Nokogiri and libxml not playing with Rails on Mountain Lion? #742
Comments
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+1. Same problem here. Ruby 1.9.3-p194, Rails 3.2.7, Nokogiri 1.5.5. |
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It sounds like something is loading libxml2 before nokogiri is being loaded. Can you try running your rails commands like this: And paste the output? It should be a fairly long list of dyld libraries. We need to figure out how libxml2 is being loaded. Thanks! |
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Hey Aaron, thanks for the reply :) Here's the output as requested: Just a quick note to say I've been uninstalling/installing many times since I first posted the issue, and I think the latest try (in relation to the DYLD output above) I had installed it this way: Just let me know how/if you need me to reinstall and/or repeat the DYLD command if need be :) |
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OK. So the interesting lines are these: It looks like the postgresql gem somehow depends on libxml2. When the pg extension gets loaded, something causes libxml2 to be loaded. I'm betting that if you do For fun, I used the ###
# $ ruby test.rb $(gem which pg_ext.bundle)
require 'graph'
SEEN = {}
def rawr_graph lib, grapher
return if SEEN[lib]
SEEN[lib] = true
libs = `otool -L #{lib}`.split($/).map(&:strip).drop_while { |l|
l.start_with? lib
}.map { |string| string[/[^(]*/].strip }
libs.each do |l|
grapher.edge File.basename(lib), File.basename(l)
rawr_graph l, grapher
end
end
digraph do
rotate
boxes
rawr_graph ARGV[0], self
save 'omg'
endIf you run that program (like this pg -> Kerberos -> Security -> libxar -> libxml2 AFAIK, the only way to get around this issue is to ether: have nokogiri link against the system libxml2 (brew uninstall libxml2, reinstall nokogiri) or to make sure nokogiri gets required before pg. I suspect you have nokogiri listed after pg in your Gemfile. I think if you move nokogiri above pg in your gemfile, this should go away. Here is the graph on my system: |
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Hi Aaron - thanks for the in-depth response :) Unfortunately it doesn't work :( So I uninstalled libxml2 then uninstalled nokogiri, then reinstalled (Nokogiri) - but now I get: Then I uninstalled and reinstalled with: But it still gives me (what looks like the same) error - referring to 2.8.0 (weird!) (I also made sure Nokogiri is called before the pg gem in the Gemfile): I also installed graph, and tried to run your script but I get: Does any of that give you any further clues? Sorry to be a pain. |
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Can you post your Gemfile? |
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Here ya go Aaron: |
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Hi Aaron, not sure if it's any help, but I created a new test app, and only added Nokogiri to the gem file (and also did sudo uninstall pg) but I still can't require nokogiri in Rails console: |
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You're successfully requiring nokogiri. |
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Sorry Aaron, I feel so stupid now! Apologies for wasting your time - you are such a star for being so nice about it :-) |
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@AstonJ don't worry about it! Are you still getting the warning? |
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Nah, I think they actually stopped when I reinstalled it one of the other ways - but as I kept getting false on require I assumed it was still broke blush. Or it could be your suggestion of moving it up the Gemfile that fixed it - sorry I can't give you a definite answer. Also, after all that, I ended up going back to Lion tonight - Mountain Lion is just so horribly buggy. Thanks again for your help - you're a real gem :) |
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No problem, glad to help out. I'll close this, and if anyone else gets warnings, they can comment and I'll reopen. :) |
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Hi there - but still no dice. Any thoughts? |
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From memory I think I did something like.. Moved gem 'nokogiri' in the Gemfile to the top (just below gem 'rails') then: If that doesn't work you could try: |
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Heyo - that did it. Makes sense regarding the above mentioned comment about pg requiring nokogiri and using other extensions. Thanks!! |
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You're welcome - glad you got it sorted :) |
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i just installed Mavericks and was having the same issue. From @tenderlove comments above i realized that Postgres was loading libxml before Nokogiri, however moving the Nokogiri gem declaration to the top of the Gemfile (as others suggested) did not work for me. Instead, I used the libxml that ships with Postgres.app to build Nokogiri and was good to go: bundle config build.pg --with-pg-config=/Applications/Postgres93.app/Contents/MacOS/bin/pg_config
# use Postgres.app libxml2 to compile Nokogiri
bundle config build.nokogiri --with-xml2-lib=/Applications/Postgres93.app/Contents/MacOS/lib --with-xml2-include=/Applications/Postgres93.app/Contents/MacOS/include/libxml2
bundle installnote: i have these gems installed locally in |
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Thanks Firien for your comment. I have been dealing with this issue and following the previous comments and yours was really helpful to fix mine. |
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Same here; kudos for Firien; I was able to load nokogiri 1.4.7 w/ Mavericks using this command: |
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I've installed Nokogiri, and everything works fine in irb, however, in the Rails console (or when running any Rails command) I get:
nokogiri -v shows:
I installed Nokogiri with:
As libxml2 with brew now installs 2.8.0 (still showing 2.7.8 in the instructions on the Nokogiri site - which is what I followed first).
Is this is a bug? Or have I messed up the install somehow? (Thanks in advance for any help.)
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