Unity parsing error

Hi there, I am coding a script that allows a gun to shoot and it comes up with: Parsing Error. Here is my code:

var bullet : Transform;
var Speed = 32000;

private var shooting = false;

var Counter = Time.deltaTime; var RateOfFire = 0.5;

function FixedUpdate (){

  if(Input.GetButtonDown("Fire1")){
      shooting=true;
  }
  
  if(Input.GetButtonUp("Fire1")){
      shooting=false;
  }
  
  if(shooting==true){ 
  Counter += Time.deltaTime;
  
  if(RateOfFire < Counter){
  var shotRapid =Instantiate(bullet, transform.position, Quaternion.identity);
  shotRapid.rigidbody.AddForce(transform.forward * Speed);
  Counter=0;
  } 
  

}

}