Error in Oracle Form 10g while deploying it on Application server

Question

hiiiii
I have a form in 10g in which i am trying to produce data in excel format through ole2..
the form is working fine when i am running it on form builder....but when i deploy this form on oracle 10g application server,the form is getting run through client pc but the excel sheet is not getting opened & i am getting error like
ora-305500_
the code which i wrote to access the excel worksheet is as follows::
declare
application OLE2.OBJ_TYPE;
workbook OLE2.OBJ_TYPE;
workbooks OLE2.OBJ_TYPE;
worksheet OLE2.OBJ_TYPE;
worksheets OLE2.OBJ_TYPE;
Range OLE2.OBJ_TYPE;
cell OLE2.OBJ_TYPE;
font OLE2.OBJ_TYPE;
args OLE2.List_Type;
col number;
Vfy varchar2(7);
vl number;
vl1 number;
NYR NUMBER;
RowNo Number;
slno Number;
ColNo Number;
cmtamt Number;
AmtFY number;
AmtBal number;
xlPagesetup ole2.obj_type;
cursor cur_rec is
SELECT ln_typ,ln_typ_dsc from tla_ln_typ
order by ln_typ;
begin
message('step1');
application:=OLE2.CREATE_OBJ('Excel.Application');
message('step2');
OLE2.SET_PROPERTY(application, 'Visible', 'True');
message('step3');
workbooks := OLE2.GET_OBJ_PROPERTY(application, 'Workbooks');
message('step4');
workbook := OLE2.INVOKE_OBJ(workbooks,'Add');
message('step5');
worksheets := OLE2.GET_OBJ_PROPERTY(workbook, 'Worksheets');
message('step6');
worksheet := OLE2.INVOKE_OBJ(worksheets,'Add');
message('step7');
PageSetup(Worksheet);
rowno := 1;
SetCellText(worksheet,rowno,1,'ln_typ');
SetCellBold(worksheet,rowno,1);
SetCellText(worksheet,rowno,2,'dsc');
SetCellBold(worksheet,rowno,2);
          rowno := rowno + 1;
colno :=1;
SetCellWidth(Worksheet,rowno,colno,10);
SetCellWidth(Worksheet,rowno,colno+1,20);
for rec in cur_rec loop
                         SetCellText(worksheet,rowno,colno,rec.ln_typ);          
                         SetCellText(worksheet,rowno,colno+1,''''||rec.ln_typ_dsc);
                         rowno:=rowno+1;
end loop;
rowno:=rowno+1;
OLE2.RELEASE_OBJ(worksheet);
OLE2.RELEASE_OBJ(worksheets);
OLE2.RELEASE_OBJ(workbook);
OLE2.RELEASE_OBJ(workbooks);
OLE2.RELEASE_OBJ(application);
END;

Answer 1

You are using OLE2. That means that you are using OLE2 and Excel on the SERVER, not on your PC. You have to use CLIENT_OLE2 via Webutil as Sarah suggested.
Please go the the Forms documentation about Webutil. It has been discussed soooooo many times.