Debian package conflict. How to update owncloud?

Hello,

I have a problem with my owncloud server (on Apache). For many years, the updates via aptitude went fine and I always had the latest owncloud verison.
However, now I can't update owncloud, because there are package conflicts if I try to do so. It seems that owncloud becomes incompatible with its own packages.
When I try to mark it for installing, the aptitude problem resolver will give only dumb suggestions like deleting the owncloud package.

I have Debian 8.
Owncloud is currently 8.1.9

aptitude writes following (translated from German)

Depends from (2)
-- owncloud-deps-php5 (>= 9.1.4) | owncloud-deps (not satisfied)
-- owncloud-files (>= 9.1.4) (not satisfied)

Packages which are dependent from owncloud (2)
-- Upgrades
owncloud-apps
i owncloud-apps 0~~20141022-1
-- Depends on
i owncloud-apps 0~~20141022-1

Versions of owncloud (4)
p 7.0.4+dfsg-4~deb8u3
p 7.0.4+dfsg-4~deb8u4
i 8.1.9-12.1
p 9.1.4-1.1

As soon as I mark owncloud as update, I get following conflict at package owncloud-files

Collission with
--- owncloud (<= 9.0.99)
-- owncloud-config-apache (<= 9.00.99) (not satisfied)
-- owncloud-server (<= 9.00.99) (not satisfied)

But isn't owncloud-config-apache and owncloud-server what I need???? Or is that now everything in the owncloud package?

Following configuration seems to work, but I am anxious about executing it:

-- Packages which are automatically installed, to avoid depend conflicts:
piA owncloud-files
-- Packages which get installed
pi owncloud-deps-php5
-- Packages which get removed
id owncloud-config-apache
id owncloud-server
-- Package which get updated
iu owncloud

There is an open bugreport about this reported to the maintainer of that package available here:

And what do I need to do now?
I am suffering from a bug and I really need the new OwnCloud version.

You need to wait until the maintainer of the package is noticing this bug and fixing this broken dependency.

Hello,

thank you for your reply.

I have send a bugreport to the Debian BTS ( https://www.mail-archive.com/debian-bugs-dist@lists.debian.org/msg1500098.html ) and they sent me following reply:

"There is no ownlcoud package in Debian anymore exactly for a (different) upgrade problem; so it's hard to think this is a problem to be reported to Debian's BTS.
Please bring it to whoever is providing you the package."

I am not sure where my packages come from. I think I do receive them from OwnCloud directly.
So what's wrong here?

Here are my files:

/etc/apt/sources.list

deb http ://security.debian.org/ jessie/updates main
deb-src http ://security.debian.org/ jessie/updates main

deb http ://ftp.de.debian.org/debian jessie-updates main
deb-src http ://ftp.de.debian.org/debian jessie-updates main

deb http ://ftp.de.debian.org/debian jessie main contrib non-free
deb-src http ://ftp.de.debian.org/debian jessie main contrib non-free

/etc/apt/sources.list.d/owncloud.list

deb http ://download.owncloud.org/download/repositories/stable/Debian_8.0/ /

Also, my package "owncloud" says:

Maintainer: jw@owncloud.com

(see also my screenshot)

and, also on my screenshot it does say that it depends on owncloud-deps (which is wrong according to the bugreport you showed me)

So it seems it is the official OwnCloud package I have, and it is wrong!

Exactly, thats why i have pointed you already to an existing bugreport to the ownCloud packager above [1].

[1]

Seems that got fixed now:

Hello,

I've updated the package information from the repository, and I can verify that this fix was implemented.

But I still can't upgrade.

Here is the problem:

owncloud depends on owncloud-deps-php5 and owncloud-files.
-- Both dependencies are not satisfied on my computer.

Ok, so I mark owncloud-deps-php5 for installing.
But when I do this (or if I directly mark owncloud-files for installing), I get another conflict.

The to-be-installed package owncloud-files is now broken.
It colldies with the packages owncloud-apache-config (<= 9.00.99) and owncloud-server (<= 9.00.99).

Again my question: Are owncloud-apache-config and owncloud-server not important anymore (i.e. will they be replaced by the package owncloud)? Or will I break my server if I remove them?

There are only the following packages provided by the official repositories:

owncloud
owncloud-files
owncloud-deps-php5
owncloud-deps-php7

Everything else are 3rdparty / outdated / whatever.

On a somewhat related note, I ran into a package issue when upgrading from 9.1.6 to 10.0.3 on Debian 8 and posted my solution here: https://central.owncloud.org/t/upgrading-from-9-1-to-10-on-ubuntu-16-04/8048/5