Resolved My AI isn't working help me pls

hello I have a problem with my ai system he is not moving at all or doing anything and I have a navmesh surface in my game what can I do? pls help me

here is the code:

Code (CSharp):

1. using UnityEngine;
2. using UnityEngine.AI;
3.  
4. public class AIController : MonoBehaviour
5. {
6.     public NavMeshAgent agent;
7.     public Transform player;
8.     public GameObject projectile;
9.  
10.     public LayerMask whatIsGround, whatIsPlayer;
11.     public Vector3 walkPoint;
12.  
13.     public float walkPointRange;
14.     public float timeBetweenAttacks;
15.     public float sightRange, attackRange;
16.     public float health;
17.  
18.     public bool playerInSightRange, playerInAttackRange;
19.  
20.     private bool walkPointSet;
21.     private bool alreadyAttacked;
22.  
23.     private void Awake()
24.     {
25.         player = GameObject.Find("PlayerManager").transform;
26.         agent = GetComponent<NavMeshAgent>();
27.     }
28.  
29.     private void Update()
30.     {
31.         Debug.DrawRay(transform.position + transform.up / 4.5f, transform.forward * 5, Color.green, 2f, false);
32.  
33.         playerInSightRange = Physics.CheckSphere(transform.position, sightRange, whatIsPlayer);
34.         playerInAttackRange = Physics.CheckSphere(transform.position, attackRange, whatIsPlayer);
35.  
36.         if (!playerInSightRange && !playerInAttackRange) Patroling();
37.         if (playerInSightRange && !playerInAttackRange) ChasePlayer();
38.         if (playerInAttackRange && playerInSightRange) AttackPlayer();
39.     }
40.  
41.     private void Patroling()
42.     {
43.         if (!walkPointSet) SearchWalkPoint();
44.  
45.         if (walkPointSet)
46.             agent.SetDestination(walkPoint);
47.  
48.         Vector3 distanceToWalkPoint = transform.position - walkPoint;
49.  
50.         if (distanceToWalkPoint.magnitude < 1f)
51.             walkPointSet = false;
52.     }
53.  
54.     private void SearchWalkPoint()
55.     {
56.         float randomZ = Random.Range(-walkPointRange, walkPointRange);
57.         float randomX = Random.Range(-walkPointRange, walkPointRange);
58.  
59.         walkPoint = new Vector3(transform.position.x + randomX, transform.position.y, transform.position.z + randomZ);
60.  
61.         if (Physics.Raycast(walkPoint, -transform.up, -2, whatIsGround))
62.             walkPointSet = true;
63.     }
64.  
65.     private void ChasePlayer()
66.     {
67.         agent.SetDestination(player.position);
68.     }
69.  
70.     private void AttackPlayer()
71.     {
72.         agent.SetDestination(transform.position);
73.  
74.         transform.LookAt(player);
75.  
76.         if (!alreadyAttacked)
77.         {
78.             Rigidbody rb = Instantiate(projectile, transform.position, Quaternion.identity).GetComponent<Rigidbody>();
79.  
80.             rb.AddForce(transform.forward * 32f, ForceMode.Impulse);
81.             rb.AddForce(transform.up * 32f, ForceMode.Impulse);
82.  
83.             alreadyAttacked = true;
84.             Invoke(nameof(ResetAttack), timeBetweenAttacks);
85.         }
86.     }
87.  
88.     private void ResetAttack()
89.     {
90.         alreadyAttacked = false;
91.     }
92.  
93.     public void TakeDamage(int damage)
94.     {
95.         health -= damage;
96.  
97.         if (health <= 0) Invoke(nameof(DestroyEnemy), .5f);
98.     }
99.  
100.     private void DestroyEnemy()
101.     {
102.         Destroy(gameObject);
103.     }
104.  
105.     private void OnDrawGizmosSelected()
106.     {
107.         Gizmos.color = Color.red;
108.         Gizmos.DrawWireSphere(transform.position, attackRange);
109.         Gizmos.color = Color.white;
110.         Gizmos.DrawWireSphere(transform.position, sightRange);
111.     }
112. }

 

never mined I fixed that already

 

how did you fixed that? I have similar problem