void Game::startGame()
{

	cout << "Start dice game...n";

	for(int i = 5; playerLose = 1; i++)    //playerLose is a boolean check
	{
		
		Dice d1;      // creating Dice object. I dont even know if your allowed to create 
an object for a class in another class's method. Seems like it might be bad practice or something.
		Game::turn();	//makes the game roll the dice

		if (d1.getValue() != 6)
		{
			decrementScore();
		}
		else
		{
			Win();
			break;
		}
		
		if (getScore() == 0)
		{
			Lose();
			break;
		}

	}
	return;
}

void Game::turn()
{
	d1.roll();    // <---- my compiler is telling me "error C2065: 'd1' : 
undeclared identifier" and "error C2228: left of '.roll' must have 
class/struct/union" Im basically seeing that as the compiler saying "This aint 
no object i know about!" Even though i created it in the startGame() method. 
I just need to tell it what object im talking about.
		cout << d1.getValue() << "  " << getScore() << endl; // 
same thing with d1.getValue in this line.
	return;
}

class Dice 
{
    // ...
};

class Game
{
    Dice dice;

    // ...
};