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I updated to the developer release of Lion and noticed I couldn't start rails apps anymore. Whenever I try to sudo bundle install, I get the following error:
Installing nokogiri (1.4.4) with native extensions /Library/Ruby/Site/1.8/rubygems/installer.rb:551:in `build_extensions': ERROR: Failed to build gem native extension. (Gem::Installer::ExtensionBuildError)
/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 /Users/jamielawrence/Documents/Websites/atgdb/vendor/bundle/ruby/1.8/gems/nokogiri-1.4.4 for inspection.
Results logged to /Users/jamielawrence/Documents/Websites/atgdb/vendor/bundle/ruby/1.8/gems/nokogiri-1.4.4/ext/nokogiri/gem_make.out
from /Library/Ruby/Site/1.8/rubygems/installer.rb:504:in `each'
from /Library/Ruby/Site/1.8/rubygems/installer.rb:504:in `build_extensions'
from /Library/Ruby/Site/1.8/rubygems/installer.rb:180:in `install'
from /Library/Ruby/Gems/1.8/gems/bundler-1.0.15/lib/bundler/source.rb:101:in `install'
from /Library/Ruby/Gems/1.8/gems/bundler-1.0.15/lib/bundler/rubygems_integration.rb:78:in `preserve_paths'
from /Library/Ruby/Gems/1.8/gems/bundler-1.0.15/lib/bundler/source.rb:91:in `install'
from /Library/Ruby/Gems/1.8/gems/bundler-1.0.15/lib/bundler/installer.rb:58:in `run'
from /Library/Ruby/Gems/1.8/gems/bundler-1.0.15/lib/bundler/rubygems_integration.rb:93:in `with_build_args'
from /Library/Ruby/Gems/1.8/gems/bundler-1.0.15/lib/bundler/installer.rb:57:in `run'
from /Library/Ruby/Gems/1.8/gems/bundler-1.0.15/lib/bundler/spec_set.rb:12:in `each'
from /Library/Ruby/Gems/1.8/gems/bundler-1.0.15/lib/bundler/spec_set.rb:12:in `each'
from /Library/Ruby/Gems/1.8/gems/bundler-1.0.15/lib/bundler/installer.rb:49:in `run'
from /Libr