Error C4430 missing type specifier - int assumed. Note: C++ does not support default-int Generator

Question

i have a problem with following code:

Generator.h:

#pragma once
class Generator
{
public:
    friend class BagObject; 
    Generator(void);
    ~Generator(void);
    ...
    void generator(int);
private:
    BagObject *object;
    vector<BagObject> data; //Error c4430
};

and this is a error:

error C4430: missing type specifier - int assumed. Note: C++ does not support default-int

there is 6 more errors but i believe that they should disappeared after solving this problem.

this is the cpp file. I couldn't paste it on the first time. Generator.cpp

#include "stdafx.h"
#include "Generator.h"
#include "BagObject.h"
#include <iostream>
#include <vector>
#include <ctime>

using namespace std;


Generator::Generator(void)
{
    srand(time(NULL));
}


Generator::~Generator(void)
{
    data.clear();
}

void Generator::generator(int ld)
{
    for (int i = 0; i<ld; i++)
{
    object = new BagObject(rand(),rand(),i);
    data.push_back(object);
    }
}


int main()
{
    Generator *g = new Generator;
    g->generator(10);
    return 0;
}

Answer 1

Other answers are correct, but cryptic. In plain English, your header does not know about BagObject class. You included BagObject.h in the .cpp, but you should have included it in the .h.

It also does not know about vector for the same reason.

I am guessing, you were under impression that .cpp had to use #include, but .h did not. This is a common misunderstanding of beginners in C++. Headers need to include all referenced class declarations, hence you need to elevate your includes from .cpp into your .h.

Move two mentioned includes into the header and it will work.