to use XML::LibXML To make it it required libxml2, I installed it but XML-LIBXML could not still recognize it. it was in /usr/lib but not in /usr/include therefore, I did sudo apt-get install lib-xml2-dev, XML-LIBXML could recognize it. Then XML::NamespaceSupport $ perl Makefile.pl Then XML::SAX$ make $ make test $ sudo make install Finally XML::LibXML will install |