问题
I install plugin open_id_authentication and have this error:
/usr/lib/ruby/gems/1.9.1/gems/activesupport-3.0.0.beta/lib/active_support/dependencies.rb:167:in `require': no such file to load -- rack/openid (LoadError)
when I try to start rails server
Actually, rack-openid installed in my system and i can load it from irb:
irb(main):001:0> require 'rack/openid'
=> true
I tried to add hack to Gemfile as I did with ruby-openid, but it did't help:
gem "ruby-openid", :require => "openid"
gem "rack-openid", :require => "rack/openid"
I also have tried
gem "ruby-openid", :require => "rack/openid"
but:
/usr/lib/ruby/gems/1.9.1/gems/bundler-0.9.7/lib/bundler/runtime.rb:38:in `require': no such file to load -- rack/openid (LoadError)
In rails 2.3.5 app there isn't this problem and I can't understand why it happens in Rails 3.
回答1:
The problem is this code at the top of the plugin's init.rb
if Rails.version < '3'
config.gem 'rack-openid', :lib => 'rack/openid', :version => '>=0.2.1'
end
Bundler doesn't seem to pick up on the gem requirement so you are missing the rack-openid gem.
The solution is to add the following to your Gemfile in place of ruby-openid. (rack-openid depends on ruby-openid but gems is aware of this and will install it as needed)
gem 'rack-openid', '>=0.2.1', :require => 'rack/openid'
Don't forget to run bundle install after updating your Gemfile.
回答2:
I understand your problem since ruby openID can be very erratic, for small reasons.. I have it installed at work, but can't get it right at home! I will give my working recipe:
I have the Plugins (ONLY)
authlogic_openid from: http://github.com/binarylogic/authlogic_openid
open-id from: http://github.com/senthilnambi/open-id
The Gems:
authlogic (2.1.3)
authlogic-oid (1.0.4)
openid (0.0.1)
rack (1.0.1)
rack-openid (1.0.1)
ruby-openid (2.1.7)
At environment (ONLY):
config.gem "authlogic"
GL!
回答3:
gem "rack-openid", :require => "rack/openid"
来源：https://stackoverflow.com/questions/2316729/problem-with-require-rack-openid-in-rails-3-native-require-work-properly