Problem with PhotonView.RPC

I use this to run the RPC

photonView.RPC("Aiming", PhotonTargets.All, 0);

But I get the error:
PhotonView has no method “Aiming” that takes 1 arguments: Int32

And this is the RPC:

    [PunRPC]
    IEnumerator Aiming() 
{
GameObject bulletz = Instantiate(trunk, y.transform.position, y.transform.rotation) as GameObject;
                shotsound.Play();
                yield return new WaitForSeconds(1);
                Destroy(bulletz);
}

Anyone know what the problem is? Thanks

I believe the the RPC is

 photonView.RPC(RPC, Target, Arguments);

and your RPC Aiming has no arguments so change the rpc call to

 photonView.RPC("Aiming", PhotonTargets.All);

and this should work if you want to add arguments as well then you need to add it to the RPC so you could do this for example

 photonView.RPC("Aiming", PhotonTargets.All, 5f);

     [PunRPC]
     IEnumerator Aiming(Float waitTime) 
 {
 GameObject bulletz = Instantiate(trunk, y.transform.position, y.transform.rotation) as GameObject;
                 shotsound.Play();
                 //the variable has been added here
                 yield return new WaitForSeconds(waitTime);
                 Destroy(bulletz);
 }