Ruby sqlite3和x2B的问题；OS X Mountain Lion上的Rails问题

如何修复此问题？

我会确保您安装了OSX开发工具（带有gcc的XCode等）。如果您确信自己拥有这些工具，那么下一步将是遵循前面链接的问题（安装ruby-devel和sqlite3-devel）。

看起来与

Master:demo shaunstanislaus$ rails server Could not find gem 'sqlite3
(>= 0) ruby' in the gems available on this machine. Run `bundle
install` to install missing gems. Master:demo shaunstanislaus$ sudo
bundle install Password: Fetching gem metadata from
https://rubygems.org/......... Using rake (0.9.2.2)  Using i18n
(0.6.0)  Using multi_json (1.3.6)  Using activesupport (3.2.6)  Using
builder (3.0.0)  Using activemodel (3.2.6)  Using erubis (2.7.0) 
Using journey (1.0.4)  Using rack (1.4.1)  Using rack-cache (1.2) 
Using rack-test (0.6.1)  Using hike (1.2.1)  Using tilt (1.3.3)  Using
sprockets (2.1.3)  Using actionpack (3.2.6)  Using mime-types (1.19) 
Using polyglot (0.3.3)  Using treetop (1.4.10)  Using mail (2.4.4) 
Using actionmailer (3.2.6)  Using arel (3.0.2)  Using tzinfo (0.3.33) 
Using activerecord (3.2.6)  Using activeresource (3.2.6)  Using
bundler (1.1.5)  Using coffee-script-source (1.3.3)  Using execjs
(1.4.0)  Using coffee-script (2.2.0)  Using rack-ssl (1.3.2)  Using
json (1.7.4)  Using rdoc (3.12)  Using thor (0.15.4)  Using railties
(3.2.6)  Using coffee-rails (3.2.2)  Using jquery-rails (2.0.2)  Using
rails (3.2.6)  Using sass (3.1.20)  Using sass-rails (3.2.5) 
Installing sqlite3 (1.3.6) with native extensions 
Gem::Installer::ExtensionBuildError: ERROR: Failed to build gem native
extension.

/System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/bin/ruby
extconf.rb  mkmf.rb can't find header files for ruby at
/System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/ruby/ruby.h


Gem files will remain installed in
/Library/Ruby/Gems/1.8/gems/sqlite3-1.3.6 for inspection. Results
logged to
/Library/Ruby/Gems/1.8/gems/sqlite3-1.3.6/ext/sqlite3/gem_make.out An
error occured while installing sqlite3 (1.3.6), and Bundler cannot
continue. Make sure that `gem install sqlite3 -v '1.3.6'` succeeds
before bundling. Master:demo shaunstanislaus$