Another post about an issue I was having, this time while trying to get the W3C validator installed locally. It seems there was a failure installing one of the needed perl packages so I had to to it manually. After doing so, the following error was returned: Fatal: cannot call XML::SAX->save_parsers_debian().
After doing a quick bit of Googling, the second result actually returned some useful information. The poster to the forum, fine102, lead me to the local installation of XML::SAX and even gave quick instructions to move the directory and properly install libxml.
Here is the useful information:
mv SAX* dnu/
apt-get install libxml-libxml-perl