I got a NullReferenceException but I don't know why :(

Questions & Answers
1

Hi there,
I am making a card game and I wanted to deal the deck. Here is my code:
using System.Collections.Generic;
using UnityEngine;

public class Dealer : MonoBehaviour
{
    GameObject player1, player2, player3, player4;
    public List<GameObject> deck;

    // Use this for initialization
    void Start()
    {
        player1 = Instantiate(Resources.Load<GameObject>("Prefabs/Player"));
        player2 = Instantiate(Resources.Load<GameObject>("Prefabs/Player"));
        player3 = Instantiate(Resources.Load<GameObject>("Prefabs/Player"));
        player4 = Instantiate(Resources.Load<GameObject>("Prefabs/Player"));

        deck = new List<GameObject>();
        FillDeck(); //I deleted this from, unimportant for now
        DealDeck();
    }

    void DealDeck()
    {
        Player p1 = player1.GetComponent<Player>();
        Player p2 = player2.GetComponent<Player>();
        Player p3 = player3.GetComponent<Player>();
        Player p4 = player4.GetComponent<Player>();

        while (deck.Count > 0)
        {
            int index = Random.Range(0, deck.Count);
            GameObject card = deck[index];
            deck.RemoveAt(index);

            if (p1.Count() < p2.Count())
                p1.AddToHand(card);
            else if (p2.Count() < p3.Count())
                p2.AddToHand(card);
            else if (p3.Count() < p4.Count())
                p3.AddToHand(card);
            else
                p4.AddToHand(card);
        }

        Debug.Log(p1.Count());
        Debug.Log(p2.Count());
        Debug.Log(p3.Count());
        Debug.Log(p4.Count());
    }
}

And here is my code for Player:
using UnityEngine;
using System.Collections.Generic;

public class Player : MonoBehaviour {
    List<GameObject> hand;
	// Use this for initialization
	void Start ()
    {
        hand = new List<GameObject>();
	}

    public int Count()
    {
        return hand.Count;
    }

    public void AddToHand(GameObject card)
    {
        hand.Add(card);
        hand.Sort();
        Instantiate(card, transform);
    }
}

I get the following error:
NullReferenceException: Object reference not set to an instance of an object
Player.Count () (at Assets/Scripts/Player.cs: 14)
Can someone explain me why this doesn’t work?

Kind regards,
Alex

2

I found the solution:
instead of using void Start(), I used void Awake().