How can I enable my capsule to move; object 'target' not recognized.

Hello there everyone. I'm new to unity and am trying to work through my first tutorial. Unfortunately, I'm having issues with the initial script being able to run. I was able to run this script on the first machine (Machine A), but unable to successfully run the script on the second (Machine B). The only difference when executing and attaching to unity is on Machine B I receive an error message "Field 'Mover.target' is never assigned to, and will always have its default value null." This does not appear on machine A. I'm not sure if the issues are related, but another discrepancy is System.Collection & System.Collections.Generic are also not utilized on Machine B.

The script I'm attempting is below. There is an object called 'target' within the scene. using System.Collections; using System.Collections.Generic; using UnityEngine; using UnityEngine.AI;

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

 void Update()
 {
     if (Input.GetMouseButtonDown(0))
     {
         MoveToCursor();
     }
 }

 private void MoveToCursor()
 {
     Ray ray = Camera.main.ScreenPointToRay(Input.mousePosition);
     RaycastHit hit;
     bool hasHit = Physics.Raycast(ray, out hit);
     if (hasHit)
     {
         GetComponent<NavMeshAgent>().destination = hit.point;
     }
 }

}

Note: I also attempted to run a more simple script to move the capsule to the target, and was unsuccessful on Machine B. This script is receiving the same error. Script below, using System.Collections; using System.Collections.Generic; using UnityEngine; using UnityEngine.AI; public class Mover : MonoBehaviour { [SerializeField] Transform target;

 private void Update()
 {
     GetComponent<NavMeshAgent>().destination = target.position;
 }

}

Please help, I've tried several different methods of movement on this Machine, and have not been successful. This has really stopped me in my tracks for furthering any tutorial.,Hello everyone,