package cipux-cat-web isn't removable because of failing find command in post-removal script

[Karl-Philipp Richter]

The output of `sudo LANG=C apt-get remove cipux-cat-web`is

    Reading package lists... Done
    Building dependency tree
    Reading state information... Done
    The following packages will be REMOVED:
      cipux-cat-web
    0 upgraded, 0 newly installed, 1 to remove and 0 not upgraded.
    1 not fully installed or removed.
    After this operation, 734 kB disk space will be freed.
    Do you want to continue? [Y/n] y
    bzr: warning: ?berspringe /etc/X11/core (Gr??er als add.maximum_file_size von 20000000 Bytes)
    /bin/sh: 1: /usr/bin/apt-listdifferences: not found
    (Reading database ... 1153294 files and directories currently installed.)
    Removing cipux-cat-web (3.4.0.3-4.1) ...
    find: `/var/lib/cipux-cat-web/dpkg': No such file or directory
    dpkg: error processing package cipux-cat-web (--remove):
     subprocess installed post-removal script returned error exit status 1
    Errors were encountered while processing:
     cipux-cat-web
    bzr: warning: ?berspringe /etc/X11/core (Gr??er als add.maximum_file_size von 20000000 Bytes)
    E: Sub-process /usr/bin/dpkg returned an error code (1)

It's possible to work around this issue by executing `sudo mkdir -p /var/lib/cipux-cat-web/ && sudo touch /var/lib/cipux-cat-web/dpkg && sudo apt-get remove cipux-cat-web`, so it's very certain just a bad test in the post-removal script.

ProblemType: Bug
DistroRelease: Ubuntu 14.10
Package: cipux-cat-web 3.4.0.3-4.1
Uname: Linux 3.17.7-031707-generic x86_64
ApportVersion: 2.14.7-0ubuntu8
Architecture: amd64
CurrentDesktop: Unity
Date: Fri Dec 19 14:02:47 2014
PackageArchitecture: all
SourcePackage: cipux-cat-web
UpgradeStatus: No upgrade log present (probably fresh install)
modified.conffile..etc.cipux.cat.web.apache.conf: [deleted]
modified.conffile..etc.cipux.cat.web.lighttpd.conf: [deleted]

[Launchpad Janitor (janitor)]

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

[Hans Joachim Desserud (hjd)]

Thanks for reporting this issue (and the workaround).

I can confirm this issue is still present in Ubuntu Wily (well, it's still cipux-cat-web 3.4.0.3-4.1). Also, I found a bug report for the same issue in Debian so I have attached a bug watch.