Package: apt-show-versions Version: 0.22.7 Severity: minor /etc/apt/apt.conf.d/20apt-show-versions contains:
// When Apt's cache is updated (i.e. apt-cache update) APT::Update::Post-Invoke-Success { "test -x /usr/bin/apt-show-versions || exit 0 ; apt-show-versions -i"; }; "apt-cache update" does not exist: $ apt-cache update E: Invalid operation update I suppose that you meant "apt-get update". -- System Information: Debian Release: stretch/sid APT prefers stable-updates APT policy: (500, 'stable-updates'), (500, 'unstable'), (500, 'testing'), (500, 'stable'), (1, 'experimental') Architecture: amd64 (x86_64) Kernel: Linux 4.3.0-1-amd64 (SMP w/8 CPU cores) Locale: LANG=POSIX, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8) Shell: /bin/sh linked to /bin/dash Init: systemd (via /run/systemd/system) Versions of packages apt-show-versions depends on: ii apt 1.1.5 ii libapt-pkg-perl 0.1.29+b5 ii libperl5.22 [libstorable-perl] 5.22.1-2 ii perl 5.22.1-2 apt-show-versions recommends no packages. apt-show-versions suggests no packages. -- no debconf information