不是類或名稱空間名稱

Question

我知道這個問題以前已經被問及過，但是沒有一個解決方案似乎對我有用，而且我的編譯器在這個錯誤中表現得很奇怪。

當我嘗試編譯我的代碼，我得到了許多錯誤，如這些：

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

我之前編譯我的項目時遇到這樣那樣的錯誤，但它神祕消失了。我試圖解決這個問題，過了一段時間後，我恢復了所有的更改後纔開始工作。

我認爲這可能是我的預編譯頭文件的問題，因爲在我嘗試修復PCH無法正常工作的錯誤後彈出此錯誤。

這裏是我的代碼（我知道它的目的不是說好了，只是想獲得它目前的工作：P）：

的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; 
} 

Answer 1

PCH（即stdafx.h）應當首先在.cpp文件包括在內。所以這樣做：你願意告訴我們** **哪裏發生錯誤，或者是這部分

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