我正在尝试做一个僵尸波游戏和当前有一个预制为我的敌人.如果我有预制是在场景中，当我击中运行，他们是附加到NavMesh和跟踪球员完美.我想实现这一点，但与敌人正在从一个空的游戏对象，所以我可以得到波产卵.我已经实现了他们产卵，但他们有错误，

"SetDestination" can only be called on an active agent that has been placed on a NavMesh.
UnityEngine.AI.NavMeshAgent:SetDestination(Vector3)
EnemyAI:Update() (at Assets/Scripts/EnemyAI.cs:25)

这是我的EnemyAI脚本

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

public class EnemyAI : MonoBehaviour
{
    public float lookRadius = 10f;

    Transform target;
    NavMeshAgent agent;
    public GameObject Player;
    
    void Start() 
    {
        agent = GetComponent<NavMeshAgent>();
    }
    // Update is called once per frame
    void Update()
    {
        float distance = Vector3.Distance(Player.transform.position, transform.position);
        
        if (distance <= lookRadius)
        {
            agent.SetDestination(Player.transform.position);
        }
    }
}

而我的生成脚本，它被附加到一个空的游戏对象，

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

public class Spawning : MonoBehaviour
{
    public GameObject prefab;
    public int CountofCubes;
    private IEnumerator coroutine;
    public float spawnRate;
    
    IEnumerator Start()
    {
        while (true)
        {
            for (int i = 0; i < CountofCubes; i++)
            {
                    Instantiate(prefab, new Vector3(Random.Range(-25.0f, 25.0f), 0.5f, Random.Range(-25.0f, 25.0f)), Quaternion.identity);
            }
            yield return new WaitForSeconds(spawnRate);
        }
    }   
}

任何帮助将是伟大的谢谢！