Can't install Discourse

Support apps
,
1

What type of hardware are you using: Bare Metal
What YunoHost version are you running: 12.1.15.1
What app is this about: Discourse 3.4.2~ynh2

Describe your issue

Can’t install the app.

Share relevant logs or error messages

https://paste.yunohost.org/raw/ilifuxoxup

Warning: Here's an extract of the logs before the crash. It might help debugging the error:
Info: DEBUG - + [[ -n advancecomp brotli gifsicle jhead jpegoptim libapr1-dev libjemalloc-dev libreadline-dev libunwind-dev libxslt1-dev optipng pngcrush libbz2-dev librsvg2-dev postgresql-server-dev-all yarn  ]]
Info: DEBUG - + ynh_package_install advancecomp brotli gifsicle jhead jpegoptim libapr1-dev libjemalloc-dev libreadline-dev libunwind-dev libxslt1-dev optipng pngcrush libbz2-dev librsvg2-dev postgresql-server-dev-all yarn --dry-run
Info: DEBUG - + sed --quiet '/Reading state info/,$p'
Info: DEBUG - + ynh_apt --no-remove --option Dpkg::Options::=--force-confdef --option Dpkg::Options::=--force-confold install advancecomp brotli gifsicle jhead jpegoptim libapr1-dev libjemalloc-dev libreadline-dev libunwind-dev libxslt1-dev optipng pngcrush libbz2-dev librsvg2-dev postgresql-server-dev-all yarn --dry-run
Info: DEBUG - + ynh_wait_dpkg_free
Info: DEBUG - + grep -v 'fix-broken\|Reading state info'
Info: DEBUG - + return 0
Info: DEBUG - + apt-get --assume-yes --quiet -o=Acquire::Retries=3 -o=Dpkg::Use-Pty=0 --no-remove --option Dpkg::Options::=--force-confdef --option Dpkg::Options::=--force-confold install advancecomp brotli gifsicle jhead jpegoptim libapr1-dev libjemalloc-dev libreadline-dev libunwind-dev libxslt1-dev optipng pngcrush libbz2-dev librsvg2-dev postgresql-server-dev-all yarn --dry-run
Info: WARNING - The following packages have unmet dependencies:
Info: WARNING -  libapr1-dev : Depends: libapr1 (= 1.7.2-3+deb12u1) but it is not going to be installed
Info: WARNING -                Depends: libsctp-dev but it is not going to be installed
Info: WARNING -  librsvg2-dev : Depends: gir1.2-rsvg-2.0 (= 2.54.7+dfsg-1~deb12u1) but it is not going to be installed
Info: WARNING -                 Depends: libcairo2-dev (>= 1.2.0) but it is not going to be installed
Info: WARNING -                 Depends: libgdk-pixbuf-2.0-dev (>= 2.23.5-2) but it is not going to be installed
Info: WARNING -                 Depends: libglib2.0-dev (>= 2.50.0) but it is not going to be installed
Info: WARNING -  postgresql-common-dev : Breaks: postgresql-server-dev-all (< 269) but 248 is to be installed
Info: WARNING -  postgresql-server-dev-all : Depends: postgresql-common (= 248) but 281.pgdg120+1 is to be installed
Info: WARNING -                              Depends: postgresql-server-dev-15 but it is not going to be installed
Info: DEBUG - + ynh_die '--message=Unable to install dependencies'
Info: DEBUG - + ynh_exit_properly
2

Would you mind sharing the list of apps installed on your server? One of them depends on outdated PostgreSQL 11.

3

you can do so using the yunohost app list command btw

can you also provide what apt-cache rdepends postgresql | grep ynh-deps is saying?

4 
yunohost app list|grep id:

    id: adventurelog
    id: code-server
    id: cyberchef
    id: diagramsnet
    id: dokuwiki
    id: drupal
    id: fail2ban-web
    id: glances
    id: homeassistant
    id: ifconfig-io
    id: immich
    id: it-tools
    id: jellyfin
    id: kavita
    id: librespeed
    id: localai
    id: mediawiki
    id: mongo-express
    id: navidrome
    id: netdata
    id: nextcloud
    id: ollama
    id: owncloud
    id: pgadmin
    id: photoprism
    id: phpmyadmin
    id: phpsysinfo
    id: piwigo
    id: pydio
    id: qr
    id: readeck
    id: samba
    id: scrutiny
    id: silverbullet
    id: snappymail
    id: stirling-pdf
    id: syncthing
    id: tooljet
    id: traccar
    id: unattended_upgrades
    id: webmin
    id: wordpress
    id: xwiki

apt-cache rdepends postgresql | grep ynh-deps

  xwiki-ynh-deps
  traccar-ynh-deps
  tooljet-ynh-deps
  readeck-ynh-deps
  pgadmin-ynh-deps
  immich-ynh-deps
  adventurelog-ynh-deps
1 Like
5

Thanks!

From what i see, all of your apps should be fine

Are they all up to date?

What is the result of yunohost tools migrations state?

6

Yes. And all of them fresh installed and working, on a fresh installation of YunoHost 12.1.15.1.

yunohost tools migrations state

migrations:
  0027_migrate_to_bookworm: skipped
  0028_delete_legacy_xmpp_permission: skipped
  0029_postgresql_13_to_15: skipped
  0030_rebuild_python_venv_in_bookworm: skipped
  0031_terms_of_services: skipped
  0032_firewall_config: skipped
  0033_rework_permission_infos: skipped
  0034_fix_missing_admins_aliases: skipped
  0035_fix_apps_nodejs_version: skipped
7

It says postgresql-common-dev will break postgresql-server-dev-all which got me thinking: how exactly did you install base Debian for YunoHost?

I’m asking because postgresql-common-dev is available in Trixie+, which is an unsupported version.

What’s the output of uname -a? What about lsb_release -a?

8

I did a fresh installation of Debian 12 Netinstaller, a basic installation without anything except XFCE.

Everything related to Postgres was created using yunohost app install.

uname -a

Linux ynh.maindomain.tld 6.1.0-38-amd64 #1 SMP PREEMPT_DYNAMIC Debian 6.1.147-1 (2025-08-02) x86_64 GNU/Linux


lsb_release -a

No LSB modules are available.
Distributor ID: Debian
Description:    Debian GNU/Linux 12 (bookworm)
Release:        12
Codename:       bookworm
1 Like
9

Hello, I am experiencing the exact same issue as described in this thread.

My Yunohost installation is failing when I try to install the Discourse app due to a dependency conflict with PostgreSQL.

Here is a summary of my problem:

  • Yunohost Version: (12.1.17.1 (stable))
  • App Version: Discourse 3.4.2~ynh2
  • Error: The apt installation process is failing because of a version conflict with postgresql-common.

My system has a newer version of postgresql-common installed, which seems to be from an external repository, while the Discourse app’s required postgresql-server-dev-all package expects an older, specific version.

Here are the relevant outputs from my terminal that clearly show the conflict:

apt-cache show postgresql-server-dev-all output:

Package: postgresql-server-dev-all Version: 248 Depends: make:any, postgresql-common (= 248), postgresql-server-dev-15

dpkg -l | grep postgresql-common output:

ii postgresql-common 278.pgdg120+1 all PostgreSQL database-cluster manager

ii postgresql-common-dev 278.pgdg120+1 all extension build tool for multiple PostgreSQL versions

I have already checked /etc/apt/sources.list and all files in /etc/apt/sources.list.d/, but I can’t find any file with the pgdg repository configured.

Any advice on how to resolve this specific dependency conflict would be greatly appreciated. Thanks!

root@uwu:~# uname -a
Linux uwu.noho.st 6.1.0-38-amd64 #1 SMP PREEMPT_DYNAMIC Debian 6.1.147-1 (2025-08-02) x86_64 GNU/Linux
root@uwu:~# lsb_release -a
No LSB modules are available.
Distributor ID: Debian
Description:    Debian GNU/Linux 12 (bookworm)
Release:        12
Codename:       bookworm
10

During my tests to convert the app to helpers2.1 I had a similar issue which I resolved by removing postgresql-server-dev-all from the manifest.

You can try to install my branch (see pr - upgrade from an older version will probabily fail but a new instance should work).

It will eventually be merged so you can also wait for it to reach the master branch

2 Likes
11

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