Photon RPC problem...

ive got this error: PhotonView with ID 5001 has no method "EquipItemShared" that takes 1 argument(s): String

That is my script:

 if(GUILayout.Button ("Equip"))
                                     {
                             
                                         //Load the item.
                                         
                                         callEquipItem(PhotonTargets.Others,lastitemPressed.GetComponent<I_info>().itemName);
                                         
                                         if(photonView.isMine)
                                         equipItem(lastitemPressed.GetComponent<I_info>().itemName);
                                         
 }
 
 
 _________________________________________________________
 
 
 
     void equipItem(string itemNameShared)
 
     {
         //Will quip the selected item.
         GameObject weaponUsed=PhotonNetwork.Instantiate(itemNameShared,GetComponent<P_combat>().handBone.transform.position,GetComponent<P_combat>().handBone.transform.rotation,0);
         weaponUsed.transform.parent=GetComponent<P_combat>().handBone.transform;
         GetComponent<P_combat>().equippedWeapon=weaponUsed;
     }
     
     [RPC]
     
     void EquipItemShared(PhotonMessageInfo info, string NameShared)
     {
         if(info.sender.ID != PhotonNetwork.player.ID)
         {//Will show item equipment for other players.
         equipItem(NameShared);
         }   
     }
 
     
 
     void callEquipItem(PhotonTargets target,string itemNameShared)
     {//Will call "Fire" for the given targets.
         photonView.RPC("EquipItemShared",target,itemNameShared);
     }

It happends when I press the equip button as you see.