Florion111

You just saved my life, Thanks!!! For those still wondering, I'm leaving my fixed "use" method right here : @Override public InteractionResult use(BlockState pState, Level pLevel, BlockPos pPos, Player pPlayer, InteractionHand pHand, BlockHitResult pHit) { if (!pLevel.isClientSide()) { BlockEntity entity = pLevel.getBlockEntity(pPos); if(entity instanceof LightForgeBlockEntity) { IForgeServerPlayer thePlayer = (IForgeServerPlayer) pPlayer; thePlayer.openMenu((LightForgeBlockEntity) entity, pPos); } else { throw new IllegalStateException("Our Container provider is missing!"); } } return InteractionResult.sidedSuccess(pLevel.isClientSide()); } I'll get the register too, because it's primordial to have IForgeMenuType with that : public static final RegistryObject<MenuType<LightForgeMenu>> LIGHT_FORGE_MENU = MENUS.register("light_forge_menu", () -> IForgeMenuType.create(LightForgeMenu::new)); Thanks again and have a nice day/week/month/forever and ever

hey I got the exact same problem that (word for word): but I can't access NetworkHooks (nearly sure it got deleted between "forge for 1.20.1" and "forge for 1.20.2"). How do I get that Un- FriendlyByteBuff to be not null ?