Проблема с созданием классов с++ в MS Visual studio 10 and 17

#pragma once
#include <string>
#include "stdafx.h"
 
ref class department
{
    //
    int _memb;
private:
    int Quantity_Department;
    double Costs_Department;
    double Budget_Department;
    System::String ^ Name_Department;
    System::String ^ Description_Depatrment;
public:
    department() {};
    System::String ^ get_Name_Department();
    void set_Name_Department(char[1024]);
    int get_Quantity_Department();
    void set_Quantity_Department(int);
    double get_Costs_Department();
    void set_Costs_Department(double);
    System::String ^  get_Description_Depatrment();
    void set_Description_Depatrment(char[1024]);
    ~department();
};

#include "stdafx.h"
#include "department.h"
 
    System::String ^ department::get_Name_Department(){
        return  Name_Department;
    };
    void department::set_Name_Department(char name[1024] ){
        
         Name_Department = gcnew System::String(name,0,1024);
    };
    int department::get_Quantity_Department(){
        return Quantity_Department;
    };
    void department::set_Quantity_Department(int quantity){
      Quantity_Department=quantity;
    };
    double department::get_Costs_Department(){
        return Costs_Department;
    };
    void department::set_Costs_Department(double costs){
        Costs_Department=costs;
    };
    System::String ^ department::get_Description_Depatrment(){
        return Description_Depatrment;
    };
    void department::set_Description_Depatrment(char Description[1024]){
        
        Description_Depatrment=gcnew System::String(Description,0,1024);
    };

#include "department.h"
department^ dep = gcnew department();