What's wrong with my Index?

Hello guys,

This is my script, and ever when i start, this return a "ArgumentOutOfRangeException: Argument is out of range" Whats wrong with my declaration?

Code (CSharp):

1. using UnityEngine;
2. using System.Collections;
3. using System.Collections.Generic;
4. using System.Reflection;
5. using System.IO;
6. using System.Text;
7. using System.Collections.ObjectModel;
8.  
9. namespace Tudo
10. {
11.     public class Luccas : MonoBehaviour
12.     {
13.         void Start()
14.         {  
15.             Outra Mesmo = new Outra ();
16.             int HP = Mesmo [0] = 10;
17.  
18.             Debug.Log (HP);
19.         }
20.     }
21.  
22.     public class Outra
23.     {
24.         public int Hp;
25.         public string Nick;
26.         public int status;
27.  
28.         public List<int> numeros = new List<int> ();
29.  
30.         public int this [int Index]
31.         {
32.             get
33.             {
34.                 return numeros[Index];
35.             }
36.             set
37.             {
38.                 numeros[Index] = value;
39.             }
40.         }
41.     }
42. }

 

Code (csharp):

1. new List<int> ();

You're not adding any elements to numeros, so it can't get the first index.

 

I am assuming the error is because of this:
http://stackoverflow.com/questions/8494077/adding-members-to-c-sharp-list-using-indexes

 

meatpuddding is right..so maybe you can add an Outra constructor and
add some element to the list first.

 

Yeah, he is right. I add few elements in the List, and work right. Thanks!