Generating enemies dynamically to be attached to enemt prefab

Hello everyone...

i been trying to figure out this issue for few hours...

Im not that good with programming....

I have this script attached to my enemy GameObject.. I made some modification so it could be attached to an enemy prefab so i could generate it dnamically

I have this error which i cant seem to fix it.....?????!!!!!

The script basically do these things....

-Chech if the player whithen range. -Follow the player -if whithen a range it will change the animation -and the attack script work

I keep getting this error:-

Unknown identifier: 'Player' in 5 locations..... All i wanted to do is to generate the Player data dynamically so it will be usable on any object prefab......

Please help me out.....

     var MoveSpeed = 2;
     var MaxDist = 25;
     var MidDist = 8;
     var MinDist = 3; 
     public var Health = 100; 
 
 var player : Transform; //current transform data of this enemy
     var target : Transform; //the enemy's target
     var attackTimer : float = 2;
     var coolDown : float = 2;
     var damage : int = 10;               
                          
     function Start ()
     {
         attackTimer = 0; 
         coolDown = 2.0;
         target = GameObject.FindWithTag("Player").transform;
         Player = transform;//GetComponent("FirstPersonController");// gameObject.FindWithTag("Player");//.transform;
     
     }
      
     function Update ()
     {    
     
     transform.LookAt(target);
     
      
     if(Vector3.Distance(transform.position,Player.position) >= MinDist)
     {
      
     transform.position = transform.position + transform.forward*MoveSpeed*Time.deltaTime;
     
           if(Health >=1){
              animation.Play("walk");
          }else if (Health <= 0){
              animation.CrossFade("die");
              Destroy(gameObject, 2);
          }
 
         if(Vector3.Distance(transform.position,Player.position) <= MidDist && Vector3.Distance(transform.position,Player.position) > MinDist)
         {
             if(Health >=1){
                  animation.CrossFade("charge");
              }else if (Health <= 0){
                  animation.CrossFade("diehard");
                  Destroy(gameObject, 2);
              }
             
         }     
           
                     
         if(Vector3.Distance(transform.position,Player.position) <= MaxDist && Vector3.Distance(transform.position,Player.position) < MidDist)
         {
             if(Health >=1){
             
                  if(attackTimer > 0){
                     attackTimer = attackTimer - Time.deltaTime;
                  }
                 if (attackTimer < 0){
                     attackTimer = 0;
                  }
                 if(attackTimer == 0){
                     Attack();
                     attackTimer = coolDown;
                 }
 
                  
              }else if (Health <= 0){
                  animation.CrossFade("diehard");
                  Destroy(gameObject, 2);
              }
             
         }
      
     } 
     }
 
     public function applyDamage(health : int){
     
         Health = Health - health;
     
     }
     function Attack() {
 
     var go = GameObject.Find("FirstPersonController");
     go.GetComponent(playerHealth).AddjustCurrentHealth(-damage);
     
     } 
 
 function gotHit(){
 animation.CrossFade("resist");
 yield WaitForSeconds(1);
 }
 
 function Test(){
 Debug.Log(this.name);
 }