如果我运行“Rails s”或“rails generate active_admin：install”或其他所有内容，我也会收到此错误......这是什么意思？
我已经运行“捆绑安装”或“捆绑更新”。 （RAILS 3.1.3）
/Library/Ruby/Gems/1.8/gems/actionpack-3.1.3/lib/action_dispatch/routing/route_set.rb:198:in `to_proc': undefined method `to_sym' for #<Hash:0x1038c0498> (NoMethodError)
from /Library/Ruby/Gems/1.8/gems/devise-1.5.2/lib/devise/rails/routes.rb:190:in `map!'
from /Library/Ruby/Gems/1.8/gems/devise-1.5.2/lib/devise/rails/routes.rb:190:in `devise_for'
from /Users/leonardopellicciotta/dev/webtelevideo/config/routes.rb:7
from /Library/Ruby/Gems/1.8/gems/actionpack-3.1.3/lib/action_dispatch/routing/route_set.rb:258:in `instance_exec'
from /Library/Ruby/Gems/1.8/gems/actionpack-3.1.3/lib/action_dispatch/routing/route_set.rb:258:in `eval_block'
from /Library/Ruby/Gems/1.8/gems/actionpack-3.1.3/lib/action_dispatch/routing/route_set.rb:235:in `draw'
from /Users/leonardopellicciotta/dev/webtelevideo/config/routes.rb:1
from /Library/Ruby/Gems/1.8/gems/activesupport-3.1.3/lib/active_support/dependencies.rb:234:in `load'
from /Library/Ruby/Gems/1.8/gems/activesupport-3.1.3/lib/active_support/dependencies.rb:234:in `load'
from /Library/Ruby/Gems/1.8/gems/activesupport-3.1.3/lib/active_support/dependencies.rb:223:in `load_dependency'
from /Library/Ruby/Gems/1.8/gems/activesupport-3.1.3/lib/active_support/dependencies.rb:640:in `new_constants_in'
from /Library/Ruby/Gems/1.8/gems/activesupport-3.1.3/lib/active_support/dependencies.rb:223:in `load_dependency'
from /Library/Ruby/Gems/1.8/gems/activesupport-3.1.3/lib/active_support/dependencies.rb:234:in `load'
from /Library/Ruby/Gems/1.8/gems/railties-3.1.3/lib/rails/application/routes_reloader.rb:29:in `load_paths'
from /Library/Ruby/Gems/1.8/gems/railties-3.1.3/lib/rails/application/routes_reloader.rb:29:in `each'
from /Library/Ruby/Gems/1.8/gems/railties-3.1.3/lib/rails/application/routes_reloader.rb:29:in `load_paths'
from /Library/Ruby/Gems/1.8/gems/railties-3.1.3/lib/rails/application/routes_reloader.rb:13:in `reload!'
from /Library/Ruby/Gems/1.8/gems/railties-3.1.3/lib/rails/application.rb:87:in `reload_routes!'
from /Library/Ruby/Gems/1.8/gems/activeadmin-0.3.4/lib/active_admin/reloader.rb:34:in `reload!'
from /Library/Ruby/Gems/1.8/gems/activeadmin-0.3.4/lib/active_admin/reloader.rb:28:in `initialize'
from /Library/Ruby/Gems/1.8/gems/activesupport-3.1.3/lib/active_support/file_update_checker.rb:32:in `call'
from /Library/Ruby/Gems/1.8/gems/activesupport-3.1.3/lib/active_support/file_update_checker.rb:32:in `execute_if_updated'
from /Library/Ruby/Gems/1.8/gems/activeadmin-0.3.4/lib/active_admin/reloader.rb:45:in `_callback_before_19'
from /Library/Ruby/Gems/1.8/gems/activesupport-3.1.3/lib/active_support/callbacks.rb:404:in `_run_prepare_callbacks'
from /Library/Ruby/Gems/1.8/gems/activesupport-3.1.3/lib/active_support/callbacks.rb:81:in `send'
from /Library/Ruby/Gems/1.8/gems/activesupport-3.1.3/lib/active_support/callbacks.rb:81:in `run_callbacks'
from /Library/Ruby/Gems/1.8/gems/actionpack-3.1.3/lib/action_dispatch/middleware/reloader.rb:46:in `prepare!'
from /Library/Ruby/Gems/1.8/gems/railties-3.1.3/lib/rails/application/finisher.rb:41
from /Library/Ruby/Gems/1.8/gems/railties-3.1.3/lib/rails/initializable.rb:30:in `instance_exec'
from /Library/Ruby/Gems/1.8/gems/railties-3.1.3/lib/rails/initializable.rb:30:in `run'
from /Library/Ruby/Gems/1.8/gems/railties-3.1.3/lib/rails/initializable.rb:55:in `run_initializers'
from /Library/Ruby/Gems/1.8/gems/railties-3.1.3/lib/rails/initializable.rb:54:in `each'
from /Library/Ruby/Gems/1.8/gems/railties-3.1.3/lib/rails/initializable.rb:54:in `run_initializers'
from /Library/Ruby/Gems/1.8/gems/railties-3.1.3/lib/rails/application.rb:96:in `initialize!'
from /Library/Ruby/Gems/1.8/gems/railties-3.1.3/lib/rails/railtie/configurable.rb:30:in `send'
from /Library/Ruby/Gems/1.8/gems/railties-3.1.3/lib/rails/railtie/configurable.rb:30:in `method_missing'
from /Users/leonardopellicciotta/dev/webtelevideo/config/environment.rb:5
from /Library/Ruby/Gems/1.8/gems/activesupport-3.1.3/lib/active_support/dependencies.rb:240:in `require'
from /Library/Ruby/Gems/1.8/gems/activesupport-3.1.3/lib/active_support/dependencies.rb:240:in `require'
from /Library/Ruby/Gems/1.8/gems/activesupport-3.1.3/lib/active_support/dependencies.rb:223:in `load_dependency'
from /Library/Ruby/Gems/1.8/gems/activesupport-3.1.3/lib/active_support/dependencies.rb:640:in `new_constants_in'
from /Library/Ruby/Gems/1.8/gems/activesupport-3.1.3/lib/active_support/dependencies.rb:223:in `load_dependency'
from /Library/Ruby/Gems/1.8/gems/activesupport-3.1.3/lib/active_support/dependencies.rb:240:in `require'
from /Library/Ruby/Gems/1.8/gems/railties-3.1.3/lib/rails/application.rb:83:in `require_environment!'
from /Library/Ruby/Gems/1.8/gems/railties-3.1.3/lib/rails/commands.rb:22
from script/rails:6:in `require'
from script/rails:6
如果我这样做：“rake about”
rake aborted!
undefined method `to_sym' for #<Hash:0x1034ddec0>
Tasks: TOP => about => environment
答案 0 :(得分：6)
在routes.rb中，您已经：
devise_for :admin_users, ActiveAdmin::Devise.config, ActiveAdmin::Devise.config
将其替换为：
devise_for :admin_users, ActiveAdmin::Devise.config