Question

I have never had a problem starting a new app, but today I got an error that said this when I tried to run rails new murphy

/usr/local/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:59:in `gem_original_require': no     such file to load -- active_support/core_ext/object/singleton_class (LoadError)
from /usr/local/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:59:in `require'
from /usr/local/lib/ruby/gems/1.8/gems/railties-3.0.0.beta2/lib/rails/generators.rb:6
from /usr/local/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:55:in `gem_original_require'
from /usr/local/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:55:in `require'
from /usr/local/lib/ruby/gems/1.8/gems/railties-3.0.0.beta2/lib/rails/commands/application.rb:10
from /usr/local/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:55:in `gem_original_require'
from /usr/local/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:55:in `require'
from /usr/local/lib/ruby/gems/1.8/gems/railties-3.0.0.beta2/bin/rails:30
from /usr/local/bin/rails:19:in `load'
from /usr/local/bin/rails:19

Answer 1

Looks like you’re using Rails 3.0 beta. Try using to Rails 3.0.9

gem install rails -v3.0.9