Hello, I'm trying to create a custom coffee liquid. I semi-followed(I know the "semi-" part is where I went wrong, I just can't find what I didn't do/changed that would affect it in this way) the tutorial on the wiki here: http://www.minecraftforge.net/wiki/Create_a_Fluid however, when I try to run the game, I get the following error:

 

 

Caused by: java.lang.NullPointerException
at net.minecraftforge.fluids.FluidRegistry.getFluidID(FluidRegistry.java:119)
at net.minecraftforge.fluids.Fluid.getID(Fluid.java:177)
at net.minecraftforge.fluids.FluidStack.<init>(FluidStack.java:27)
at net.minecraftforge.fluids.BlockFluidClassic.<init>(BlockFluidClassic.java:28)
at com.darichey.ACOJ.block.BlockLiquidCoffee.<init>(BlockLiquidCoffee.java:27)
at com.darichey.ACOJ.init.ModBlocks.<clinit>(ModBlocks.java:22)
... 47 more

 

 

 

The init() method from the following class is called from my preInit() method in my main class:

 

public class ModBlocks
{
    public static final Fluid LiquidCoffee = new LiquidCoffee();
    public static final BlockFluidClassic BlockLiquidCoffee = new BlockLiquidCoffee(LiquidCoffee, Material.water);

    public static void init()
    {
        GameRegistry.registerBlock(BlockLiquidCoffee, Names.LIQUID_COFFEE_BLOCK);
        FluidRegistry.registerFluid(LiquidCoffee);
    }
}

 

 

The LiquidCoffee class:

 

public class LiquidCoffee extends Fluid
{
    public LiquidCoffee()
    {
        super(Names.LIQUID_COFFEE);
        this.setUnlocalizedName(Names.LIQUID_COFFEE);
        this.setViscosity(2000);
    }
}

 

 

The BlockLiquidCoffee class:

 

public class BlockLiquidCoffee extends BlockFluidClassic
{
    @SideOnly(Side.CLIENT)
    protected IIcon stillIcon;

    @SideOnly(Side.CLIENT)
    protected IIcon flowingIcon;

    public BlockLiquidCoffee(Fluid fluid, Material material)
    {
        super(fluid, material);
        this.setCreativeTab(CreativeTabACOJ.ACOJ_TAB);
        this.setBlockName(Names.LIQUID_COFFEE_BLOCK);
    }

    @Override
    public IIcon getIcon(int side, int meta)
    {
        return (side == 0 || side == 1)? stillIcon : flowingIcon;
    }

    @SideOnly(Side.CLIENT)
    @Override
    public void registerBlockIcons(IIconRegister iconRegister)
    {
        stillIcon = iconRegister.registerIcon(Reference.MOD_ID + ":LiquidCoffeeStill");
        flowingIcon = iconRegister.registerIcon(Reference.MOD_ID + ":LiquidCoffeeFlowing");
    }

    @Override
    public boolean canDisplace(IBlockAccess world, int x, int y, int z)
    {
        if (world.getBlock(x, y, z).getMaterial().isLiquid()) return false;
        return super.canDisplace(world, x, y, z);
    }

    @Override
    public boolean displaceIfPossible(World world, int x, int y, int z)
    {
        if (world.getBlock(x, y, z).getMaterial().isLiquid()) return false;
        return super.displaceIfPossible(world, x, y, z);
    }
}

 

 

If I've forgotten to include any relevant code, please tell me.

Thanks! 

Try swapping these two lines:

 

        GameRegistry.registerBlock(BlockLiquidCoffee, Names.LIQUID_COFFEE_BLOCK);

        FluidRegistry.registerFluid(LiquidCoffee);

Thank you for your reply. I've done so with the ModBlocks class now looking like this:

 

public class ModBlocks
{
    public static final Fluid LiquidCoffee = new LiquidCoffee();
    public static final BlockFluidClassic BlockLiquidCoffee = new BlockLiquidCoffee(LiquidCoffee, Material.water);

    public static void init()
    {
        FluidRegistry.registerFluid(LiquidCoffee);
        GameRegistry.registerBlock(BlockLiquidCoffee, Names.LIQUID_COFFEE_BLOCK);
    }
}

 

 

However, the problem still persists. The error is identical.

That worked perfectly, thank you very much.