prefab shooting error...help

Questions & Answers
1

Hi all, I followed a lot of tutorial but none resolved my problem. I want to shoot an arrow. I made a spawnPoint empty gameObject, I made my arrow prefab with a cube on wich I added a rigidbody and I linked this script to my spawnPoint…

using UnityEngine;
using System.Collections;

public class prefabShooting : MonoBehaviour {
	public Rigidbody projectilePrefab;
	public int projectileSpeed;
 
	public void Update(){
		if(Input.GetKey("f")){
			Rigidbody instantiatedProjectile;

			projectileSpeed=10;
			instantiatedProjectile=Instantiate(projectilePrefab, transform.position, transform.rotation) as Rigidbody;
			instantiatedProjectile.velocity=transform.TransformDirection (new Vector3(0,0,projectileSpeed));
			//Destroy(clone.gameObject, 5);
		}
	}
}

I press play and the game start but when I press F the game pause and send me this error…

UnassignedReferenceException: The variable projectilePrefab of prefabShooting has not been assigned.
You probably need to assign the projectilePrefab variable of the prefabShooting script in the inspector.

but I affected it. When I unpause the game, an arrow appear and is shot like supposed too
but when I press F again the game pause again and the process start over again and again indefinitely until I stop it… Can somebody help me here before I turn crazy.

2

ok I fond my error…thanks