id summary reporter owner description type status priority component severity resolution keywords cc release 4313 Can't remove custom fields rohfie osimons "I tryed to remove the default custom tickets 'blocking' and 'blockedby'. This causes:[[BR]] {{{ Trac Error TracError: The Trac Environment needs to be upgraded. Run ""trac-admin /var/lib/trac/MyFirstProject upgrade"" }}} Upgrading changes nothing. Deleting the lines from trac.ini manually and upgrade aftwerwards changes nothing too. A restart of apache2 has also no effect.[[BR]] [[BR]] My System: Ubuntu 8.10, Trac 0.11, Apache 2.2.6, user has TRAC_ADMIN rights." defect closed normal CustomFieldAdminPlugin normal invalid 0.11