Unity Mirror网络对象不能在客户端上移动

using UnityEngine;
using Mirror;

public class PlayerController : NetworkBehaviour
{
    public float moveSpeed = 5f;

    void Update()
    {
        if (!isLocalPlayer)
        {
            return;
        }

        float moveHorizontal = Input.GetAxis("Horizontal");
        float moveVertical = Input.GetAxis("Vertical");

        Vector3 movement = new Vector3(moveHorizontal, 0.0f, moveVertical);
        transform.Translate(movement * moveSpeed * Time.deltaTime);
    }
}

[RequireComponent(typeof(NetworkTransform))]
public class PlayerController : NetworkBehaviour
{
    public float moveSpeed = 5f;

    void Update()
    {
        if (!isLocalPlayer)
        {
            return;
        }

        float moveHorizontal = Input.GetAxis("Horizontal");
        float moveVertical = Input.GetAxis("Vertical");

        Vector3 movement = new Vector3(moveHorizontal, 0.0f, moveVertical);
        transform.Translate(movement * moveSpeed * Time.deltaTime);
    }
}

using UnityEngine;
using Mirror;

public class GameManager : NetworkBehaviour
{
    public GameObject playerPrefab;

    public override void OnStartServer()
    {
        base.OnStartServer();
        NetworkServer.RegisterHandler<AddPlayerMessage>(OnAddPlayer);
    }

    private void OnAddPlayer(NetworkConnection conn, AddPlayerMessage msg)
    {
        GameObject player = Instantiate(playerPrefab);
        NetworkServer.AddPlayerForConnection(conn, player);
    }
}