colo:~# apt-get install libxml-sax-perl
Reading Package Lists... Done
Building Dependency Tree... Done
The following NEW packages will be installed:
  libxml-sax-perl
0 upgraded, 1 newly installed, 0 to remove and 6 not upgraded.
Need to get 0B/79.5kB of archives.
After unpacking 446kB of additional disk space will be used.
Selecting previously deselected package libxml-sax-perl.
(Reading database ... 77850 files and directories currently installed.)
Unpacking libxml-sax-perl (from .../libxml-sax-perl_0.12-5_all.deb) ...
Setting up libxml-sax-perl (0.12-5) ...
Can't locate object method "save_parsers_debian" via package "XML::SAX" at /usr/bin/update-perl-sax-parsers line 90.
dpkg: error processing libxml-sax-perl (--configure):
 subprocess post-installation script returned error exit status 255
Errors were encountered while processing:
 libxml-sax-perl
E: Sub-process /usr/bin/dpkg returned an error code (1)
colo:~#