aio-nextcloud container complains about incompatible PHP version

[mreiche]

After upgrading to Nextcloud AIO v10.3.0, the aio-nextcloud container is waiting in startup with the following message repeating:

This version of Nextcloud is not compatible with PHP>=8.3.<br/>You are currently running 8.3.15.
It seems like your installed Nextcloud is not compatible with the by the container provided PHP version.
This most likely happened because you tried to restore an old Nextcloud version from backup that is not compatible with the PHP version that comes with the container.

Please try to restore a more recent backup which contains a Nextcloud version that is compatible with the PHP version that comes with the container.

If you do not have a more recent backup, feel free to have a look at this documentation: https://github.com/nextcloud/all-in-one/blob/main/manual-upgrade.md

Is there a bug in version detection of 8.3.<br/> or what is happening here and how do I fix it?

[mreiche]

Seems I got it. I've skipped too many updates and some Nextcloud components of the data volume are too old. I followed the instructions https://github.com/nextcloud/all-in-one/blob/main/manual-upgrade.md#method-2 to change the PHP version to 8.2 and performed an upgrade.