apt-get error caused by Tex Live 2012

I am running TeX Live 2012 on Ubuntu Precise. For the installation I followed this tutorial (http://weblog.avp-ptr.de/20120710/how-to-manually-install-tex-live-2012/). Yesterday, I updated the packages (about 40 items) for Tex Live 2012 using the following tool.

$ sudo tlmgr --gui

The updates have been installed successfully and everything still worked.

Today, I noticed that apt-get outputs errors when I run sudo apt-get install something or sudo apt-get autoremove. Here is the console output of the latter command.

$ sudo apt-get autoremove
Reading package lists... Done
Building dependency tree
Reading state information... Done
0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.
3 not fully installed or removed.

After this operation, 0 B of additional disk space will be used.
Setting up texlive-base (2009-15) ...
mktexlsr: Updating /var/lib/texmf/ls-R-TEXMFMAIN...
mktexlsr: Updating /var/lib/texmf/ls-R-TEXLIVE...
mktexlsr: Updating /var/lib/texmf/ls-R...
mktexlsr: Done.

texconfig: unknown option `paperconf' given as argument for `texconfig dvips'
texconfig: try `texconfig dvips' for help
texconfig: unknown option `paperconf' given as argument for `texconfig dvipdfmx'
texconfig: try `texconfig dvipdfmx' for help
texconfig: unknown option `paperconf' given as argument for `texconfig xdvi'
texconfig: try `texconfig xdvi' for help
texconfig: unknown option `paperconf' given as argument for `texconfig pdftex'
texconfig: try `texconfig pdftex' for help
texconfig: unknown option `paperconf' given as argument for `texconfig dvips'
texconfig: try `texconfig dvips' for help

dpkg: error processing texlive-base (--configure):
 subprocess installed post-installation script returned error exit status 1
dpkg: dependency problems prevent configuration of texlive-latex-base:
 texlive-latex-base depends on texlive-base (>= 2009-1); however:
  Package texlive-base is not configured yet.
dpkg: error processing texlive-latex-base (--configure):
 dependency problems - leaving unconfigured
dpkg: dependency problems prevent configuration of texlive-bibtex-extra:
 texlive-bibtex-extra depends on texlive-latex-base (>= 2009-1); however:
  Package texlive-latex-base is not configured yet.
dpkg: error processing texlive-bibtex-extra (--configure):
 dependency problems - leaving unconfigured

No apport report written because the error message indicates its a followup
error from a previous failure.
No apport report written because the error message indicates its a followup
error from a previous failure.

Errors were encountered while processing:
 texlive-base
 texlive-latex-base
 texlive-bibtex-extra

LaTeX itself still works fine as far as I can see.

Note: Just in case the following has something to do with the main problem. I also noticed a while ago that the man path does no longer point to the usual folders. The MANPATH problem (http://askubuntu.com/questions/60765/how-do-i-add-a-directory-to-manpath-or-infopath) has been described before. However, I could not solve it on my machine.

$ echo $MANPATH
/usr/local/texlive/2012/texmf/doc/man

ProblemType: Package
DistroRelease: Ubuntu 12.04
Package: texlive-base 2009-15
ProcVersionSignature: Ubuntu 3.2.0-30.48-generic 3.2.27
Uname: Linux 3.2.0-30-generic x86_64
ApportVersion: 2.0.1-0ubuntu13
Architecture: amd64
Date: Tue Sep 11 10:29:27 2012
ErrorMessage: subprocess installed post-installation script returned error exit status 1
InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Release amd64 (20120425)
PackageArchitecture: all
SourcePackage: texlive-base
Title: package texlive-base 2009-15 failed to install/upgrade: subprocess installed post-installation script returned error exit status 1
UpgradeStatus: No upgrade log present (probably fresh install)