no operator ">>" matches these operands -- operand types are: std::istream >> const double

My Code

#include <iostream>
#include <stdlib.h>
#define Pi 3.14159
 
using namespace std;
 
class Rectangle
{
    public:
        friend ostream &operator<<(ostream &output,const Rectangle &D)
        {
            output<<"length:"<<D.length<<endl<<"height:"<<D.height<<endl;
            return output;
        }
        friend istream &operator>>(istream &input,const Rectangle &D)
        {
            input >> D.length >> D.height;
            return input;
        }
    private:
        double length;
        double height;
};

The error is in [17,19]:no operator ">>" matches these operands -- operand types are: std::istream >> const double

I am searching for a long time on net. But no use. Please help or try to give some ideas how to achieve this. Thank you very much for answering.