Unresolved External Symbol - LNK2019
Hi,
I have just started programming with C using Visual C++. At the moment I am learning how to handle classes. I am using a C++ book, where I am instructed to create applications that use classes like this:
Person.h
#pragma once
class Person
{
private:
char name[30];
int age;
public:
Person();
};
ClassPerson.h
#include "stdafx.h"
using namespace std;
Person::Person()
{
name = "Name";
age = 15;
}
stdafx.h
#pragma once
#define WIN32_LEAN_AND_MEAN // Exclude rarely-used stuff from Windows headers
#include <stdio.h>
#include <tchar.h>
#include <string.h>
#include <iostream>
#include <stdlib.h>
#include "Person.h"
Person.cpp
#include "stdafx.h"
using namespace std;
void main()
{
Person person;
cin.get();
}
This is not working. I get an unresolved external symbol LNK2019 error:
Person.obj : error LNK2019: unresolved external symbol "public: __thiscall Person::Person(void)" (??0Person@@QAE@XZ) referenced in function _main
I have made the example here as simple as possible. I have searched MSDN and other resources how to resolve the issue, but I don't fully understand what to do. So, can somebody please instruct what changes I should make in the code?
The only way to solve this so far, is to put ALL code in a single cpp-file. Also if I comment out the Person person; line, the application will run.
Thank you for your assistance.
Cheers!
|
