WEBUTIL within form Problem

Question

dears,
i was design an form that read an excel sheet and upload the excel sheet contant into a table on DB, the excel sheet contain only 2 columns, the problem is when i compile the form CTRL+K there is no errors shown but when the form run i click Browes button but it give me error as below
ORA-06508 PL/SQL could not find program unit being called .
the program unit is client_get_file_name it a package within WEBUTIL attached library, the problem is the form cant call any package or anything from WEBUTIL attached library.
on the form i have 2 buttons
First Button Code: "Browes"
Declare
V_FILE     VARCHAR2(2000);     
BEGIN                              
V_FILE := client_get_file_name(NULL, NULL, NULL, NULL, open_file, TRUE);          
:main_block.FNAME := V_FILE;
EXCEPTION               
WHEN OTHERS THEN
my_alert('There Is Error: '||sqlerrm); -- My_alert(p_text) is program unit
RAISE FORM_TRIGGER_FAILURE;
END;
Second Button code : "Import to DB"
DECLARE
MYFILE CLIENT_TEXT_IO.FILE_TYPE;
filename varchar2(100);
temp varchar2(1000);
t1          varchar2(1000);
t2          varchar2(1000);
cust_id number;
dfrom     date;
dto          date;
ccode     varchar2(100);
r     varchar2(1000);
transfer_status     boolean;
begin
filename := :main_block.fname;
MYFILE := CLIENT_TEXT_IO.FOPEN(filename, 'r');
SYNCHRONIZE;
SYNCHRONIZE;
CLIENT_TEXT_IO.get_line(MYFILE,temp);
t1:=temp;
while temp is not null loop
CLIENT_TEXT_IO.get_line(MYFILE,temp);
t1:=temp;
     select      substr(t1,1,instr(t1,',') -1)
          into           t2
          from           dual;
          ccode:=t2;
          select      substr(t1,instr(t1,',') +1)
          into           t1
          from           dual;                               
          insert into trc_upload -- table on DB
          values(t2,t1);
          commit;
     end loop;
CLIENT_TEXT_IO.FCLOSE(MYFILE);
EXCEPTION
     WHEN DDE.DDE_APP_FAILURE THEN
     my_alert('WINDOWS APPLICATION CANNOT START.');
     WHEN DDE.DDE_PARAM_ERR THEN
     my_alert('A NULL VALUE WAS PASSED TO DDE');
WHEN DDE.DMLERR_NO_CONV_ESTABLISHED THEN
my_alert('DDE CANNOT ESTABLISH A CONVERSATION');
WHEN DDE.DMLERR_NOTPROCESSED THEN
my_alert('A TRANSACTION FAILED');
end;
so please to help me on this issue
Note:
the form deployed under UNIX on Application Server
Thanks
Murad.

Answer 1

From ORA-06508 is seems like WEBUTIL.pll is not found in the runtime-environment.
Possible solutions:
Check if the WEBUTIL.pll (or plx) is on the path where the fmx-File is placed.
If not, check the FORMS90_PATH in your env-File (normally default.env) (you didn't mention your forms-Version, may also be FORMS60_PATH) and if the WEBUTIL.pll is in that path, if not adjust the env-file.
If its still not working, check if WEBUTIL.pll is attached including the full Path (unattach WEBUTIL.pll and reattach it without the path)
Last hint: Case-sensitivity: If you attach in lowercase-letters and library is in uppercase on unix-system the library will not be found at runtime. You won't see how the the pll was attached, best method is to unattach library and reattach it in correct case.
Another remark:
The DDE-Exception seem to be useless, because you don't use DDE (and i would not work for its not available under unix).
Hope this helps