Nothing provides <blah>

English Open Build Service (OBS)
1

My packaging skills are a bit rusty and I’m hitting a bit of a wall here.

Background:

The “official” OpenSUSE ejabberd package does not include SQLite3 support, so I am having a go at packaging it myself, here: https://build.opensuse.org/project/show/home:licehunter:staging

I have managed to build erlang and erlang-rebar on the same repo. I haven’t quite yet managed to build erlang-sqlite3 (sources are on my local osc client, not yet committed to OBS) but that’s a different issue.

Problem:

I am trying to build ejabberd there, as a _link to the official package in https://build.opensuse.org/package/show/devel:languages:erlang/ejabberd

And I am failing miserably.

> osc build
Building ejabberd.spec for openSUSE_Factory/x86_64
Getting buildinfo from server and store to ~/osc/home:licehunter:staging/ejabberd/.osc/_buildinfo-openSUSE_Factory-x86_64.xml
Getting buildconfig from server and store to ~/osc/home:licehunter:staging/ejabberd/.osc/_buildconfig-openSUSE_Factory-x86_64
buildinfo is broken... it says:
unresolvable: nothing provides erlang-lager-devel >= 3.6.10
      nothing provides erlang-p1_utils-devel >= 1.0.15
      nothing provides erlang-p1_cache_tab-devel >= 1.0.19
      nothing provides erlang-fast_tls-devel >= 1.1.1
      nothing provides erlang-stringprep-devel >= 1.0.16
      nothing provides erlang-fast_xml-devel >= 1.1.36
      nothing provides erlang-xmpp-devel >= 1.3.4
      nothing provides erlang-fast_yaml-devel >= 1.0.19
      nothing provides erlang-jiffy-devel >= 0.14.11
      nothing provides erlang-p1_oauth2-devel >= 0.6.5
      nothing provides erlang-pkix-devel >= 1.0.2
      nothing provides erlang-jose-devel >= 1.8.4
      nothing provides erlang-eimp-devel >= 1.0.11
      nothing provides erlang-mqtree-devel >= 1.0.3
      nothing provides erlang-stun-devel >= 1.0.28
      nothing provides erlang-esip-devel >= 1.0.29
      nothing provides erlang-p1_mysql-devel >= 1.0.11
      nothing provides erlang-p1_pgsql-devel >= 1.1.8
      nothing provides erlang-epam-devel >= 1.0.6
      nothing provides erlang-ezlib-devel >= 1.0.6
      nothing provides erlang-luerl-devel >= 0.3

The thing is, if you look at my project’s meta, it should be picking up those packages from the devel:languages:erlang project.

So what exactly am I doing wrong here?

2

Hi
Just because it’s a link, doesn’t mean it will use the link repository, unless you add to your project via ‘add repositories’ and manually add the target via ‘expert mode’ button at the bottom of the page, else you need to use --alternative-project in your osc command…


osc build --alternative-project devel:languages:erlang

Or add;

Screenshot from 2019-07-16 08-36-54.png
Screenshot from 2019-07-16 08-36-54.png990×334 25.4 KB

3

Thank you Malcom.

I don’t understand: if I build locally via:

~/osc/home:licehunter:staging/erlang-sqlite3> osc build --alternative-project home:Ledest:erlang:22

it works no bother. But if I configure the appropriate projects on the OBS interface as suggested (https://build.opensuse.org/repositories/home:licehunter:staging/erlang-sqlite3) it still says “unresovlable” (https://build.opensuse.org/package/show/home:licehunter:staging/erlang-sqlite3).

4

Hi
So where do those dependencies exist? I see none anywhere on OBS?


osc se erl_interface
No matches found for 'erl_interface' in projects
No matches found for 'erl_interface' in packages

osc se erts-devel
No matches found for 'erts-devel' in projects
No matches found for 'erts-devel' in packages

osc se epmd
No matches found for 'epmd' in projects
No matches found for 'epmd' in packages

cnf epmd

The program 'epmd' can be found in the following package:
  * erlang-epmd  path: /usr/bin/epmd

So looks like you need to check your BuildRequires for the correct packages :wink:

5

Those dependencies come from

home:Ledest:erlang:22

(they’re built as subpackages of erlang).

6

Hi
If they don’t reside in your repository, then you would need to link them in your project. Dependency hell… :wink: They should really all exist in the main development project, not in some home project…