[Pkg-matrix-maintainers] Bug#927181: matrix-synapse: hard to troubleshoot

[sergio]

Package: matrix-synapse
Version: 0.99.2-3
Severity: normal

Dear Maintainer,

Just soon as I've enabled URL preview I was neither able to stop
matrix-synapse with /etc/init.d/matrix-synapse stop (only synctl stop
/etc/matrix-synapse/homeserver.yaml) neither start it. I got no error on
the stderr neither logfile. The only way to troubleshoot is:

# su matrix-synapse
$ python3 -m "synapse.app.homeserver" --config-path 
/etc/matrix-synapse/homeserver.yaml --config-path 
/etc/matrix-synapse/conf.d/

Missing lxml library. This is required for URL preview API.

     Install by running:
         sudo apt install python3-lxml


-- 
sergio.