The errors imply that you already have both system preferences in your database from an earlier update or test. I think you can safely ignore them. Hope this helps, Katrin -----Original Message----- From: koha-bounces@lists.katipo.co.nz on behalf of Ranadip Chandra Sent: Sat 24.11.2012 11:17 To: koha@lists.katipo.co.nz Subject: [Koha] upgrading 3.8 to 3.10 while upgrading from koha-3.8.4 to 3.10 the following errors occur : <http://koha.1045719.n5.nabble.com/file/n5734119/Screenshot.png> Please help me. ----- Ranadip Chandra Assistant Librarian, Jadavpur University, Kolkata --700032, Email -- ranadipchandra@gmail.com -- View this message in context: http://koha.1045719.n5.nabble.com/upgrading-3-8-to-3-10-tp5734119.html Sent from the Koha-general mailing list archive at Nabble.com. _______________________________________________ Koha mailing list http://koha-community.org Koha@lists.katipo.co.nz http://lists.katipo.co.nz/mailman/listinfo/koha