Upgraded to ruby 1.9.2 and getting Segmentation Fault errors in nokogiri

Question

I decided to upgrade to 1.9.2 ruby yesterday and also installed rvm to do it. I ran a few recent files I had working previously on 1.8.7 but anything requiring nokogiri fail

Answer 1

If you get a Segmentation fault error from nokogiri, e.g., when you open your rails console, and you are using RVM and your ruby version is 1.9.2 something (mine currently is 1.9.2p136) and you notice a reference to ruby 1.8.7 just after the nokogiri segmentation fault message, then perhaps the following may be of assistance...

ERROR

$ rails c
/Users/lex/.rvm/gems/ruby-1.9.2-p136@lmi/gems/nokogiri-1.4.4/lib/nokogiri/nokogiri.bundle: [BUG] Segmentation fault
ruby 1.8.7 (2009-06-12 patchlevel 174) [universal-darwin10.0]

Abort trap

SOLUTION

(1) make sure that ruby 1.8.7 is not a rvm ruby version: - run rvm list

if it is, then remove it: ex: rvm uninstall ree-1.8.7-2010.02

(2) uninstall nokogiri and libxml2 related dependencies:

$ gem uninstall nokogiri
$ brew uninstall libxml2

(3) install libxml2 using homebrew

$ brew install libxml2
$ brew link libxml2

(4) install libxslt from source

$ wget ftp://xmlsoft.org/libxml2/libxslt-1.1.26.tar.gz
$ tar -zxvf libxslt-1.1.26.tar.gz
$ cd libxslt-1.1.26
$ ./configure --prefix=/usr/local/Cellar/libxslt/1.1.26    --with-libxml-prefix=/usr/local/Cellar/libxml2/2.7.7
$ make
$ sudo make install

(5) install nokogiri

gem install nokogiri

Alternative (ensure your paths are correct): gem install nokogiri -- --with-xml2-include=/usr/local/Cellar/libxml2/2.7.7/include --with-xml2-lib=/usr/local/Cellar/libxml2/2.7.7/lib --with-xslt-dir=/usr/local/Cellar/libxslt/1.1.26

(6) test

$ rails c
Loading development environment (Rails 3.0.3)
>>

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