corbango17

Making a new world solved the problem, thanks. So every time I make a new Item/Block/Whatever do I need to make a new world?

No I haven't done anything. So maybe it's something wrong with my environment? Is that possible?

Yes I know 1.14.4 is old but I couldn't get 1.15 to work at all so I started using 1.14.4. Github repo: https://github.com/mcorby17/first-minecraft-modd I'm trying to make a basic block that just exists. I keep getting the following: [20Mar2020 14:09:10.522] [Server thread/INFO] [net.minecraftforge.registries.ForgeRegistry/REGISTRIES]: Registry Block: Found a missing id from the world examplemod:examplemod [20Mar2020 14:09:10.613] [Server thread/ERROR] [net.minecraftforge.registries.GameData/REGISTRIES]: Unidentified mapping from registry minecraft:block examplemod:examplemod: 676 I'm new to this and i've scoured the internet for help but have not found anything that has worked. I figure the problem either lies here: @Mod.EventBusSubscriber(bus=Mod.EventBusSubscriber.Bus.MOD) public static class RegistryEvents { @SubscribeEvent public static void onItemsRegistry(final RegistryEvent.Register<Item> blockItemEvent) { ItemList.bomb_item = new Item(new Item.Properties().group(ItemGroup.COMBAT)); ItemList.bomb_item.setRegistryName(new ResourceLocation(ExampleMod.MOD_ID, "bomb_item")); ItemList.mystery_block = new BlockItem(BlockList.mystery_block, new Item.Properties().group(ItemGroup.MISC)); ItemList.mystery_block.setRegistryName(new ResourceLocation(ExampleMod.MOD_ID, "mystery_block")); blockItemEvent.getRegistry().registerAll(ItemList.bomb_item, ItemList.mystery_block); LOGGER.info("Items registered."); } @SubscribeEvent public static void onBlocksRegistry(final RegistryEvent.Register<Block> blockRegistryEvent) { BlockList.mystery_block = new Block(Block.Properties.create(Material.CAKE) .hardnessAndResistance(2.0f, 2.0f) .sound(SoundType.GLASS)); BlockList.mystery_block.setRegistryName(new ResourceLocation(MOD_ID, "mystery_block")); blockRegistryEvent.getRegistry().registerAll(BlockList.mystery_block); LOGGER.info("Blocks registered."); } } Or in my JSON files (please refer to github repo for those). Any ideas? Thanks for reading.