Gives error - BCE0005: Unknown identifier: 'GRENADE_AMMO'...Plz help

Questions & Answers
1

var speed = 3.0 ;
var grenadePrefab:Transform ;

function Update ()
{
   //find out if fire button is pressed 
    if(Input.GetButtonDown ( "Fire1"))
	if(Collisions.GRENADE_AMMO > 0)
       {
		var grenade = Instantiate (grenadePrefab , transform.position , Quaternion.identity);
		
		grenade.rigidbody.AddForce(transform.forward * 2000);
		Collisions.GRENADE_AMMO --;
		print("YOU NOW HAVE " + GRENADE_AMMO + " GRENADES ");
	} 		
}
2

It looks like when you’re trying to print

print("YOU NOW HAVE " + GRENADE_AMMO + " GRENADES ");

It should be

print("YOU NOW HAVE " + Collisions.GRENADE_AMMO + " GRENADES ");