OracleParameter op = null;
   OracleDataReader dr = null;

   OracleCommand cmd = new OracleCommand();

   cmd.CommandText = "pkg_prov_index.getNextPanel";
   cmd.CommandType = CommandType.StoredProcedure;


  op = new OracleParameter("pCurrentPanelId", OracleDbType.Int32);
  op.Direction = ParameterDirection.Input;
  op.Value = masterProviderIndex.CurrentPanelId;
  cmd.Parameters.Add(op);
  op = new OracleParameter("pRefCursor", OracleDbType.RefCursor);
  op.Direction = ParameterDirection.inputOutput;
  cmd.Parameters.Add(op);
  dr =cmd.ExecuteReader(); Here , it gives me an error that says ORA-06550: line 1,   column 37: PLS-00201: identifier 'XYZ' must be declared at
  if(dr.HasRows)
  {while(dr.Read())
     {
     }
  }