Error with compiling Nokogiri to install Rails

Question

I've been trying to install Rails on my computer today but I can't seem to figure it out. After using

gem install rails

I get a lot of errors I can't seem to decipher. They seem to be related to Nokogiri, but after 3-4 hours of seemingly random installations and "fixes" I am nowhere.

I tried using

gem install nokogiri -v 1.6.5 -- --use-system-libraries

and got

ERROR:  Error installing nokogiri:
ERROR: Failed to build gem native extension.

/Users/xlforloser/.rvm/rubies/ruby-2.1.5/bin/ruby -r ./siteconf20150103-18446-1ac5ew1.rb extconf.rb --use-system-libraries
checking if the C compiler accepts ... yes
checking if the C compiler accepts -Wno-error=unused-command-line-argument-hard-error-in-      future... no
Building nokogiri using system libraries.
libxml2 version 2.6.21 or later is required!

If I only run gem install rails, I got

ERROR:  Error installing rails:
ERROR: Failed to build gem native extension.

Running 'compile' for libxml2 2.9.2... ERROR, review '/Users/xlforloser/.rvm/rubies/ruby-2.1.5/lib/ruby/gems/2.1.0/gems/nokogiri-1.6.5/ext/nokogiri/tmp/x86_64-apple-darwin14.0.0/ports/libxml2/2.9.2/compile.log' to see what happened.

Please help!

it's says to check your `compile.log` for more details. I wish you could do that and post that here. — emi, Jan 04 '15 at 05:10
Add the output of `gem env` to your question, and format it for readability. — the Tin Man, Jan 04 '15 at 05:24

score 1 · Answer 1 · answered Jan 04 '15 at 05:23

You have two hints about the problem:

libxml2 version 2.6.21 or later is required!
...review '/Users/xlforloser/.rvm/rubies/ruby-2.1.5/lib/ruby/gems/2.1.0/gems/nokogiri-1.6.5/ext/nokogiri/tmp/x86_64-apple-darwin14.0.0/ports/libxml2/2.9.2/compile.log' to see what happened.

To fix these:

Read what is in compile.log and search for information about what it says.
Read through the "Related" answers on the right-side of this page. Read them ALL before doing something. Too many times people try one thing, then another, then another, and end up making the problem worse because not everyone's situation applies to them.
You can use Homebrew to install a current version of libxml2.

Error with compiling Nokogiri to install Rails

1 Answers1