I am trying to upgrade an old (v.1.22.15 on PHP5.7 and mysql) mediawiki to MW1.33.0 on PHP7.3.9. I have done this successfully for 2 different wikis today, but on the third wiki it fails at the "Upgrade existing installation" stage, with the following errors:
Creating actor entries for all registered users
... 1 - 72
Completed actor creation, added 5 new actor(s)
Beginning migration of revision.rev_user and revision.rev_user_text to revision_actor_temp.revactor_actor
User name "4Shades" is usable, cannot create an anonymous actor for it. Run maintenance/cleanupUsersWithNoId.php to fix this situation.
... plus many more lines like this, then
An error occurred:
A database query error has occurred. Did you forget to run your application's database schema updater after upgrading?
Query: INSERT INTO `actor` (actor_name) VALUES ('')
Error: 1062 Duplicate entry '' for key 'actor_name' (localhost)
I have tried opening a shell and running the script maintenance/cleanupUsersWithNoId.php but it crashes immediately. Can anyone give me any pointers here? I am happy to edit tables etc manually if need be. Perhaps I just need to kill all edit archive records to remove anonymous users from the DB and restart the conversion?
Many thanks in advance,