Procedure Problem

Hi,
I have created a proceudre
this is the procedure

procedure on_suppmst (suppcd IN po.suppmst.suppcode%type, supp_row out po.suppmst%rowtype, supp_found out boolean) is begin
supp_found:=true;
select * into supp_row from po.suppmst
where suppcode = suppcd;

exception

   when no_data_found then
    supp_found :=false;
    supp_row := NULL;
end;

I get the following error
"PL/SQL CHECK #22219 PLEASE INFORM YOUR ORACLE REPRESENTATIVE" I have checked the error mesage manual the number does not exist Can anyone help
Thanks in Advance
-Dinyar

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