找不到NullReferenceException C＃的原因

Question

首先，我知道有一个与此类似的主题，即： Can't find the reason for this NullReferenceException

代码如下：

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

[System.Serializable]
public class SaveLoadMenuButtons : MonoBehaviour
{
    [SerializeField]
    private Transform[] transforms;
    [SerializeField]
    public MenuType currentMenu;
    [SerializeField]
    private static bool logProgress = false;
    [SerializeField]
    private List<string> textos;
    [SerializeField]
    private string gameName = "Your Game";
    [SerializeField]
    private float menuIndex;
    [SerializeField]
    private int maxIndex;
    [SerializeField]
    private int numButtons;

    public void Start()
    {
        showMenu = false;
        textos = new List<string>();
        GuardarCargarBotones.SetActive(false);
        menuIndex = 0;
        firstTime = true;
        hasPressedDirectionalPad = false;
        selectItem = false;
        numButtons = GuardarCargarBotones.transform.childCount;
        transforms = new Transform[numButtons];
        for (int i = 0; i < numButtons; ++i)
        {
            transforms[i] = GuardarCargarBotones.transform.GetChild(i);
        }

        textos.Add("Volver");
        textos.Add("Guardar Visita");
        foreach (LevelSerializer.SaveEntry sg in LevelSerializer.SavedGames[LevelSerializer.PlayerName])
        {
            textos.Add(sg.Caption);
        }
        for (int i = 2; i < numButtons; i++)
        {
            if (textos[(int)menuIndex] != null)
            {
                transforms[i].GetComponentInChildren<UnityEngine.UI.Text>().text = textos[(int)menuIndex];
                if ((i < numButtons - 1) && (menuIndex < textos.Count - 1)) menuIndex++;
            }
        }
        maxIndex = textos.Count;
    }

Unity表示问题在于： transforms[i].GetComponentInChildren<UnityEngine.UI.Text>().text = textos[(int)menuIndex];。

错误是：

  

NullReferenceException：未将对象引用设置为对象的实例

经过一些测试，我发现问题出在函数transforms[i].GetComponentInChildren<UnityEngine.UI.Text>().text

中

之前我遇到过这个错误，通常是由于缺少对象的初始化，但这次我已经初始化了列表。什么是问题的任何想法？我真的找不到它。

谢谢。