error LNK2019: unresolved external symbol

I've recently started to program in C++ again, and for the purposes of education, I am working on creating a poker game. The weird part is, I keep getting the following error:

1>LearningLanguage01.obj : error LNK2019: unresolved external symbol "public: __thiscall PokerGame::Poker::Poker(void)" (??0Poker@PokerGame@@QAE@XZ) referenced in function "void __cdecl `dynamic initializer for 'pokerGame''(void)" (??__EpokerGame@@YAXXZ)
1>LearningLanguage01.obj : error LNK2019: unresolved external symbol "public: __thiscall PokerGame::Poker::~Poker(void)" (??1Poker@PokerGame@@QAE@XZ) referenced in function "void __cdecl `dynamic atexit destructor for 'pokerGame''(void)" (??__FpokerGame@@YAXXZ)
1>LearningLanguage01.obj : error LNK2019: unresolved external symbol "public: void __thiscall PokerGame::Poker::begin(void)" (?begin@Poker@PokerGame@@QAEXXZ) referenced in function _wmain
1>C:\Visual Studio 2012\Projects\LearningLanguage01\Debug\LearningLanguage01.exe : fatal error LNK1120: 3 unresolved externals

I have done some research on the issue, and most point to the constructor and destructor definition in the header and .cpp not matching. I don't see any issues with the header and .cpp.

Here is the code for poker.h:

#pragma once

#include "Deck.h"

using namespace CardDeck;

namespace PokerGame
{
    const int MAX_HAND_SIZE = 5;

    struct HAND
    {
        public:
            CARD cards[MAX_HAND_SIZE];
    };

    class Poker
    {
        public:
            Poker(void);
            ~Poker(void);
            HAND drawHand(int gameMode);
            void begin();
    };
}

And the code in the .cpp:

#include "stdafx.h"
#include "Poker.h"

using namespace PokerGame;

const int TEXAS_HOLDEM = 0;
const int FIVE_CARD = 1;

class Poker
{
    private:
        Deck deck;      

    Poker::Poker()
    {
        deck = Deck();
    }

    Poker::~Poker()
    {
    }

    void Poker