im doing a udemy course on c++ and when running my program i get an error of "WinMain@16"

Question

main.cpp:

#include <iostream>
#include "person.h"
using namespace std;

int main(){

Person human;

human.setName("frank");

cout << human.toString() << endl;

cout << "Name of person with get method: " << human.getName() << endl;

return 0;
}

person.h:

#ifndef PERSON_H_INCLUDED
#define PERSON_H_INCLUDED

#include <iostream>
using namespace std;

class Person
{
private:
string name;

public:
Person();
string toString();
void setName(string newName);
string getName();
};

#endif

person.cpp:

#include "person.h"

Person::Person()
{

name = "George";
}

string Person::toString()
{
return "Persons name is: " + name;
}

void Person::setName(string newName)
{

name = newName;
}

string Person::getName()
{

return name;
}

This is all my code from the program. When i run the program through visual studio code i get an error message that says: "c:/mingw/bin/../lib/gcc/mingw32/6.3.0/../../../libmingw32.a(main.o):(.text.startup+0xa0): undefined reference to `WinMain@16' collect2.exe: error: ld returned 1 exit status"