[Koha] Dependency problem when installing Koha 21.11.10 on Debian 11

[Michael Kuhn]

Hi

I've just run into problems when trying to install Koha 21.11.10 on a 
newly installed machine with Debian GNU/Linux 11.

1. This is the content of file "/etc/apt/sources.list.d/koha.list":

deb http://debian.koha-community.org/koha 21.11 main

2. When starting the installation of Koha "apt-get update" gave:

OK:1 http://asi-fs-n.contabo.net/debian bullseye InRelease
OK:2 http://asi-fs-n.contabo.net/debian bullseye-updates InRelease
OK:3 http://security.debian.org/debian-security bullseye-security InRelease
Holen:4 http://debian.koha-community.org/koha 21.11 InRelease [69,8 kB]
Holen:5 http://debian.koha-community.org/koha 21.11/main amd64 Packages 
[25,6 kB]
Es wurden 95,4 kB in 1 s geholt (93,2 kB/s).
Paketlisten werden gelesen… Fertig

2. Unfortunately the installation of Koha ended with the following:

...
Fehler traten auf beim Bearbeiten von:
  rabbitmq-server
  koha-common
needrestart is being skipped since dpkg has failed
E: Sub-process /usr/bin/dpkg returned an error code (1)

3. However, now "apt-get update" only gives:

OK:1 http://asi-fs-n.contabo.net/debian bullseye InRelease
OK:2 http://asi-fs-n.contabo.net/debian bullseye-updates InRelease 

OK:3 http://security.debian.org/debian-security bullseye-security 
InRelease
OK:4 http://debian.koha-community.org/koha 21.11 InRelease 

Paketlisten werden gelesen… Fertig

4. When trying to complete the installation the following errors appear:

$ sudo apt-get install koha-common
Reading package lists... Done
Building dependency tree... Done
Reading state information... Done
koha-common is already the newest version (21.11.10-1).
0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.
2 not fully installed or removed.
After this operation, 0 B of additional disk space will be used.
Do you want to continue? [Y/n]
Setting up rabbitmq-server (3.8.9-3) ...
Job for rabbitmq-server.service failed because the control process 
exited with error code.
See "systemctl status rabbitmq-server.service" and "journalctl -xe" for 
details.
invoke-rc.d: initscript rabbitmq-server, action "start" failed.
* rabbitmq-server.service - RabbitMQ Messaging Server
      Loaded: loaded (/lib/systemd/system/rabbitmq-server.service; 
enabled; vendor preset: enabled)
      Active: activating (auto-restart) (Result: exit-code) since Wed 
2022-08-03 14:30:23 CEST; 11ms ago
     Process: 3343 ExecStart=/usr/lib/rabbitmq/bin/rabbitmq-server 
(code=exited, status=1/FAILURE)
    Main PID: 3343 (code=exited, status=1/FAILURE)
         CPU: 5.506s

Aug 03 14:30:23 bib-katalog.sintiundroma.de systemd[1]: 
rabbitmq-server.service: Failed with result 'exit-code'.
Aug 03 14:30:23 bib-katalog.sintiundroma.de systemd[1]: Failed to start 
RabbitMQ Messaging Server.
Aug 03 14:30:23 bib-katalog.sintiundroma.de systemd[1]: 
rabbitmq-server.service: Consumed 5.506s CPU time.
dpkg: error processing package rabbitmq-server (--configure):
  installed rabbitmq-server package post-installation script subprocess 
returned error exit status 1
dpkg: dependency problems prevent configuration of koha-common:
  koha-common depends on rabbitmq-server; however:
   Package rabbitmq-server is not configured yet.

dpkg: error processing package koha-common (--configure):
  dependency problems - leaving unconfigured
Errors were encountered while processing:
  rabbitmq-server
  koha-common
E: Sub-process /usr/bin/dpkg returned an error code (1)

5. How can I complete this incomplete installation?

Best wishes: Michael
-- 
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