ArgumentOutOfRangeException: Index was out of range.

Unity Engine
1

I keep getting this error:

ArgumentOutOfRangeException: Index was out of range. Must be non-negative and less than the size of the collection.
Parameter name: index
System.ThrowHelper.ThrowArgumentOutOfRangeException (System.ExceptionArgument argument, System.ExceptionResource resource) (at <695d1cc93cca45069c528c15c9fdd749>:0)
System.ThrowHelper.ThrowArgumentOutOfRangeException () (at <695d1cc93cca45069c528c15c9fdd749>:0)
Dialog.ShowDialog (System.Int32 dialogStartLine) (at Assets/Scripts/Dialog.cs:77)
Dialog.Interacted () (at Assets/Scripts/Dialog.cs:31)
PlayerInteraction.OnTriggerStay2D (UnityEngine.Collider2D col) (at Assets/Scripts/Player/PlayerInteraction.cs:24)

With this script:

using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.UI;

[System.Serializable]
public class Dialogs
{
    public string name;
    public string dialog;
    public bool stopHere = false;
    public List<FuncCall> fc; //Calls the function afterwards
    public Sprite profileImage;
}

public class Dialog : PlayerInteractable
{
    public List<Dialogs> dialog;
    public GameObject dialogBox;
    public bool dialogOnInteract = true;
    public int dialogLine = 0;

    //private bool dialogDelay;
    private Text nameText;
    private Text dialogText;

    public override void Interacted()
    {
        if(dialogOnInteract)
        {
            ShowDialog(dialogLine);
        }
    }

    public void ShowDialog(int dialogStartLine)
    {
        dialogBox.SetActive(true);
        int i = dialogStartLine;
        while(i < dialog.Count - 1 || !dialog[i].stopHere)
        {
            if(i > 0)
            {
                if(dialog[i].name != dialog[i - 1].name)
                {
                    StartCoroutine(TypeDialogName(dialog[i].name));
                }
            }
            else
            {
                StartCoroutine(TypeDialogName(dialog[i].name));
            }

            //dialogDelay = true;

            StartCoroutine(TypeDialog(dialog[i].dialog));

            //while(dialogDelay) // || DialogTyping)
            //{

            //}

            while(!(Input.GetAxis("Jump") >= 0.1f) && !(Input.GetAxis("Interact") >= 0.1f))
            {

            }
           
            /*
            if(dialog[i].stopHere)
            {
                //break;

            }
            */
            i++;
        }
        dialogBox.SetActive(false);
    }

    IEnumerator TypeDialogName(string name)
    {
        nameText = dialogBox.transform.GetChild(0).GetComponent<Text>();
        nameText.text = "";
        foreach(char character in name.ToCharArray())
        {
            nameText.text += character;
            yield return new WaitForSeconds(0.05f);
        }
        /*
        for(int i = 0; i < name.Length; i++)
        {
            nameText.text += name[i];
            yield return new WaitForSeconds(0.1f);
        }
        */
    }

    IEnumerator TypeDialog(string myDialog)
    {
        dialogText = dialogBox.transform.GetChild(1).GetComponent<Text>();
        dialogText.text = "";
        foreach(char character in myDialog.ToCharArray())
        {
            dialogText.text += character;
            yield return new WaitForSeconds(0.02f);
        }
        //dialogDelay = false;
    }
}

It’s supposed to show dialog like a typewriter with the option to call a function after displaying text and it works if I unpause in the unity Editor.

Any Ideas?
Thanks in advance.

2

The error tells you exactly what’s wrong. You’re trying to access an index of a collection that is outside of its size.

while(i < dialog.Count - 1 || !dialog[i].stopHere)

What happens when all of your dialogues have stopHere set to false?
Hint: nothing good and probably what causes the error