C++ Class object as argument in other class function - c++

Question

I have a C++ project in Visual Studio 2015.
GameManager.h and Input.h both give me a syntax error: identifier 'Player'. This happens because I want to give an object of type 'Player' as an argument to functions in these two Header files and their appropriate C++ Files.
How do I fix that? For further information I have provided my code.
main.cpp:
#include "GameManager.h"
#include "Input.h"
#include "Player"
#include <iostream>
#include <string>
using namespace std;
const int maxPlayerCnt = 10;
static Player p1, p2, morePlayers[maxPlayerCnt];
int main()
{
GameManager game;
game.Game(p1, p2, morePlayers);
return 0;
}
It creates an object of type GameManager and 3 objects of type Player.
GameManager.h:
#include "Player.h"
class GameManager
{
public:
void Game(Player p1, Player p2, Player morePlayers[]);
};
GameManager.cpp:
#include "GameManager.h"
void GameManager::Game(Player p1, Player p2, Player morePlayers[])
{
int playerCnt = 0;
Input input;
input.getPlayerDetails(playerCnt, p2);
input.getMorePlayerDetails(playerCnt, morePlayers);
}
It creates an object of type Input to use further functions and will get more code, once I figure this problem out. And then calls to functions with specific arguments it gets from main.cpp
Input.h:
#pragma once
#include "Player.h"
#include <iostream>
#include <string>
using namespace std;
class Input
{
public:
Input();
void getPlayerDetails(int &playerNum, Player p);
void getMorePlayerDetails(int &playerNum, Player p[]);
};
It includes everything Input.cpp needs and initializes the funcitons
Input.cpp:
#include "Input.h"
void Input::getPlayerDetails(int &playerNum, Player p)
{
playerNum++;
string currentName;
char currentSymbol;
cout << "Player " << playerNum << ", what is your name?\n";
cin >> currentName;
p.setName(currentName);
cout << currentName << " what is your symbol?\n";
cin >> currentSymbol;
p.setSymbol(currentSymbol);
}
void Input::getMorePlayerDetails(int &playerNum, Player p[])
{
int plNum = playerNum;
if (playerNum >= 12)
cout << "You can't get another player!\n";
else
{
//getPlayerDetails(p[playerNum - 2], (plNum - 2));
}
}
It for now has all the functions needed and both get an object of type Player. And the second function is not quite done now. But that is not important.
Player.h:
#pragma once
#include <iostream>
#include <string>
using namespace std;
class Player
{
private:
string _name;
char _symbol;
public:
Player();
void getName();
void setName(string name);
void setSymbol(char symbol);
};
Player.cpp:
#include "Player.h"
Player::Player()
{
}
void Player::getName()
{
cout << "I have no name!\n";
}
void Player::setName(string name)
{
_name = name;
}
void Player::setSymbol(char symbol)
{
_symbol = symbol;
}
If you can help me, I would be pleased to see your response.