When I try to move the Prefabs from my Hierarchy to the Project I get this error

[tai_an_Zhou]

You are trying to save a Prefab that contains the script Mover which does not derive from Monobehavior.

I Googled and used my intuition and it seems that it is because my console has errors? I checked to see that MonoBehaviour was there, it’s probably the same bracket issues?

BTW, I do Google before I write these. It’s just that I am at that stage of learning in which I’m trying to consolidate all my knowledge.

[Brian_Trotter]

Your mover script contains errors, most likely…
Paste in a screen shot of the error (I really want to see the details, which you can get by clicking on the error) as well as your Mover.cs script.

[tai_an_Zhou]

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

namespace RPG.Movement {


   
public class Mover : MonoBehaviour
{
    [SerializeField] Transform target;

       NavMeshAgent navMeshAgent;

        private void Start()
        {
            navMeshAgent = GetComponent<NavMeshAgent>();
        }


        private void Update()
    {
        UpdateAnimator();
    }

        public void StartMoveAction(Vector3 destination)

        {
            GetComponent<Fighter>().Cancel();
            MoveTo(destination);
        }


    public void MoveTo(Vector3 destination)
    {
        GetComponent<NavMeshAgent>().destination = destination;
            navMeshAgent.isStopped = false;
        }

    public void Stop()
        {

            navMeshAgent.isStopped = true;
        }



    private void UpdateAnimator()
    {
        Vector3 velocity = GetComponent<NavMeshAgent>().velocity;
        Vector3 localVelocity = transform.InverseTransformDirection(velocity);
        float speed  = localVelocity.z;
        GetComponent<Animator>().SetFloat("forwardSpeed", speed);
    }
}}

[Brian_Trotter]

Check your error messages, it’s telling ou that there is an issue with the Fighter script. This is preventing compilations.