之前一切正常，但现在总会给我CS0246错误

如何解决之前一切正常，但现在总会给我CS0246错误

我想在游戏中制作一个任务系统，一切正常，但是现在当我添加另一个脚本时，团结一致给我这个错误：Assets \ QuestManager.cs（6,12）：error CS0246：类型或名称空间名称找不到“ QuestObject”（您是否缺少using指令或程序集引用？）我该如何解决？很抱歉，如果是斯洛伐克写错了话

在此脚本中告诉我错误

using System.Collections;
using UnityEngine;

public class QuestManager : MonoBehavIoUr
{
    public QuestObject[] quests;
    public bool[] questCompleted;

    public DialogueManager theDM;

    public string itemCollected;

    public string enemyKilled;
    
    // Start is called before the first frame update
    void Start()
    {
        questCompleted = new bool[quests.Length];
    }

    // Update is called once per frame
    void Update()
    {
        
    }

    public void ShowQuestText(string questText)
    {
       theDM.dialogLines = new string[1];
       theDM.dialogLines[0] = questText;

        theDM.currentLine = 0;
        theDM.ShowDialogue();
    }

  
}

我想参考这个脚本

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

public class QuestObject : MonoBehavIoUr
{
    public int questNumber;

    public QuestManager theQM;

    public string startText;
    public string endText;

    public bool isItemQuest;
    public string targetItem;

    public bool isEnemyQuest;
    public string targetEnemy;
    public int enemiesToKill;
    private int enemyKillCount;

    // Start is called before the first frame update
    void Start()
    {
        
    }

    // Update is called once per frame
    void Update()
    {
        
        if(isItemQuest)
        {
            if(theQM.itemCollected == targetItem)
            {
                theQM.itemCollected = null;

                EndQuest();
            }
        }

        if(isEnemyQuest)
        {
            if(theQM.enemyKilled == targetEnemy)
            {
                theQM.enemyKilled = null;

                enemyKillCount++;
            }

            if(enemyKillCount >= enemiesToKill)
            {
                EndQuest();
            }
        }


    }

    public void StartQuest()
    {
        theQM.ShowQuestText(startText);
    }

    public void EndQuest()
    {

        theQM.ShowQuestText(endText);
        theQM.questCompleted[questNumber] = true;
        gameObject.SetActive(false);
    }
}

有人可以帮我吗？