hi, friends i am stuck with the error when trying install ATG_RUP6 the error is as below...Perl environment not set for Oracle Applications. (TXK libraries not in INCLUDE list) Ensure that Autoconfig has been run and your environment has been sourced correctly. at /u01/app/applvis/visappl/fnd/11.5.0/patch/115/bin/txkprepatchcheck.pl line 131. BEGIN failed--compilation aborted at /u01/app/applvis/visappl/fnd/11.5.0/patch/115/bin/txkprepatchcheck.pl line 141. thanks for your help in advance.. thanks viren