AM

#

this one? private static Item registerBlockItem(String name, Block block) { return Registry.register(BuiltInRegistries.ITEM, ResourceKey.create(Registries.ITEM, new ResourceLocation(TimeAgain.MOD_ID, name)), new BlockItem(block, new FabricItemSettings())); }

tidal elm Jan 16, 2026, 2:39 AM

#

Yep that whole thing

winter token Jan 16, 2026, 2:39 AM

#

why wouldnt it be called in the ModBlocks?

tidal elm Jan 16, 2026, 2:40 AM

#

Because it creates an item and items usually go in the items class

winter token Jan 16, 2026, 2:40 AM

#

So anything that registers an Item goes in the ModItems class?

tidal elm Jan 16, 2026, 2:40 AM

#

Typically

winter token Jan 16, 2026, 2:40 AM

#

Even if it is in regard to a block?:

tidal elm Jan 16, 2026, 2:40 AM

#

Yes

#

At least that's how I've seen it

winter token Jan 16, 2026, 2:41 AM

#

lets hope it works

tidal elm Jan 16, 2026, 2:41 AM

#

but if you really want you can put the item in your ModBlocks class

winter token Jan 16, 2026, 2:42 AM

#

i tried it, but when i tried the onInitialize it gave me an error

#

this error to be exact error: method registerBlockItem in class ModItems cannot be applied to given types; ModItems.registerBlockItem(); ^ required: String,Block found: no arguments reason: actual and formal argument lists differ in length

tidal elm Jan 16, 2026, 2:42 AM

#

You have to call it with your name and block as parameters

#

Where did you call it?

#

It should be called to create an Item field the same way registerItem is

winter token Jan 16, 2026, 2:43 AM

#

registerBlockItem(String name, Block block)

#

thats in the ModItems folder, is that what you mean?

tidal elm Jan 16, 2026, 2:44 AM

#

folder?

winter token Jan 16, 2026, 2:45 AM

#

what do you mean folder? do you wanna see the mod folder?

tidal elm Jan 16, 2026, 2:46 AM

#

What do you mean by ModItems folder? Isn't ModItems a file?

winter token Jan 16, 2026, 2:46 AM

#

it is yeah

#

heres the path

#

or this one if it helps java/com/renegade/item/ModItems.java

tidal elm Jan 16, 2026, 2:47 AM

#

winter token thats in the ModItems folder, is that what you mean?

Okay so you meant file here?

winter token Jan 16, 2026, 2:48 AM

#

Yeah mb

#

it was the ModItems.java class in the Items folder

tidal elm Jan 16, 2026, 2:49 AM

#

Ah ok got it

tidal elm Jan 16, 2026, 2:49 AM

#

winter token this error to be exact ```error: method registerBlockItem in class ModItems cann...

Where is this code?

winter token Jan 16, 2026, 2:50 AM

#

the error code? its in the TimeAgain.java

#

where the onInitialize is originally

#


import com.renegade.block.ModBlocks;
import com.renegade.item.ModItemGroups;
import com.renegade.item.ModItems;
import net.fabricmc.api.ModInitializer;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

public class TimeAgain implements ModInitializer {
    public static final String MOD_ID = "time-again";
    public static final Logger LOGGER = LoggerFactory.getLogger(MOD_ID);

    @Override
    public void onInitialize() {
        ModItems.registerModItems();
        ModItemGroups.registerItemGroups();
        ModBlocks.registerModBlocks();
        ModItems.registerBlockItem();
    }
}```

tidal elm Jan 16, 2026, 2:50 AM

#

Okay that's not how registerBlockItem is meant to be used

#

It's like registerItem

winter token Jan 16, 2026, 2:51 AM

#

do you have an example on what you mean?

tidal elm Jan 16, 2026, 2:51 AM

#

You see how in ModItems each item is a field set to the result of registerItem?

winter token Jan 16, 2026, 2:51 AM

#

yeah

tidal elm Jan 16, 2026, 2:51 AM

#

You want to do the same but with registerBlockItem

#

and remove it from onInitialize

winter token Jan 16, 2026, 2:52 AM

#

so kinda like this? ``` public static final Item TIME_STONE = registerBlockItem("time-stone", new Item(new Item.Properties()));

tidal elm Jan 16, 2026, 2:52 AM

#

Yes except instead of new Item(new Item.Properties()), the second parameter should be your block

#

Since registerBlockItem expects Block as the second parameter

winter token Jan 16, 2026, 2:53 AM

#

so what should the syntax be instead? is it this new Item(block.Properties()));

tidal elm Jan 16, 2026, 2:54 AM

#

No, the way you access your block is ModBlocks.TIME_STONE

winter token Jan 16, 2026, 2:55 AM

#

what you mean by second parameter, you mean the new Item.Properties() part correct? or are you referring to another part?

tidal elm Jan 16, 2026, 2:56 AM

#

The second parameter to registerBlockItem is currently set to new Item(new Item.Properties()) but it should be ModBlocks.TIME_STONE

#

The first parameter is set to "time-stone"

winter token Jan 16, 2026, 2:57 AM

#

so you replace the current thing to ModBlocks.TIME_STONE

tidal elm Jan 16, 2026, 2:57 AM

#

Yeah

winter token Jan 16, 2026, 2:58 AM

#

``` like that?

tidal elm Jan 16, 2026, 2:58 AM

#

Yes

winter token Jan 16, 2026, 2:58 AM

#

ohhhh

tidal elm Jan 16, 2026, 2:58 AM

#

If you look at the definition of registerBlockItem it says the first parameter should be a String and the second parameter should be a Block
Since ModBlocks.TIME_STONE is a Block it can be used for that parameter, but new Item(...) is not a Block

winter token Jan 16, 2026, 2:59 AM

#

that makes so much more sense. So where would you go to read up on those definitions?

tidal elm Jan 16, 2026, 2:59 AM

#

Definitions?

#

Oh you can ctrl+click on an element to go to its definition

winter token Jan 16, 2026, 2:59 AM

#

ahh okay

#

let me test in game and see if it works

#

okay. so the block appeared in game, the textures just busted

#

so that part did work, it did register

tidal elm Jan 16, 2026, 3:00 AM

#

That's expected if you didn't define a model(s)

#

Wait were you following a tutorial for adding blocks an items? There should have been a section on block items

winter token Jan 16, 2026, 3:01 AM

#

i did? I have it undr the models/blocks folder

tidal elm Jan 16, 2026, 3:01 AM

#

Item model

winter token Jan 16, 2026, 3:01 AM

#

tidal elm Wait were you following a tutorial for adding blocks an items? There should have...

I was following a tutorial, but the method he used and a method another guy that helped me use was different

tidal elm Jan 16, 2026, 3:01 AM

#

I see

#

Well see if the tutorial has a section on item models

winter token Jan 16, 2026, 3:02 AM

#

cause i have one in the models/item folder

tidal elm Jan 16, 2026, 3:02 AM

#

Oh okay that should be correct

winter token Jan 16, 2026, 3:02 AM

#

this is whats in it

#

  "parent": "time-again:block/time_stone"
}```

tidal elm Jan 16, 2026, 3:03 AM

#

Yeah that sounds correct

winter token Jan 16, 2026, 3:03 AM

#

do i need to include another png in the item texture even if i have it in the block texture?

tidal elm Jan 16, 2026, 3:03 AM

#

Nope

#

What's the file name?

winter token Jan 16, 2026, 3:03 AM

#

time-stone

#

its time-stone.json

#

i also have it in the block model folder also

#

thats the part i copied from the tutorial\

tidal elm Jan 16, 2026, 3:04 AM

#

What's the name of the block model file?

winter token Jan 16, 2026, 3:05 AM

#

time-stone.json

tidal elm Jan 16, 2026, 3:05 AM

#

your hyphens and underscores are probably mismatched somewhere

#

I'd recommend making them all underscores

winter token Jan 16, 2026, 3:05 AM

#

i meanty time_stone.json, mb

#

its heres the full thing if you wanna see it

#

resources/assets/time-again/models/block/time_stone.json

tidal elm Jan 16, 2026, 3:06 AM

#

What does it look like in the menu? Is it a magenta and black square or a magenta and black cube?

winter token Jan 16, 2026, 3:07 AM

#

want a screenshot?

tidal elm Jan 16, 2026, 3:07 AM

#

Sure

winter token Jan 16, 2026, 3:07 AM

#

hey, so im sorry if im asking so many dumb questions. I only have the most bare bone experience with java. i know it was stupid to make a mod on minimal experience, and its probably annoying for you

tidal elm Jan 16, 2026, 3:08 AM

#

No it's fine this is part of the learning process

winter token Jan 16, 2026, 3:08 AM

#

i was told not to do it by a mod developer

tidal elm Jan 16, 2026, 3:08 AM

#

The only way to learn is to do

winter token Jan 16, 2026, 3:09 AM

#

tidal elm Jan 16, 2026, 3:09 AM

#

hm ok can you your latest.log via https://mclo.gs

mclo.gs - Paste, share & analyse your Minecraft logs

Easily paste your Minecraft logs to share and analyse them.

winter token Jan 16, 2026, 3:10 AM

#

not sure how to find those logs with this but let me check

tidal elm Jan 16, 2026, 3:10 AM

#

They're in run/logs

winter token Jan 16, 2026, 3:10 AM

#

okay so i sent it through mclo?

tidal elm Jan 16, 2026, 3:11 AM

#

It should give you a link you can send here

winter token Jan 16, 2026, 3:12 AM

#

it didnt give a link, it just posted it

tidal elm Jan 16, 2026, 3:12 AM

#

Did it change the url?

winter token Jan 16, 2026, 3:12 AM

#

https://mclo.gs/oXPHo56

mclo.gs

Fabric 1.20.1 Client Log [#oXPHo56]

147 lines | 1 error

tidal elm Jan 16, 2026, 3:12 AM

#

Ah yeah that's it

winter token Jan 16, 2026, 3:12 AM

#

okie\

#

the other texture based errors from the items besides time-stone are because i didnt make them yet, so thats why

tidal elm Jan 16, 2026, 3:13 AM

#

Huh it says it couldn't find models/item/time-stone.json

#

Did you restart/reload textures after adding it?

winter token Jan 16, 2026, 3:14 AM

#

yeah

#

ity was already there when i started it

#

#

proof that its there

tidal elm Jan 16, 2026, 3:15 AM

#

Ah it has an underscore but the item has a hyphen

#

Again I'd suggest using underscores everywhere

winter token Jan 16, 2026, 3:15 AM

#

where did i add that hyphen?

tidal elm Jan 16, 2026, 3:15 AM

#

In ModItems

#

"time-stone"

winter token Jan 16, 2026, 3:16 AM

#

ohhh

#

now i see it

#

lemme relog and see if it fixed

#

also, do you by chance happen to know any good tutorials for creating the inventory stuff for the items and blocks?

tidal elm Jan 16, 2026, 3:17 AM

#

As in the creative inventory tabs?

winter token Jan 16, 2026, 3:17 AM

#

yeah

#

the tutorial i found didnt have the same structure as the layout my friend taught me

tidal elm Jan 16, 2026, 3:18 AM

#

Well the principles should be the same, just where the code goes might be different

winter token Jan 16, 2026, 3:18 AM

#

the friend i used to help make the code for the items said that the tutorial i was watching was old and outdated

tidal elm Jan 16, 2026, 3:19 AM

#

Well the version you're on is pretty old so that's not unexpected tbh

winter token Jan 16, 2026, 3:19 AM

#

yeah

#

heres the video if you wanna see what i mean

#

Fabric Modding Tutorial - Minecraft 1.20: Custom Items & Creative Mode Tab | #2 by Modding by Kaupenjoe

tidal elm Jan 16, 2026, 3:22 AM

#

That sounds fine

#

I haven't seen the video but

winter token Jan 16, 2026, 3:22 AM

#

do you mind if i try it and come back here if it doesnt work?

tidal elm Jan 16, 2026, 3:22 AM

#

Sure

winter token Jan 16, 2026, 3:22 AM

#

or should i make a new thread

#

which do you prefer\

tidal elm Jan 16, 2026, 3:23 AM

#

This thread is fine

winter token Jan 16, 2026, 3:25 AM

#

apparently ItemGroup aint a thing

#

i tried to import it into the ModItemGroups.java and one doesnt exist

tidal elm Jan 16, 2026, 3:28 AM

#

Oh wait is the tutorial using yarn instead of mojmap?

#

Okay that is a bit of an issue

#

Do you know what mappings are?

winter token Jan 16, 2026, 3:29 AM

#

kinda

#

but apparently the friend of mine said that yarn wasnt being utilized in intelliJ anymore

tidal elm Jan 16, 2026, 3:29 AM

#

It should still be usable on versions <26.1

#

They didn't remove support for it or anything

winter token Jan 16, 2026, 3:29 AM

#

so what should i do?

tidal elm Jan 16, 2026, 3:30 AM

#

You can either use https://mappings.dev/ or https://linkie.shedaniel.dev/mappings to translate everything in the tutorial, or find a mojmap tutorial

mappings?

Goodbye obfuscation, we won't miss you!

Linkie

View mod dependencies; Search up mappings; All on your web browser instead!

winter token Jan 16, 2026, 3:31 AM

#

the mappings apparently came to an end

tidal elm Jan 16, 2026, 3:31 AM

#

in 26.1+ but they still exist for lower versions

winter token Jan 16, 2026, 3:31 AM

#

thats what the mappings website says

#

ius there a way to see which version im on now

tidal elm Jan 16, 2026, 3:32 AM

#

Should be in gradle.properties

winter token Jan 16, 2026, 3:32 AM

#

0.18.4

tidal elm Jan 16, 2026, 3:32 AM

#

minecraft_version not loader_version

winter token Jan 16, 2026, 3:32 AM

#

1.20.1

tidal elm Jan 16, 2026, 3:32 AM

#

Yep

#

Are you modding for a specific server or something that has to be on 1.20.1?

winter token Jan 16, 2026, 3:33 AM

#

something that has to be on 1.20.1

tidal elm Jan 16, 2026, 3:33 AM

#

Okay makes sense

winter token Jan 16, 2026, 3:33 AM

#

i dont know enough to try and model on anything other than .1

tidal elm Jan 16, 2026, 3:34 AM

#

Block/item models haven't changed much, item model overrides were replaced though

winter token Jan 16, 2026, 3:34 AM

#

so what should i do then?

#

which part of the mapping should i look at?

tidal elm Jan 16, 2026, 3:34 AM

#

When they use a class in the tutorial, look it up in the search (make sure it's labeled Yarn) then in the page look for the Mojang version

#

e.g. ItemGroup

winter token Jan 16, 2026, 3:35 AM

#

so i use that instead ?

tidal elm Jan 16, 2026, 3:35 AM

#

Yep

#

and for functions they're all listed in the class page

winter token Jan 16, 2026, 3:37 AM

#

the tutrorial still breaks tho ;c

tidal elm Jan 16, 2026, 3:39 AM

#

I'm not sure if there are any tutorials for fabric 1.20.1 in mojmap

winter token Jan 16, 2026, 3:39 AM

#

yeah..

#

cause apparently the tutorial uses Identifiers and that didnt work, so my friend used BuiltInRegistries instead

tidal elm Jan 16, 2026, 3:40 AM

#

Those are different things but ok

#

Yarn still works perfectly fine below 26.1 I think that might be easiest for you as a beginner

winter token Jan 16, 2026, 3:40 AM

#

want to see what i have?

tidal elm Jan 16, 2026, 3:41 AM

#

For what?

winter token Jan 16, 2026, 3:41 AM

#

in the ModItemsGroup thats busted

tidal elm Jan 16, 2026, 3:41 AM

#

Oh sure

winter token Jan 16, 2026, 3:42 AM

#

apparently this has four errors

tidal elm Jan 16, 2026, 3:42 AM

#

Okay look up Registries and Identifier in the mappings

winter token Jan 16, 2026, 3:43 AM

#

apparently FabricItemGroups.builder is also not present

#

so ill try and look it up

tidal elm Jan 16, 2026, 3:44 AM

#

That's the same because it's part of fabric not Minecraft

winter token Jan 16, 2026, 3:44 AM

#

so if its not showing up then its a fabric issue on my end?

tidal elm Jan 16, 2026, 3:45 AM

#

Oh wait you meant in the code not in the mappings site right?

winter token Jan 16, 2026, 3:45 AM

#

both

#

i searched the package and it wasnt there, and builder never showed up in the code either when i tried to use tab

tidal elm Jan 16, 2026, 3:46 AM

#

Huh ok

winter token Jan 16, 2026, 3:47 AM

#

cause he used FabricItemGroup.builder() but the fabricItemGroup shows up but not the builder part after

tidal elm Jan 16, 2026, 3:49 AM

#

Huh it should be there

#

What do you see for the definition of FabricItemGroup?

winter token Jan 16, 2026, 3:55 AM

#

isnt it shift and hover to see def

tidal elm Jan 16, 2026, 5:37 AM

#

No it's ctrl+click

#

Or F12 I think

wintry sable Jan 16, 2026, 12:28 PM

#

I would highly recommend watching kaupenjoes modding videos, it gives some structure and allows you to learn how the code works after copying it. I’d also recommend making some separate java projects to familiarize yourself with the syntax.

#

And one other thing never use AI it codes in a confusing way that can be difficult for beginners to read.

winter token Jan 16, 2026, 1:04 PM

#

I did watch the tutorial. The tutorial doesn’t work properly right now so that’s why I am here asking for help on it lol

tidal elm Jan 16, 2026, 5:21 PM

#

wintry sable I would highly recommend watching kaupenjoes modding videos, it gives some struc...

Kaupenjoe is in yarn but they're using mojmap

wintry shard Jan 20, 2026, 6:50 AM

#

winter token I did watch the tutorial. The tutorial doesn’t work properly right now so that’s...

Use 1.22

#

*21

winter token Jan 21, 2026, 5:48 PM

#

I would, but the problem is that I am still a novice so its hard for me to figure this out

tidal elm Jan 21, 2026, 7:05 PM

#

I think it'd be easiest for you to use yarn instead of mojmap since the tutorials are likely all yarn and it doesn't sound like you've written too much code to migrate yet

wintry shard Jan 21, 2026, 8:08 PM

#

tidal elm I think it'd be easiest for you to use yarn instead of mojmap since the tutorial...

Or wait until the 26.1 update where yarn doesn't exist anymore

tidal elm Jan 21, 2026, 8:23 PM

#

winter token something that has to be on 1.20.1

^

#

Also you'd have to wait for tutorials to come out

winter token Jan 21, 2026, 9:14 PM

#

So it’s a relatively new thing switching over to Mojmaps?

#Help with Custom Blocks