我看过 railscast http://railscasts.com/episodes/236-omniauth-part-2
并尝试实现代码，一切在开发环境中运行良好。当我使用 rails s -e production 执行时，出现以下错误
omniauth_callbacks_controller.rb:1: 未初始化的常量 Devise::OmniauthCallbacksController (NameError)
导致错误的代码片段在这里
类用户::OmniauthCallbacksController < 设计::OmniauthCallbacksController
我的宝石文件
gem 'aws-s3'
gem 'paperclip'
gem 'rails', '3.0.0'
gem 'pg'
gem 'gravatar_image_tag', '0.1.0'
gem 'will_paginate', '3.0.pre2'
gem 'devise'
gem 'omniauth'
gem 'nifty-generators'
我的 Gemfile.lock 文件（只是相关的）
devise (1.1.5)
bcrypt-ruby (~> 2.1.2)
warden (~> 1.0.2)
nokogiri (1.4.4)
oa-basic (0.1.6)
multi_json (~> 0.0.2)
nokogiri (~> 1.4.2)
oa-core (= 0.1.6)
rest-client (~> 1.6.0)
oa-core (0.1.6)
rack (~> 1.1)
oa-enterprise (0.1.6)
net-ldap (~> 0.1.1)
nokogiri (~> 1.4.2)
oa-core (= 0.1.6)
pyu-ruby-sasl (~> 0.0.3.1)
rubyntlm (~> 0.1.1)
oa-oauth (0.1.6)
multi_json (~> 0.0.2)
nokogiri (~> 1.4.2)
oa-core (= 0.1.6)
oauth (~> 0.4.0)
oauth2 (~> 0.1.0)
oa-openid (0.1.6)
oa-core (= 0.1.6)
rack-openid (~> 1.2.0)
ruby-openid-apps-discovery
oauth (0.4.4)
oauth2 (0.1.0)
faraday (~> 0.5.0)
multi_json (~> 0.0.4)
omniauth (0.1.6)
oa-basic (= 0.1.6)
oa-core (= 0.1.6)
oa-enterprise (= 0.1.6)
oa-oauth (= 0.1.6)
oa-openid (= 0.1.6)
我的 development.rb 文件
SampleApp::Application.configure do
config.cache_classes = false
config.whiny_nils = true
config.consider_all_requests_local = true
config.action_view.debug_rjs = true
config.action_controller.perform_caching = false
config.action_mailer.raise_delivery_errors = false
config.active_support.deprecation = :log
config.action_dispatch.best_standards_support = :builtin
config.action_mailer.default_url_options = { :host => 'localhost:3000' }
end
我的 production.rb 文件
SampleApp::Application.configure do
config.cache_classes = true
config.consider_all_requests_local = false
config.action_controller.perform_caching = true
config.action_dispatch.x_sendfile_header = "X-Sendfile"
config.serve_static_assets = false
config.i18n.fallbacks = true
config.active_support.deprecation = :notify
end
任何人都可以帮忙吗？