Ir Problem

Hi all,i have a problem with my arduino.I was connect a ir receiver to my arduino and write a code,it's code from here:

But my arduino was sent me a error,how to fix it?
Sorry for my language,it's horrible,i can understand almost everything,but my speak and write is very bad.

Those errors probably mean that the compiler can't find the library files. Where have you put them?

Library is in same folder where is arduino,and i see i don't have library of remote.I was remove a lcd library and when i write on arduino
#include LiquidCrystal.h it was black,but when i put back library,the LiquidCrystal.h chang collor in orange.Where to find library of remote ..i was search but i can't find it.Thanks

GitHub - Arduino-IRremote/Arduino-IRremote: Infrared remote library for Arduino: send and receive infrared signals with multiple protocols as stated on the page you linked to.

I solved the problem with small problems,thanks.