after performing nc-update-nextcloud --> “0” (= newest version) and thereby upgrading from NC 14.04 to 15.06 the Calendar app (now version 1.6.4) and the External User Support app (now version 0.6.1) are deactivated with the following comment: “server version 14 or lower is required”. It cannot be reactivted as the button for this is not working. I am using a Raspberry Pi 3 and the NextcloudPi version is also up-to-date.
Accessing und changing calendar data thru CalDav from a smartphone still works (as the calendar app seems to be simply a web user interface). Unfortunately a few settings like changing the calendar sharing are only accessible thru the calendar app. So it would be nice to have it back.
The problem seems a little strange as the official Nextcloud App Store seems to state that calendar app version 1.6.4 is suitable for Nextcloud version 15 and the calendar app was update by the author just a week ago. Perhaps it is a problem only of the ARM plattform?
Any ideas how to reactivate the calendar app?
Thanks and best regards