Well I added semicolon already. Error at (18,46)
#pragma strict
var Bullet : Rigidbody;
var Spawn : Transform;
var BulletSpeed : float = 1000;
function Start () {
}
function Update () {
if(Input.GetButtonDown("Fire1")){
Fire();
}
}
function Fire(){
var bullet1 : Rigidbody = (Rigidbody)Instantiate(Bullet,Spawn.position,Spawn.rotation);
bullet1.AddForce(transform.forward *BulletSpeed);
}