@Override
public ItemStack getItemStack() throws RegistrationError, MissingIngredientError
{
if ( isAir )
throw new RegistrationError( "Found blank item and expected a real item." );
if ( nameSpace.equalsIgnoreCase( "oreDictionary" ) )
throw new RegistrationError( "Recipe format expected a single item, but got a set of items." );
Block blk = GameRegistry.findBlock( nameSpace, itemName );
if ( blk == null )
blk = GameRegistry.findBlock( nameSpace, "tile." + itemName );