I have a script that fires raycasts attached to my gun and another script on my enemy that receives the damage from the ray but it does not work, instead I get an error saying

MissingMethodExeption: Method not found: UnityEngine.RaycastHit.GetComponent.

What does this mean and how can I solve it?

These are my scripts,

var amountOfShots = 8;

var reloadTime = 1.5;

function Update (){

if(Input.GetButtonDown("Fire1")){

Shoot();

}

if(Input.GetKeyDown("r")){

Reload();

}

}

function Reload (){

yield WaitForSeconds(reloadTime);

amountOfShots = 8;

}

var shootSound : AudioClip;

var bloodPrefab : Transform;

var sparksPrefab : Transform;

var hit : RaycastHit;

var range = 500;

function Shoot (){

    if(amountOfShots > 0){

    amountOfShots--;

    if(shootSound){

    audio.PlayOneShot(shootSound);

}

if(Physics.Raycast(transform.position, transform.forward, hit, range)){

var rot = Quaternion.FromToRotation(Vector3.up, hit.normal);



if(hit.collider.tag == "Enemy"){

    if(bloodPrefab){

        Instantiate(bloodPrefab, hit.point, rot);

    }

        hit.GetComponent(DamageReciever).health -= 20;

    }else{

    if(sparksPrefab){

        Instantiate(sparksPrefab, hit.point, rot);

        }

    }

}

}

}

And

var health = 100;

function Damage(dmg: int){

health -= dmg; // reduce health

if (health <= 0){ // if health has gone...

Destroy(gameObject); // enemy suicides 

}

}