working with LiquidCrystal

// initialize the library with the numbers of the interface pins
LiquidCrystal lcd(12, 11, 5, 4, 3, 2);

error:LiquidCrystal does not a type
Why?

Does your sketch start with this:

#include

yes my sketch start whith #include<LiquidCristal.h>
But now is working, and some time not,I don’t Know why? yet
I tray to see what happen If you have some suggestion…please

Thankoyu any way
good blesss you

You say it is not working. Do you mean the sketch compiles and stops with errors? Or are you saying that you upload the sketch and the LCD does not work?

You will have to show your code using the # button for us to help further.

double check your spelling, i have had so many problems with missing a letter when typing