I received one warning message. I received the exact same message on my local xampp system where I develop, and the online site itself, hosted by BlueHost.
The jos_users table has no entries yet. So I imagine this is just an edge case. A simple test for an empty table that would preclude the operation would remove the warning I'm thinking ...Warning
JInstaller: :Install: Error SQL Can't DROP 'username'; check that column/key exists
Files Update: SQL error file DB function failed with error number 1091
Can't DROP 'username'; check that column/key exists
Code: Select all
ALTER TABLE `#__users` DROP INDEX `username`;