ToDo: merge with Packaging:Common-Erros-And-Fixes ToDo: rename page to ?Packaging/CommonErrors
pkg: unrecoverable fatal error, aborting: unknown system group 'apt-cacher-ng' in statoverride file
Open /var/lib/dpkg/statoverride and remove this line: root apt-cacher-ng 640 /etc/apt-cacher-ng/security.conf