Ошибка компиляции при наследовании классов

#pragma once
class New : virtual public CTransport
{};

#pragma once
#define _CRT_SECURE_NO_WARNINGS
#include <stdlib.h>
#include <iostream>
#include <cstring>
#include <string.h>
#include "CNew.h"
using namespace std;
#ifndef Transport
#define Transport
class CTransport
{
protected:
     char* name;
    int speed, veight,pas;
public:
    CTransport();
    CTransport(const char* n, int v, int s);
    CTransport(const CTransport& obj);
    virtual ~CTransport();
 
    void ShowProperty();
    virtual void Tran() = 0;
    void Get();
    void Set(int veight, int speed, int pas);
    CTransport& operator=(const CTransport&);
};
#endif

#define _CRT_SECURE_NO_WARNINGS
#include "CTransport.h"
#include "string.h"
 
CTransport::CTransport() : name(new char[20]), veight(0)
{
    strcpy(name, "No name");
}
CTransport::CTransport(const char* n, int v, int s)
{
    name = new char[strlen(n) + 1];
    strcpy(name, n);
}
CTransport::CTransport(const CTransport& obj)
{
    name = new char[strlen(obj.name) + 1];
    strcpy(name, obj.name);
    veight = obj.veight;
    speed = obj.speed;
}
CTransport::~CTransport()
{
    delete[] name;
}
 
void CTransport::ShowProperty()
{
    cout << "Name: " << name << endl;
    cout << "Speed: " << speed << endl;
    cout << "Veight: " << veight << endl;
}
CTransport& CTransport::operator=(const CTransport& obj)
{
    if (this != &obj)
    {
        delete[] name;
        name = new char[strlen(obj.name) + 1];
        name = obj.name;
        veight = obj.veight;
        speed = obj.speed;
    }
    return *this;
}
void CTransport::Set(int veight , int speed ,int pas)
{
    
    this ->veight = veight;
    this->speed = speed;
    this->pas = pas;
}
void CTransport::Get()
{
    cout << "current obj props : veight ,speed,pas number :  " << veight << "   " << speed << "   " << pas << endl;
}