Error with Make it following line

I am having the next error after I already create the library and uplload the zip file to my Arduino IDE.

linefollow.ino:23:45: fatal error: MakeItRobotics.h: No such file or directory
compilation terminated.

Could some one tell me how to solve it or where can I get the right files,

Thank you.

I am having the next error after I already create the library

Create it where?

and uplload the zip file to my Arduino IDE.

I have no idea what this means, or why you would do that.

Could some one tell me how to solve it

Download and properly install the library.

or where can I get the right files,

Without any context? Sure. You can probably find them on the internet. Or at WalMart.