{"id":3627,"date":"2008-05-17T09:03:57","date_gmt":"2008-05-17T13:03:57","guid":{"rendered":"http:\/\/scruss.com\/blog\/2008\/05\/17\/how-to-fix-the-annoying-ubuntudebian-xmlsax-install-problems\/"},"modified":"2008-05-17T09:03:57","modified_gmt":"2008-05-17T13:03:57","slug":"how-to-fix-the-annoying-ubuntudebian-xmlsax-install-problems","status":"publish","type":"post","link":"https:\/\/scruss.com\/blog\/2008\/05\/17\/how-to-fix-the-annoying-ubuntudebian-xmlsax-install-problems\/","title":{"rendered":"how to fix the annoying Ubuntu\/Debian XML::SAX install problems"},"content":{"rendered":"

Debian and its derived distributions have a policy about packages not being able to modify the configuration of other packages. While this might generally seem like a good idea, for the TIMTOWTDI<\/abbr> world of Perl<\/a>, this causes problems.<\/p>\n

The problem arises if you have installed Perl XML modules from both CPAN<\/a> and the Debian (or Ubuntu<\/a>, or whatever) repositories. Debian’s modifications subtly break the XML::SAX module, on which most Perl XML modules (including the brilliant XML::Simple<\/a>) depend. If you’ve been naughty and used a module from CPAN, Debian gets its knickers in a knot, and won’t configure or run anything remotely related to libxml-sax-perl.<\/p>\n

If you get the error Can’t locate object method “save_parsers_debian” via package “XML::SAX” at \/usr\/bin\/update-perl-sax-parsers line 90<\/strong>, your system is affected. You might get the clue that any of your Perl XML handlers freak out and fail in weird ways.<\/p>\n

Here’s a<\/em> method (there’s always more than one, of course)\u00c2\u00a0 to fix it. This was combined from a couple<\/a> of sources<\/a>, each of which was on the right track but didn’t entirely work. Actually, the first might’ve been right on the money<\/a>, but my hiragana’s a bit ropey …<\/p>\n

    \n
  1. make sure you’ve got your system up to date with apt-get<\/code> or aptitude<\/code>.<\/li>\n
  2. sudo cpan CPANPLUS<\/code> (this will ask you lots of questions, to which you should almost always answer with the default<\/em>)<\/li>\n
  3. sudo cpanp -u XML::SAX<\/code> (this takes quite a while, and produces no output for most of it<\/em>)<\/li>\n
  4. LC_ALL=C sudo apt-get install --reinstall libxml-sax-perl<\/code> (the <\/em>LC_ALL=C<\/code> might not be strictly necessary, but it worked for me<\/em>)<\/li>\n<\/ol>\n

    You must remember never to pretend to be smarter than the Debian maintainers, and suitably chastened, may now return to your normal OpenSSH patching<\/a> activities …<\/p>\n","protected":false},"excerpt":{"rendered":"

    Debian and its derived distributions have a policy about packages not being able to modify the configuration of other packages. While this might generally seem like a good idea, for the TIMTOWTDI world of Perl, this causes problems. The problem arises if you have installed Perl XML modules from both CPAN and the Debian (or […]<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":false,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2}},"categories":[7],"tags":[176,1286,1289,187,1288,194,305,1287],"class_list":["post-3627","post","type-post","status-publish","format-standard","hentry","category-computers-suck","tag-bug","tag-debian","tag-libxml","tag-perl","tag-sax","tag-snark","tag-ubuntu","tag-xml"],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"","jetpack_shortlink":"https:\/\/wp.me\/pQNZZ-Wv","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/scruss.com\/blog\/wp-json\/wp\/v2\/posts\/3627","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/scruss.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/scruss.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/scruss.com\/blog\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/scruss.com\/blog\/wp-json\/wp\/v2\/comments?post=3627"}],"version-history":[{"count":0,"href":"https:\/\/scruss.com\/blog\/wp-json\/wp\/v2\/posts\/3627\/revisions"}],"wp:attachment":[{"href":"https:\/\/scruss.com\/blog\/wp-json\/wp\/v2\/media?parent=3627"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/scruss.com\/blog\/wp-json\/wp\/v2\/categories?post=3627"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/scruss.com\/blog\/wp-json\/wp\/v2\/tags?post=3627"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}