Plz Help NullReferenceException

Unity Engine
1

Line 66 and line 161 Any help will be grateful
NullReferenceException: Object reference not set to an instance of an object

using UnityEngine;
using System.Collections;


public class HighscoreDisplay : MonoBehaviour {
	
	public Vector2 boxStartLocation;
	public GUIStyle textGUIStyle; 

	Highscore[] score;
	
	
	
	class Highscore{	
		public string name;	
		public int deaths;	
		public int kills;	
		public int gameID; 
	}
	
	
	// Use this for initialization
	void Start () {
		enterName = false;
		SyncPlayerPrefs();
		AddNewHighscore();
		
	
		score = new Highscore[10]; 
		for( int i = 0; i < 10; i++ ){ score[i] = new Highscore(); }
		score[0].name = "Ron";	
		score[1].name = "John";
		score[2].name = "Smith";
		score[3].name = "Josh";
		score[4].name = "Sam";
		score[5].name = "Kat";
		score[6].name = "Justin";
		score[7].name = "Ray";
		score[8].name = "Zack";
		score[9].name = "Nicole";
	}
	
	// Update is called once per frame
	void Update () {
		pulseColor = Color.Lerp(Color.white, Color.black, Mathf.PingPong(Time.time*1.4f, 0.5f));			
	}
	
	public float heightOffset = 14;	
	public float deathsOffset = 100;	
	public float killsOffset = 150;	
	public int numberHighscores = 9;	
	public string newName = "Enter name";
	public Color pulseColor;
	public bool enterName = false;
	
	void OnGUI()
	{
		if (newHighscorePosition < numberHighscores) 
		{
			GUI.SetNextControlName ("NameTextField");
			newName = GUI.TextField(new Rect(-100,-100,1,1),newName,30);
			GUI.FocusControl ("NameTextField");
			
			
		PreviewLabs.PlayerPrefs.SetString("highscore" + newHighscorePosition + "name" , newName); 
		score[newHighscorePosition].name = newName;				
		}
		
		for( int i = 0; i < numberHighscores; i++){
			 
			if (i == 0) {
				GUI.color = Color.green;
			} else if (i == newHighscorePosition) {
				GUI.color = pulseColor;
			} else {
				GUI.color = Color.white;
			}
			
			GUI.Box(new Rect( Screen.width /2+ boxStartLocation.x,
				 Screen.height/2+ boxStartLocation.y + i * heightOffset,
				120, 30), score[i].name,textGUIStyle);
		
	
		
			 GUI.Box(new Rect( Screen.width /2+ boxStartLocation.x + deathsOffset,
				 Screen.height/2+ boxStartLocation.y + i * heightOffset,
				120, 30), score[i].deaths.ToString(),textGUIStyle);
		
	
		
			 GUI.Box(new Rect( Screen.width /2+ boxStartLocation.x + killsOffset,
				 Screen.height/2+ boxStartLocation.y + i * heightOffset,
				120, 30), score[i].kills.ToString(),textGUIStyle);
		}
	}
	
	
	
	public int newHighscorePosition;
	
	void AddNewHighscore() {
		newHighscorePosition = numberHighscores+1;
		var curdeaths = PreviewLabs.PlayerPrefs.GetInt("highscoreCurrentdeaths");
		var curKills = PreviewLabs.PlayerPrefs.GetInt("highscoreCurrentKills");
		var curGameID = PreviewLabs.PlayerPrefs.GetInt("highscoreCurrentGameID");
			
		for( int i = 0 ; i < numberHighscores ; i++ ) { 
			if (curGameID == score[i].gameID) {
				return;
			}
			if (curdeaths > score[i].deaths) {
				
				newHighscorePosition = i;
				break;
			} else if (curdeaths == score[i].deaths  curKills > score[i].kills) {
				
				newHighscorePosition = i;
				break;
			} 
		} 
		
		
		
		
	
		
		if (newHighscorePosition < numberHighscores) 
		{
			for(int i = numberHighscores - 1 ; i >= newHighscorePosition ; i-- ) { 
				if (i == newHighscorePosition) {
					PreviewLabs.PlayerPrefs.SetString("highscore" + i + "name" , score[i].name); 
					score[i].name = score[i].name;
					PreviewLabs.PlayerPrefs.SetInt("highscore" + i + "deaths" , curdeaths);
					score[i].deaths = curdeaths;
					PreviewLabs.PlayerPrefs.SetInt("highscore" + i + "kills" , curKills);
					score[i].kills = curKills;	
					PreviewLabs.PlayerPrefs.SetInt("highscore" + i + "gameid" , curGameID);
					score[i].gameID = curGameID;			
				} else {
					PreviewLabs.PlayerPrefs.SetString("highscore" + i + "name" , score[i-1].name);
					score[i].name = score[i-1].name;
					PreviewLabs.PlayerPrefs.SetInt("highscore" + i + "deaths" , score[i-1].deaths);
					score[i].deaths = score[i-1].deaths;
					PreviewLabs.PlayerPrefs.SetInt("highscore" + i + "kills" , score[i-1].kills);
					score[i].kills = score[i-1].kills;
					PreviewLabs.PlayerPrefs.SetInt("highscore" + i + "gameid" , score[i-1].gameID);
					score[i].gameID = score[i-1].gameID;
				}
			}
		}
		
		PreviewLabs.PlayerPrefs.Flush(); 
	}
	
	void SyncPlayerPrefs(){
			
		for( int i = 0; i < numberHighscores; i++){
			
			if (PreviewLabs.PlayerPrefs.HasKey("highscore" + i + "name" )) {
				
				score[i].name = PreviewLabs.PlayerPrefs.GetString("highscore" + i + "name");
			} else {
				
				PreviewLabs.PlayerPrefs.SetString("highscore" + i + "name" , score[i].name);
			}
			
			if (PreviewLabs.PlayerPrefs.HasKey("highscore" + i + "deaths" )) {
				
				score[i].deaths = PreviewLabs.PlayerPrefs.GetInt("highscore" + i + "deaths");
			} else {
				
				PreviewLabs.PlayerPrefs.SetInt("highscore" + i + "deaths" , score[i].deaths);
			}
			
			if (PreviewLabs.PlayerPrefs.HasKey("highscore" + i + "kills" )) {
				
				score[i].kills = PreviewLabs.PlayerPrefs.GetInt("highscore" + i + "kills");
			} else {
				
				PreviewLabs.PlayerPrefs.SetInt("highscore" + i + "kills" , score[i].kills);
			}
			
			if (PreviewLabs.PlayerPrefs.HasKey("highscore" + i + "gameid" )) {
				
				score[i].gameID = PreviewLabs.PlayerPrefs.GetInt("highscore" + i + "gameid");
			} else {
				
				PreviewLabs.PlayerPrefs.SetInt("highscore" + i + "gameid" , score[i].gameID);
			}
		}
		
		PreviewLabs.PlayerPrefs.Flush();
		}
	
	}
}
2

Initialize your highscore array:

Highscore[ ] score = new Highscore[10];

3

if I put that line after line 66 I get
A local variable named score' cannot be declared in this scope because it would give a different meaning to score’, which is already used in a `parent or current’ scope to denote something else

4

You do it at line 10,

5

Even if I change my line 10 from Highscore[ ] score; to Highscore[ ] score = new Highscore[10]; im still getting the NullReferenceException

6

Initialising the array doesn’t instantiate the items inside the array. You do instantiate them, but not before you try and use them (i.e. SyncPlayerPrefs() is called before the objects are instantiated).

7

Thanks Johnny