get this error Assets/PlayerDecection.cs(12,33): error CS1061: Type `AnimalAI' does not contain a definition for `Player' and no extension method `Player' of type `AnimalAI' could be found (are you missing a using directive or an assembly reference?)

viewing the text on this site, the errors are on line 7 and 18

As the error says in the Script AnimalAI you don't have a definition of Player. Without seeing the script it's hard to tell.

@Postive7 using UnityEngine; using System.Collections;

public class PlayerDecection : MonoBehaviour {

 public AnimalAI AIMotor;
 public AudioClip SFX;
 void OnTriggerEnter (Collider col)
 {
 if(col.tag == "Player")
 {
         AIMotor.Player = col.gameObject; // error here
         AIMotor.PlayerOnSight = true;
         GetComponent<AudioSource>().PlayOneShot(SFX);
     
     }

 }
 void OnTriggerExit (Collider col)
 {
     if(col.tag == "Player")
     {
         AIMotor.Player = null;  // error here
         AIMotor.PlayerOnSight = false;
         GetComponent<AudioSource>().Stop();
         
     }
 }

}

I meant the AnaimalAi script.

@Postive7

using UnityEngine; using System.Collections;

public class AnimalAI : MonoBehaviour {

 public Transform[] Waypoints;
 public int NextDest = 0;

 private NavMeshAgent agent;
 public bool PlayerOnSight;

 void Start () {
     agent = GetComponent<NavMeshAgent> ();
 }
 
 // Update is called once per frame
 void Update () {
     if (!PlayerOnSight) {
         if (agent.remainingDistance < 0.5f) {
             agent.SetDestination (Waypoints [NextDest].position);
             NextDest = (NextDest + 1) % Waypoints.Length;
         }
         
         if (agent.remainingDistance > 0.5f) {
             GetComponent<Animation> ().Play ("Horse_Walk");
         }
         if (GetComponent<Animation> ().IsPlaying ("Horse_Walk")) {
             agent.speed = 4f;
         }
     
     
     } 
     else if (PlayerOnSight) 
     {
         Vector3 Direction2Player;
         if (agent.remainingDistance > 0.5f) {
             GetComponent<Animation> ().Play ("Horse_Run");
         }
         if (GetComponent<Animation> ().IsPlaying ("Horse_Run")) {
             agent.speed = 8f;
         }

     }