不是类名或名称空间名

我知道这个问题以前已经问过并回答过了，但是没有一个解决方案似乎对我有效，我的编译器对这个错误的行为真的很奇怪。

当我尝试编译我的代码时，我得到了许多错误，例如:

Error   1   error C2653: 'TargetList' : is not a class or namespace name    c:projectsarcturusaugmentedrealitytargetlist.cpp    5   1   AugmentedReality
Error   2   error C2065: 'Target' : undeclared identifier   c:projectsarcturusaugmentedrealitytargetlist.cpp    5   1   AugmentedReality
Error   3   error C2146: syntax error : missing ')' before identifier 'target'  c:projectsarcturusaugmentedrealitytargetlist.cpp    5   1   AugmentedReality
Error   4   error C2059: syntax error : ')' c:projectsarcturusaugmentedrealitytargetlist.cpp    5   1   AugmentedReality
Error   5   error C2143: syntax error : missing ';' before '{'  c:projectsarcturusaugmentedrealitytargetlist.cpp    6   1   AugmentedReality
Error   6   error C2447: '{' : missing function header (old-style formal list?) c:projectsarcturusaugmentedrealitytargetlist.cpp    6   1   AugmentedReality

我以前在编译项目时遇到过这种错误，但是它神秘地消失了。我试图解决这个问题，过了一会儿，在我恢复了所有的更改后，它又开始工作了。

我认为这可能是我的预编译头的问题，因为在我试图修复PCH不能正常工作的错误后，这个错误弹出。

这是我的代码(我知道它设计得不是很好，只是想让它此刻工作:p):

StdAfx.h

#pragma once
#define _USE_MATH_DEFINES
#include <math.h>
#include <stdio.h>
#include <stdlib.h>
#include <string>
#include <vector>

Target.h

#pragma once
#include "Position.h"
#include <string>
#include <vector>
class Target
{
public:
    Target();
    Target(std::string shortName, std::string longName, Position position);
    ~Target();
    bool UpdateTargetData(Position currentPosition);
    std::string mShortName;
    std::string mLongName;
    Position mPosition;
    double mDistance;
    double mHorizontalBearing;
    double mVerticalBearing;
};

Target.cpp

#include "Target.h"
#include "stdafx.h"
bool Target::UpdateTargetData(Position currentPosition)
{
    mDistance = currentPosition.GetDistance(mPosition);
    mHorizontalBearing = currentPosition.GetHorizontalBearing(mPosition);
    mVerticalBearing = currentPosition.GetVerticalBearing(mPosition);
    return true;
}

TargetList.h

#pragma once
#include "Target.h"
class TargetList
{
public:
    TargetList();
    ~TargetList();
    bool AddTarget(Target target);
    bool GetTarget(std::string shortName, Target& returnTarget);
    bool RemoveTarget(std::string shortName);
private:
    std::vector<Target> mTargets;
};

TargetList.cpp

#include "TargetList.h"
#include "Target.h"
#include "stdafx.h"
bool TargetList::AddTarget(Target target)
{
    if (GetTarget(target.mShortName, Target()) != false)
    {
        mTargets.push_back(target);
        return true;
    }
    return false;
}
bool TargetList::GetTarget(std::string shortName, Target& returnTarget)
{
    std::vector<Target>::iterator iterator;
    for (iterator = mTargets.begin(); iterator < mTargets.end(); iterator++)
    {
        if ((*iterator).mShortName == shortName)
        {
            returnTarget = (*iterator);
            return true;
        }
    }
    return false;
}
bool TargetList::RemoveTarget(std::string shortName)
{
    std::vector<Target>::iterator iterator;
    for (iterator = mTargets.begin(); iterator < mTargets.end(); iterator++)
    {
        if ((*iterator).mShortName == shortName)
        {
            mTargets.erase(iterator);
            return true;
        }
    }
    return false;
}