Added the correct hierarchy of controllers for the administrative part

app/controllers/admin_controller.rb → app/controllers/admin/application_controller.rb

 # Provides a base class for Admin controllers to subclass
 #
 # Automatically sets the layout and ensures an administrator is logged in
-class AdminController < ApplicationController
+class Admin::ApplicationController < ApplicationController
   layout 'admin'
   before_filter :authenticate_admin!

app/controllers/admin/dashboard_controller.rb

-class Admin::DashboardController < AdminController
+class Admin::DashboardController < Admin::ApplicationController
   def index
     @projects = Project.order("created_at DESC").limit(10)
     @users = User.order("created_at DESC").limit(10)

app/controllers/admin/groups_controller.rb

-class Admin::GroupsController < AdminController
+class Admin::GroupsController < Admin::ApplicationController
   before_filter :group, only: [:edit, :show, :update, :destroy, :project_update, :project_teams_update]
   def index

app/controllers/admin/hooks_controller.rb

-class Admin::HooksController < AdminController
+class Admin::HooksController < Admin::ApplicationController
   def index
     @hooks = SystemHook.all
     @hook = SystemHook.new

app/controllers/admin/logs_controller.rb

-class Admin::LogsController < AdminController
+class Admin::LogsController < Admin::ApplicationController
 end

app/controllers/admin/projects_controller.rb

-class Admin::ProjectsController < AdminController
+class Admin::ProjectsController < Admin::ApplicationController
   before_filter :project, only: [:edit, :show, :update, :destroy, :team_update]
   def index

app/controllers/admin/resque_controller.rb

-class Admin::ResqueController < AdminController
+class Admin::ResqueController < Admin::ApplicationController
   def show
   end
 end

app/controllers/admin/team_members_controller.rb

-class Admin::TeamMembersController < AdminController
+class Admin::TeamMembersController < Admin::ApplicationController
   def edit
     @admin_team_member = UsersProject.find(params[:id])
   end

app/controllers/admin/teams_controller.rb

-class Admin::TeamsController < AdminController
+class Admin::TeamsController < Admin::ApplicationController
   before_filter :user_team,
                 only: [ :edit, :show, :update, :destroy,
                         :delegate_projects, :relegate_project,

app/controllers/admin/users_controller.rb

-class Admin::UsersController < AdminController
+class Admin::UsersController < Admin::ApplicationController
   def index
     @admin_users = User.scoped
     @admin_users = @admin_users.filter(params[:filter])