package matrix-synapse 0.19.2+dfsg-6 failed to install/upgrade: subprocess installed post-installation script returned error exit status 1

[Robert Dinse]

Setting up matrix-synapse (0.19.2+dfsg-6) ...
Job for matrix-synapse.service failed because the control process exited with error code.
See "systemctl status matrix-synapse.service" and "journalctl -xe" for details.
invoke-rc.d: initscript matrix-synapse, action "start" failed.
● matrix-synapse.service - Synapse Matrix homeserver
   Loaded: loaded (/lib/systemd/system/matrix-synapse.service; enabled; vendor preset: enabled)
   Active: activating (auto-restart) (Result: exit-code) since Mon 2017-11-06 18:51:59 PST; 9ms ago
  Process: 12068 ExecStartPre=/usr/bin/python -m synapse.app.homeserver --config-path=/etc/matrix-synapse/homeserver.yaml --config-path=/etc/matrix-synapse/conf.d/ --generate-keys (code=exited, status=1/FAILURE)

Nov 06 18:51:59 nanook systemd[1]: Failed to start Synapse Matrix homeserver.
Nov 06 18:51:59 nanook systemd[1]: matrix-synapse.service: Unit entered failed state.
Nov 06 18:51:59 nanook systemd[1]: matrix-synapse.service: Failed with result 'exit-code'.
dpkg: error processing package matrix-synapse (--configure):
 subprocess installed post-installation script returned error exit status 1
Errors were encountered while processing:
 matrix-synapse

ProblemType: Package
DistroRelease: Ubuntu 17.10
Package: matrix-synapse 0.19.2+dfsg-6
ProcVersionSignature: Ubuntu 4.13.0-16.19-lowlatency 4.13.4
Uname: Linux 4.13.0-16-lowlatency x86_64
NonfreeKernelModules: nvidia
ApportVersion: 2.20.7-0ubuntu3.1
Architecture: amd64
Date: Mon Nov 6 18:32:32 2017
ErrorMessage: subprocess installed post-installation script returned error exit status 1
PackageArchitecture: all
Python3Details: /usr/bin/python3.6, Python 3.6.3, python3-minimal, 3.6.3-0ubuntu2
PythonDetails: /usr/bin/python2.7, Python 2.7.14, python-minimal, 2.7.14-2ubuntu1
RelatedPackageVersions:
 dpkg 1.18.24ubuntu1
 apt 1.5.1
SourcePackage: matrix-synapse
Title: package matrix-synapse 0.19.2+dfsg-6 failed to install/upgrade: subprocess installed post-installation script returned error exit status 1
UpgradeStatus: Upgraded to artful on 2017-10-19 (18 days ago)

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[Andrej Shadura (andrew.sh)]

Any more details maybe?

[Launchpad Janitor (janitor)]

[Expired for matrix-synapse (Ubuntu) because there has been no activity for 60 days.]