error C2011: ” : ‘class’ type redefinition

Change to code to something like this:

#ifndef AAA_HEADER
#define AAA_HEADER

#include "stdafx.h"

class AAA
{
public:
    std::string strX;
    std::string strY;
};

#endif

If you include this header file more than once in some source file, include guards will force compiler to generate class only once so it will not give class redefinition error.

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