Package: matrix-synapse Version: 0.99.0-1~bpo9+2 Severity: important Dear Maintainer,
# apt -t stretch-backports install matrix-synapse Reading package lists... Done Building dependency tree Reading state information... Done Some packages could not be installed. This may mean that you have requested an impossible situation or if you are using the unstable distribution that some required packages have not yet been created or been moved out of Incoming. The following information may help to resolve the situation: The following packages have unmet dependencies: matrix-synapse : Depends: python3-distutils but it is not installable E: Unable to correct problems, you have held broken packages. $ apt policy matrix-synapse python3-distutils matrix-synapse: Installed: 0.34.1.1-3~bpo9+1 Candidate: 0.99.0-1~bpo9+2 Version table: 0.99.0-1~bpo9+2 100 100 https://deb.debian.org/debian stretch-backports/main amd64 Packages *** 0.34.1.1-3~bpo9+1 100 100 /var/lib/dpkg/status python3-distutils: Installed: (none) Candidate: (none) Version table: