Made an exact copy of my production forum and (after disabling the Chat and Redis add-ons) see this error:
(second time running php cmd.php xf:upgrade, upgrades ends ok). Same problem when all add-ons are disabled and third try after removing all add-ons:
~/httpdocs$ php cmd.php xf:upgrade
Current version: 2021570
Upgrade target: 2030034 (2.3.0 Beta 4)
Are you sure you want to continue with the upgrade? [y/n] y
Running upgrade to 2.3.0 Alpha, step 1... done.
Running upgrade to 2.3.0...
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(second time running php cmd.php xf:upgrade, upgrades ends ok). Same problem when all add-ons are disabled and third try after removing all add-ons:
~/httpdocs$ php cmd.php xf:upgrade
Current version: 2021570
Upgrade target: 2030034 (2.3.0 Beta 4)
Are you sure you want to continue with the upgrade? [y/n] y
Running upgrade to 2.3.0 Alpha, step 1... done.
Running upgrade to 2.3.0...
Read more
Continue reading...