SQL & PL/SQL

Hi,

Please help me to get rid of this error?
PLS-00320 - the declaration of the type of this expression is incomplete or malformed

PROCEDURE wip_reversal_proc
                ( p_packing_id   IN  packing.packing_id%TYPE,
                  o_return_msg   OUT VARCHAR2 )
IS
 CURSOR c_packing
  IS
     SELECT    p.client
              ,p.order_number
              ,pa.dc
              ,p.status          
              ,o.status
              ,o.bo_child_order_id
       FROM    packing p      
              ,packing_attributes pa
              ,orders o             
      WHERE   p.packing_id	 = p_packing_id
          AND   pa.packing_id	 = p.packing_id
          AND   o.client		 = p.client
          AND   o.order_number = p.order_number;


------------------------------------------------------------------
  -----------------------------MAIN---------------------------------
  ------------------------------------------------------------------
BEGIN
  pack_rec                  c_packing%ROWTYPE;
  
   OPEN c_packing;
     FETCH c_packing 
      INTO  pack_rec;	
  
   v_lock               := TRUE;
   invrec.client       := pack_rec.client;