C++ :: Rectangle Class Program - Header File Will Not Compile

I am currently learning OOP, and I can't figure out what the problem is with my header file. The rest of the program complies fine though. I am using g++ on UNIX.

myClass.h:9:23: error: Rectangle.h: No such file or directory
myClass.h: In function ‘int main()’:
myClass.h:13: error: ‘Rectangle’ was not declared in this scope
myClass.h:13: error: expected `;' before ‘rect’
myClass.h:14: error: ‘rect’ was not declared in this scope

Code:
myClass.h
/* This header file contains, The main function for my rectangle class program.*/

#include "Rectangle.h"
using namespace std;
int main(){
Rectangle rect;
rect.displayMaxRectangles();
rect.process();
rect.summary();

[Code] .....