Bug#840068: gnome-session-flashback: installation fails

[Ara Keary]

Package: gnome-session-flashback
Version: 3.22.0-1
Severity: grave
Justification: renders package unusable

Dear maintainer,

update to 3.22.0-1 fails to install: apt-get fails with

Setting up gnome-session-flashback (3.22.0-1) ...
update-alternatives: error: alternative path /usr/lib/gnome-flashback/gnome-
flashback-metacity doesn't exist
dpkg: error processing package gnome-session-flashback (--configure):
 subprocess installed post-installation script returned error exit status 2
Errors were encountered while processing:
 gnome-session-flashback
E: Sub-process /usr/bin/dpkg returned an error code (1)
Setting up gnome-session-flashback (3.22.0-1) ...
update-alternatives: error: alternative path /usr/lib/gnome-flashback/gnome-
flashback-metacity doesn't exist
dpkg: error processing package gnome-session-flashback (--configure):
 subprocess installed post-installation script returned error exit status 2
Errors were encountered while processing:
 gnome-session-flashback


Best,

Ara



-- System Information:
Debian Release: stretch/sid
  APT prefers unstable
  APT policy: (500, 'unstable'), (500, 'testing'), (500, 'stable'), (1, 'experimental')
Architecture: amd64 (x86_64)
Foreign Architectures: i386

Kernel: Linux 4.7.0-1-amd64 (SMP w/8 CPU cores)
Locale: LANG=en_US.UTF-8, 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 gnome-session-flashback depends on:
ii  gnome-flashback        3.22.0-1
ii  gnome-panel            3.20.1-1+b1
ii  gnome-session-bin      3.22.0-1
ii  gnome-session-common   3.22.0-1
ii  gnome-settings-daemon  3.22.0-1
ii  metacity               1:3.22.0-1
ii  nautilus               3.22.0-1

Versions of packages gnome-session-flashback recommends:
ii  gnome-power-manager  3.22.0-1
ii  gnome-screensaver    3.6.1-7+b1

Versions of packages gnome-session-flashback suggests:
ii  desktop-base      8.0.2
ii  gnome-keyring     3.20.0-3
ii  gnome-user-guide  3.22.0-1

-- no debconf information