Hi, Galit-
That is great news. I guess that might be a slight difference between Mint and Ubuntu installs. On my Ubuntu 14.04 desktop, I checked what xml2 packages were installed (probably all as dependencies of other installed packages), and this is what I get:
dpkg --get-selections | grep xml2
libxml2:amd64 install
libxml2-utils install
python-libxml2 install
No libxml2-dev, but still something of those. I'm not sure if the Mint installations hadn't had *any* xml2 packages installed, or just not the right library for that system.
Anyways, congrats on solving it-- and thanks for posting the solution here.
--pt