C++ Erreur C2653 de "Classe" n'est pas une classe ou d'un nom d'espace de noms

Bon après-midi. J'ai commencé à apprendre le c++ et je vais avoir des et le problème de la compilation de mon projet.
Si vous trouvez un code défectueux, je serais heureux si vous me dites.

J'ai les définitions suivantes:

Utils.h

#include "stdafx.h"
#include <string>
using namespace std;

class Utils
{
public:
static string GetStringFromInt (int number);
};

Utils.cpp

#include "Utils.h"
#include <sstream>
#include <string>
using namespace std;

 string Utils::GetStringFromInt (int number)
{

    stringstream ss;
    ss << number;
    return ss.str();
}

et

Ping.h

#include "stdafx.h"
#include <string>

using namespace std;

class Ping
{
public:
    static int PingIt(int argc, char* argv[],string &mstime,string &ttl);   
};

Ping.cpp

#include "Ping.h"
#include <string>
#include "icmpdefs.h"
#include <string>
#include <iostream>
#include <sstream>
#include <WinSock.h>
#include <Windows.h>
#include "Utils.h"
#pragma comment(lib,"wsock32.lib")
using namespace std;
int Ping::PingIt(int argc, char* argv[],string &mstime,string &ttl)
{
//Check for correct command-line args
if (argc < 2) {
cerr << "usage: ping <host>" << endl;
return 1;
}
//Load the ICMP.DLL
HINSTANCE hIcmp = LoadLibrary("ICMP.DLL");
if (hIcmp == 0) {
cerr << "Unable to locate ICMP.DLL!" << endl;
return 2;
}
//Look up an IP address for the given host name
struct hostent* phe;
if ((phe = gethostbyname(argv[1])) == 0) {
cerr << "Could not find IP address for " << argv[1] << endl;
return 3;
}
//Get handles to the functions inside ICMP.DLL that we'll need
typedef HANDLE (WINAPI* pfnHV)(VOID);
typedef BOOL (WINAPI* pfnBH)(HANDLE);
typedef DWORD (WINAPI* pfnDHDPWPipPDD)(HANDLE, DWORD, LPVOID, WORD,
PIP_OPTION_INFORMATION, LPVOID, DWORD, DWORD); //evil, no?
pfnHV pIcmpCreateFile;
pfnBH pIcmpCloseHandle;
pfnDHDPWPipPDD pIcmpSendEcho;
pIcmpCreateFile = (pfnHV)GetProcAddress(hIcmp,
"IcmpCreateFile");
pIcmpCloseHandle = (pfnBH)GetProcAddress(hIcmp,
"IcmpCloseHandle");
pIcmpSendEcho = (pfnDHDPWPipPDD)GetProcAddress(hIcmp,
"IcmpSendEcho");
if ((pIcmpCreateFile == 0) || (pIcmpCloseHandle == 0) || 
(pIcmpSendEcho == 0)) {
cerr << "Failed to get proc addr for function." << endl;
return 4;
}
//Open the ping service
HANDLE hIP = pIcmpCreateFile();
if (hIP == INVALID_HANDLE_VALUE) {
cerr << "Unable to open ping service." << endl;
return 5;
}
//Build ping packet
char acPingBuffer[64];
memset(acPingBuffer, '\xAA', sizeof(acPingBuffer));
PIP_ECHO_REPLY pIpe = (PIP_ECHO_REPLY)GlobalAlloc(
GMEM_FIXED | GMEM_ZEROINIT,
sizeof(IP_ECHO_REPLY) + sizeof(acPingBuffer));
if (pIpe == 0) {
cerr << "Failed to allocate global ping packet buffer." << endl;
return 6;
}
pIpe->Data = acPingBuffer;
pIpe->DataSize = sizeof(acPingBuffer);      
//Send the ping packet
DWORD dwStatus = pIcmpSendEcho(hIP, *((DWORD*)phe->h_addr_list[0]), 
acPingBuffer, sizeof(acPingBuffer), NULL, pIpe, 
sizeof(IP_ECHO_REPLY) + sizeof(acPingBuffer), 5000);
if (dwStatus != 0) {
cout << "Addr: " <<
int(LOBYTE(LOWORD(pIpe->Address))) << "." <<
int(HIBYTE(LOWORD(pIpe->Address))) << "." <<
int(LOBYTE(HIWORD(pIpe->Address))) << "." <<
int(HIBYTE(HIWORD(pIpe->Address))) << ", " <<
"RTT: " << int(pIpe->RoundTripTime) << "ms, " <<
"TTL: " << int(pIpe->Options.Ttl) << endl;
mstime = Utils::GetStringFromInt((pIpe->RoundTripTime));
ttl = Utils::GetStringFromInt(int(pIpe->Options.Ttl));
}
else {
cerr << "Error obtaining info from ping packet." << endl;
}
//Shut down...
GlobalFree(pIpe);
FreeLibrary(hIcmp);
return dwStatus;
}

Quand je Compile le projet-je obtenir:

Erreur 1 erreur C2653: 'Ping' : n'est pas une classe ou d'un nom d'espace de noms c:\users\clanderasm\documents\visual studio 2010\projects\landetestconsole\landecplusconsole\ping.cpp 14 1 LandeCplusConsole

J'ai lu parfois, cette erreur est levée, car vous n'avez pas include "stdafx.h"
le premier #include mais je l'ai déjà changé.

Si vous pouviez me dire quelque chose de plus, je serais heureux

OriginalL'auteur Carlos Landeras | 2012-11-07