moneybanned

You must check that you are on the server first, only set blocks on the server. And how do I do that ?

Here is my code it is not possible to install the block on the right mouse button public class SaltyIngot extends Item { public SaltyIngot() { super(new Properties().group(ModItemGroups.MOD_MATERIALS_TAB)); } @Override public ActionResult<ItemStack> onItemRightClick(World world, PlayerEntity player, Hand hand) { world.setBlockState(new BlockPos(1, 1, 1), Blocks.DIAMOND_BLOCK.getDefaultState()); return super.onItemRightClick(world, player, hand); } }