Error installing pg gem on osx

Question

I am on osx 10.6.7 trying to run bundle install on a new rails 3.0.7 app and it keeps failing when trying to build the pg gem. It keeps telling me that I have need the devel

Answer 1

I'm on the same OSX and XCode version as you are: bundle install with pg 0.11.0 works fine to me. However, I found this article that might be able to help you fixing-the-you-have-to-install-development-tools-first-error-with-nokogiri

If you're using rvm, you can try:

rvm update head  
rvm --force install
1.9.2 gem install bundle

Here my stack:

[ 08:36:26 ] > bundle install
Fetching source index for http://rubygems.org/
Enter your password to install the bundled RubyGems to your system: 
Using rake (0.8.7) 
Using abstract (1.0.0) 
Installing activesupport (3.0.7) 
Installing builder (2.1.2) 
Installing i18n (0.5.0) 
Installing activemodel (3.0.7) 
Using erubis (2.6.6) 
Using rack (1.2.2) 
Installing rack-mount (0.6.14) 
Installing rack-test (0.5.7) 
Installing tzinfo (0.3.27) 
Installing actionpack (3.0.7) 
Using mime-types (1.16) 
Installing polyglot (0.3.1) 
Installing treetop (1.4.9) 
Installing mail (2.2.19) 
Installing actionmailer (3.0.7) 
Installing arel (2.0.9) 
Installing activerecord (3.0.7) 
Installing activeresource (3.0.7) 
Using bundler (1.0.10) 
Installing pg (0.11.0) with native extensions 
Using thor (0.14.6) 
Installing railties (3.0.7) 
Installing rails (3.0.7) 
Your bundle is complete! Use `bundle show [gemname]` to see where a bundled gem is installed.
[ ronda@MacBook ~/Projects/rails_projects/first_app ]
[ 08:42:57 ] > rails server
=> Booting WEBrick
=> Rails 3.0.7 application starting in development on http://0.0.0.0:3000
=> Call with -d to detach
=> Ctrl-C to shutdown server
[2011-04-27 20:45:27] INFO  WEBrick 1.3.1
[2011-04-27 20:45:27] INFO  ruby 1.9.2 (2011-02-18) [x86_64-darwin10]
[2011-04-27 20:45:27] INFO  WEBrick::HTTPServer#start: pid=4757 port=3000