My Upgrade failed with the message:
You have incompatible or missing apps enabled that could not be found or updated via the marketplace.
The suggested solution in the message is:
Please install or update the following apps manually or disable them with: occ app:disable templateeditor …
What can I do?
Disable the apps with
sudo -u www-data php occ app:disable <app_name>
After the upgrade is successful you can re-enable the apps with:
sudo -u www-data php occ app:enable <app_name>