请帮助解决问题。
我使用gem＆＃39; activeadmin＆＃39;版本1.0.0。我的路线文件是：
Rails.application.routes.draw do
ActiveAdmin.routes(self)
devise_for :users, ActiveAdmin::Devise.config
resources :reviews
root 'reviews#index'
end
rake routes：
kalinin@kalinin ~/rails/admin_book $ rake routes
Prefix Verb URI Pattern Controller#Action
admin_root GET /admin(.:format) admin/dashboard#index
batch_action_admin_reviews POST /admin/reviews/batch_action(.:format) admin/reviews#batch_action
admin_reviews GET /admin/reviews(.:format) admin/reviews#index
POST /admin/reviews(.:format) admin/reviews#create
new_admin_review GET /admin/reviews/new(.:format) admin/reviews#new
edit_admin_review GET /admin/reviews/:id/edit(.:format) admin/reviews#edit
admin_review GET /admin/reviews/:id(.:format) admin/reviews#show
PATCH /admin/reviews/:id(.:format) admin/reviews#update
PUT /admin/reviews/:id(.:format) admin/reviews#update
DELETE /admin/reviews/:id(.:format) admin/reviews#destroy
admin_dashboard GET /admin/dashboard(.:format) admin/dashboard#index
batch_action_admin_users POST /admin/users/batch_action(.:format) admin/users#batch_action
admin_users GET /admin/users(.:format) admin/users#index
POST /admin/users(.:format) admin/users#create
new_admin_user GET /admin/users/new(.:format) admin/users#new
edit_admin_user GET /admin/users/:id/edit(.:format) admin/users#edit
admin_user GET /admin/users/:id(.:format) admin/users#show
PATCH /admin/users/:id(.:format) admin/users#update
PUT /admin/users/:id(.:format) admin/users#update
DELETE /admin/users/:id(.:format) admin/users#destroy
admin_comments GET /admin/comments(.:format) admin/comments#index
POST /admin/comments(.:format) admin/comments#create
admin_comment GET /admin/comments/:id(.:format) admin/comments#show
DELETE /admin/comments/:id(.:format) admin/comments#destroy
new_user_session GET /admin/login(.:format) active_admin/devise/sessions#new
user_session POST /admin/login(.:format) active_admin/devise/sessions#create
destroy_user_session DELETE|GET /admin/logout(.:format) active_admin/devise/sessions#destroy
user_password POST /admin/password(.:format) active_admin/devise/passwords#create
new_user_password GET /admin/password/new(.:format) active_admin/devise/passwords#new
edit_user_password GET /admin/password/edit(.:format) active_admin/devise/passwords#edit
PATCH /admin/password(.:format) active_admin/devise/passwords#update
PUT /admin/password(.:format) active_admin/devise/passwords#update
reviews GET /reviews(.:format) reviews#index
POST /reviews(.:format) reviews#create
new_review GET /reviews/new(.:format) reviews#new
edit_review GET /reviews/:id/edit(.:format) reviews#edit
review GET /reviews/:id(.:format) reviews#show
PATCH /reviews/:id(.:format) reviews#update
PUT /reviews/:id(.:format) reviews#update
DELETE /reviews/:id(.:format) reviews#destroy
root GET / reviews#index
通过＆＃;; rails server＆＃39;运行我的应用程序后并打开地址http://localhost:3000/admin，浏览器显示以下错误消息：
Admin :: DashboardController中的NameError #index uninitialized constant 仪表板
请帮忙解决。
PS： 我读了这个帖子： https://github.com/activeadmin/activeadmin/issues/2053 但它没有帮助
PS2： 我不想使用0.6.0版本
回溯：
Started GET "/admin" for 127.0.0.1 at 2015-09-28 23:32:20 +0300
ActiveRecord::SchemaMigration Load (0.2ms) SELECT "schema_migrations".* FROM "schema_migrations"
Processing by Admin::DashboardController#index as HTML
Completed 500 Internal Server Error in 20ms (ActiveRecord: 0.0ms)
NameError (uninitialized constant Dashboard):
activesupport (4.2.1) lib/active_support/inflector/methods.rb:261:in `const_get'
activesupport (4.2.1) lib/active_support/inflector/methods.rb:261:in `block in constantize'
activesupport (4.2.1) lib/active_support/inflector/methods.rb:259:in `each'
activesupport (4.2.1) lib/active_support/inflector/methods.rb:259:in `inject'
activesupport (4.2.1) lib/active_support/inflector/methods.rb:259:in `constantize'
activesupport (4.2.1) lib/active_support/core_ext/string/inflections.rb:66:in `constantize'
cancancan (1.12.0) lib/cancan/controller_resource.rb:150:in `resource_class'
cancancan (1.12.0) lib/cancan/controller_resource.rb:157:in `resource_class_with_parent'
cancancan (1.12.0) lib/cancan/controller_resource.rb:41:in `authorize_resource'
cancancan (1.12.0) lib/cancan/controller_resource.rb:26:in `load_and_authorize_resource'
cancancan (1.12.0) lib/cancan/controller_resource.rb:10:in `block in add_before_filter'
activesupport (4.2.1) lib/active_support/callbacks.rb:448:in `instance_exec'
activesupport (4.2.1) lib/active_support/callbacks.rb:448:in `block in make_lambda'
activesupport (4.2.1) lib/active_support/callbacks.rb:164:in `call'
activesupport (4.2.1) lib/active_support/callbacks.rb:164:in `block in halting'
activesupport (4.2.1) lib/active_support/callbacks.rb:504:in `call'
activesupport (4.2.1) lib/active_support/callbacks.rb:504:in `block in call'
activesupport (4.2.1) lib/active_support/callbacks.rb:504:in `each'
activesupport (4.2.1) lib/active_support/callbacks.rb:504:in `call'
activesupport (4.2.1) lib/active_support/callbacks.rb:92:in `_run_callbacks'
activesupport (4.2.1) lib/active_support/callbacks.rb:776:in `_run_process_action_callbacks'
activesupport (4.2.1) lib/active_support/callbacks.rb:81:in `run_callbacks'
actionpack (4.2.1) lib/abstract_controller/callbacks.rb:19:in `process_action'
actionpack (4.2.1) lib/action_controller/metal/rescue.rb:29:in `process_action'
actionpack (4.2.1) lib/action_controller/metal/instrumentation.rb:32:in `block in process_action'
activesupport (4.2.1) lib/active_support/notifications.rb:164:in `block in instrument'
activesupport (4.2.1) lib/active_support/notifications/instrumenter.rb:20:in `instrument'
activesupport (4.2.1) lib/active_support/notifications.rb:164:in `instrument'
actionpack (4.2.1) lib/action_controller/metal/instrumentation.rb:30:in `process_action'
actionpack (4.2.1) lib/action_controller/metal/params_wrapper.rb:250:in `process_action'
activerecord (4.2.1) lib/active_record/railties/controller_runtime.rb:18:in `process_action'
actionpack (4.2.1) lib/abstract_controller/base.rb:137:in `process'
actionview (4.2.1) lib/action_view/rendering.rb:30:in `process'
actionpack (4.2.1) lib/action_controller/metal.rb:196:in `dispatch'
actionpack (4.2.1) lib/action_controller/metal/rack_delegation.rb:13:in `dispatch'
actionpack (4.2.1) lib/action_controller/metal.rb:237:in `block in action'
actionpack (4.2.1) lib/action_dispatch/routing/route_set.rb:74:in `call'
actionpack (4.2.1) lib/action_dispatch/routing/route_set.rb:74:in `dispatch'
actionpack (4.2.1) lib/action_dispatch/routing/route_set.rb:43:in `serve'
actionpack (4.2.1) lib/action_dispatch/journey/router.rb:43:in `block in serve'
actionpack (4.2.1) lib/action_dispatch/journey/router.rb:30:in `each'
actionpack (4.2.1) lib/action_dispatch/journey/router.rb:30:in `serve'
actionpack (4.2.1) lib/action_dispatch/routing/route_set.rb:819:in `call'
warden (1.2.3) lib/warden/manager.rb:35:in `block in call'
warden (1.2.3) lib/warden/manager.rb:34:in `catch'
warden (1.2.3) lib/warden/manager.rb:34:in `call'
rack (1.6.4) lib/rack/etag.rb:24:in `call'
rack (1.6.4) lib/rack/conditionalget.rb:25:in `call'
rack (1.6.4) lib/rack/head.rb:13:in `call'
actionpack (4.2.1) lib/action_dispatch/middleware/params_parser.rb:27:in `call'
actionpack (4.2.1) lib/action_dispatch/middleware/flash.rb:260:in `call'
rack (1.6.4) lib/rack/session/abstract/id.rb:225:in `context'
rack (1.6.4) lib/rack/session/abstract/id.rb:220:in `call'
actionpack (4.2.1) lib/action_dispatch/middleware/cookies.rb:560:in `call'
activerecord (4.2.1) lib/active_record/query_cache.rb:36:in `call'
activerecord (4.2.1) lib/active_record/connection_adapters/abstract/connection_pool.rb:649:in `call'
activerecord (4.2.1) lib/active_record/migration.rb:378:in `call'
actionpack (4.2.1) lib/action_dispatch/middleware/callbacks.rb:29:in `block in call'
activesupport (4.2.1) lib/active_support/callbacks.rb:88:in `call'
activesupport (4.2.1) lib/active_support/callbacks.rb:88:in `_run_callbacks'
activesupport (4.2.1) lib/active_support/callbacks.rb:776:in `_run_call_callbacks'
activesupport (4.2.1) lib/active_support/callbacks.rb:81:in `run_callbacks'
actionpack (4.2.1) lib/action_dispatch/middleware/callbacks.rb:27:in `call'
actionpack (4.2.1) lib/action_dispatch/middleware/reloader.rb:73:in `call'
actionpack (4.2.1) lib/action_dispatch/middleware/remote_ip.rb:78:in `call'
actionpack (4.2.1) lib/action_dispatch/middleware/debug_exceptions.rb:17:in `call'
web-console (2.2.1) lib/web_console/middleware.rb:39:in `call'
actionpack (4.2.1) lib/action_dispatch/middleware/show_exceptions.rb:30:in `call'
railties (4.2.1) lib/rails/rack/logger.rb:38:in `call_app'
railties (4.2.1) lib/rails/rack/logger.rb:20:in `block in call'
activesupport (4.2.1) lib/active_support/tagged_logging.rb:68:in `block in tagged'
activesupport (4.2.1) lib/active_support/tagged_logging.rb:26:in `tagged'
activesupport (4.2.1) lib/active_support/tagged_logging.rb:68:in `tagged'
railties (4.2.1) lib/rails/rack/logger.rb:20:in `call'
actionpack (4.2.1) lib/action_dispatch/middleware/request_id.rb:21:in `call'
rack (1.6.4) lib/rack/methodoverride.rb:22:in `call'
rack (1.6.4) lib/rack/runtime.rb:18:in `call'
activesupport (4.2.1) lib/active_support/cache/strategy/local_cache_middleware.rb:28:in `call'
rack (1.6.4) lib/rack/lock.rb:17:in `call'
actionpack (4.2.1) lib/action_dispatch/middleware/static.rb:113:in `call'
rack (1.6.4) lib/rack/sendfile.rb:113:in `call'
railties (4.2.1) lib/rails/engine.rb:518:in `call'
railties (4.2.1) lib/rails/application.rb:164:in `call'
rack (1.6.4) lib/rack/lock.rb:17:in `call'
rack (1.6.4) lib/rack/content_length.rb:15:in `call'
rack (1.6.4) lib/rack/handler/webrick.rb:88:in `service'
/home/kalinin/.rvm/rubies/ruby-2.0.0-p598/lib/ruby/2.0.0/webrick/httpserver.rb:138:in `service'
/home/kalinin/.rvm/rubies/ruby-2.0.0-p598/lib/ruby/2.0.0/webrick/httpserver.rb:94:in `run'
/home/kalinin/.rvm/rubies/ruby-2.0.0-p598/lib/ruby/2.0.0/webrick/server.rb:295:in `block in start_thread'
应用程序/管理/ dashboard.rb：
ActiveAdmin.register_page "Dashboard" do
menu priority: 1, label: proc{ I18n.t("active_admin.dashboard") }
content title: proc{ I18n.t("active_admin.dashboard") } do
div class: "blank_slate_container", id: "dashboard_default_message" do
span class: "blank_slate" do
span I18n.t("active_admin.dashboard_welcome.welcome")
small I18n.t("active_admin.dashboard_welcome.call_to_action")
end
end
columns do
column do
panel "Other links" do
link_to("to public", root_path)
end
end
column do
panel "other info" do
'lorem ipsum '
end
end
end
end
end
答案 0 :(得分：0)
问题似乎不在您的路线中。再看一下错误：
Admin :: DashboardController中的NameError #index uninitialized constant 仪表板
看来您有一个名为DashboardController的控制器，其中有代码处理'索引'，即HTTP GET动词。该代码失败，因为您有一个未使用值初始化的名为Dashboard的常量。