ruby on rails - No route matches {:action=>"show", :controller=>"users", :id=>nil} missing required keys: [:id] -

i have devise , users controller show action of user model. routes setup this;

rails.application.routes.draw    resources :docs    resources :documents, only: [:new, :create, :index]    #get 'users/show'    devise_for :admin_users, activeadmin::devise.config   activeadmin.routes(self)   devise_for :users   resources :users, only: [:show]    #resources :users     resources :personal_accounts,path: "user_account", only: [:show]       resources :deposits, only: [:new, :show, :create, :index]       resources :withdraws, only: [:new, :show, :create, :index]     end     resources :businesses       resources :business_accounts, path: "business_account", only: [:show]         resources :business_withdraws, only: [:new, :show, :create, :index]         resources :business_deposits, only: [:new, :show, :create, :index]       end     end   #end    devise_scope :user     authenticated :user       root :to => 'dashboard#index'     end     unauthenticated :user       root :to => 'devise/registrations#new', as: :unauthenticated_root     end   end   namespace :api     namespace :v1, defaults: {format: :json}        resources :payments      resources :withdraws      resources :balances     end   end end 

however route http://localhost:3000/users/1 works fine route http://localhost:3000/documents/new not work , throws error no route matches {:action=>"show", :controller=>"users", :id=>nil} missing required keys: [:id]

trace

started "/documents/new" 127.0.0.1 @ 2015-05-11 14:35:22 +0300 processing documentscontroller#new html   user load (0.7ms)  select  "users".* "users"  "users"."id" = 1  order "users"."id" asc limit 1   rendered documents/_form.html.erb (2.0ms)   rendered documents/new.erb within layouts/application (2.8ms) completed 500 internal server error in 63ms  actioncontroller::urlgenerationerror - no route matches {:action=>"show", :controller=>"users", :id=>nil} missing required keys: [:id]:   actionpack (4.1.0) lib/action_dispatch/routing/route_set.rb:217:in `raise_generation_error'   actionpack (4.1.0) lib/action_dispatch/routing/route_set.rb:190:in `optimized_helper'   actionpack (4.1.0) lib/action_dispatch/routing/route_set.rb:176:in `call'   actionpack (4.1.0) lib/action_dispatch/routing/route_set.rb:268:in `block (2 levels) in define_url_helper'    () users/macbook/desktop/projects/sentenow/app/views/layouts/application.html.erb:106:in `_app_views_layouts_application_html_erb___1472684571148157706_70110268755560'   actionview (4.1.0) lib/action_view/template.rb:145:in `block in render'   activesupport (4.1.0) lib/active_support/notifications.rb:161:in `instrument'   actionview (4.1.0) lib/action_view/template.rb:339:in `instrument'   actionview (4.1.0) lib/action_view/template.rb:143:in `render'   actionview (4.1.0) lib/action_view/renderer/template_renderer.rb:67:in `render_with_layout'   actionview (4.1.0) lib/action_view/renderer/template_renderer.rb:53:in `render_template'   actionview (4.1.0) lib/action_view/renderer/template_renderer.rb:17:in `render'   actionview (4.1.0) lib/action_view/renderer/renderer.rb:42:in `render_template'   actionview (4.1.0) lib/action_view/renderer/renderer.rb:23:in `render'   actionview (4.1.0) lib/action_view/rendering.rb:99:in `_render_template'   actionpack (4.1.0) lib/action_controller/metal/streaming.rb:217:in `_render_template'   actionview (4.1.0) lib/action_view/rendering.rb:82:in `render_to_body'   actionpack (4.1.0) lib/action_controller/metal/rendering.rb:32:in `render_to_body'   actionpack (4.1.0) lib/action_controller/metal/renderers.rb:32:in `render_to_body'   actionpack (4.1.0) lib/abstract_controller/rendering.rb:25:in `render'   actionpack (4.1.0) lib/action_controller/metal/rendering.rb:16:in `render'   actionpack (4.1.0) lib/action_controller/metal/instrumentation.rb:41:in `block (2 levels) in render'   activesupport (4.1.0) lib/active_support/core_ext/benchmark.rb:12:in `block in ms'    () users/macbook/.rvm/rubies/ruby-2.1.2/lib/ruby/2.1.0/benchmark.rb:294:in `realtime'   activesupport (4.1.0) lib/active_support/core_ext/benchmark.rb:12:in `ms'   actionpack (4.1.0) lib/action_controller/metal/instrumentation.rb:41:in `block in render'   actionpack (4.1.0) lib/action_controller/metal/instrumentation.rb:84:in `cleanup_view_runtime'   activerecord (4.1.0) lib/active_record/railties/controller_runtime.rb:25:in `cleanup_view_runtime'   actionpack (4.1.0) lib/action_controller/metal/instrumentation.rb:40:in `render'   actionpack (4.1.0) lib/action_controller/metal/implicit_render.rb:10:in `default_render'   actionpack (4.1.0) lib/action_controller/metal/implicit_render.rb:5:in `send_action'   actionpack (4.1.0) lib/abstract_controller/base.rb:189:in `process_action'   actionpack (4.1.0) lib/action_controller/metal/rendering.rb:10:in `process_action'   actionpack (4.1.0) lib/abstract_controller/callbacks.rb:20:in `block in process_action'   activesupport (4.1.0) lib/active_support/callbacks.rb:113:in `call'   activesupport (4.1.0) lib/active_support/callbacks.rb:166:in `block in halting'   activesupport (4.1.0) lib/active_support/callbacks.rb:149:in `block in halting_and_conditional'   activesupport (4.1.0) lib/active_support/callbacks.rb:166:in `block in halting'   activesupport (4.1.0) lib/active_support/callbacks.rb:149:in `block in halting_and_conditional'   activesupport (4.1.0) lib/active_support/callbacks.rb:229:in `block in halting'   activesupport (4.1.0) lib/active_support/callbacks.rb:229:in `block in halting'   activesupport (4.1.0) lib/active_support/callbacks.rb:166:in `block in halting'   activesupport (4.1.0) lib/active_support/callbacks.rb:166:in `block in halting'   activesupport (4.1.0) lib/active_support/callbacks.rb:166:in `block in halting'   activesupport (4.1.0) lib/active_support/callbacks.rb:86:in `run_callbacks'   actionpack (4.1.0) lib/abstract_controller/callbacks.rb:19:in `process_action'   actionpack (4.1.0) lib/action_controller/metal/rescue.rb:29:in `process_action'   actionpack (4.1.0) lib/action_controller/metal/instrumentation.rb:31:in `block in process_action'   activesupport (4.1.0) lib/active_support/notifications.rb:159:in `block in instrument'   activesupport (4.1.0) lib/active_support/notifications/instrumenter.rb:20:in `instrument'   activesupport (4.1.0) lib/active_support/notifications.rb:159:in `instrument'   actionpack (4.1.0) lib/action_controller/metal/instrumentation.rb:30:in `process_action'   actionpack (4.1.0) lib/action_controller/metal/params_wrapper.rb:250:in `process_action'   activerecord (4.1.0) lib/active_record/railties/controller_runtime.rb:18:in `process_action'   actionpack (4.1.0) lib/abstract_controller/base.rb:136:in `process'   actionview (4.1.0) lib/action_view/rendering.rb:30:in `process'   actionpack (4.1.0) lib/action_controller/metal.rb:195:in `dispatch'   actionpack (4.1.0) lib/action_controller/metal/rack_delegation.rb:13:in `dispatch'   actionpack (4.1.0) lib/action_controller/metal.rb:231:in `block in action'   actionpack (4.1.0) lib/action_dispatch/routing/route_set.rb:80:in `dispatch'   actionpack (4.1.0) lib/action_dispatch/routing/route_set.rb:48:in `call'   actionpack (4.1.0) lib/action_dispatch/journey/router.rb:71:in `block in call'   actionpack (4.1.0) lib/action_dispatch/journey/router.rb:59:in `call'   actionpack (4.1.0) lib/action_dispatch/routing/route_set.rb:676: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 `call'   rack (1.5.2) lib/rack/etag.rb:23:in `call'   rack (1.5.2) lib/rack/conditionalget.rb:25:in `call'   rack (1.5.2) lib/rack/head.rb:11:in `call'   actionpack (4.1.0) lib/action_dispatch/middleware/params_parser.rb:27:in `call'   actionpack (4.1.0) lib/action_dispatch/middleware/flash.rb:254:in `call'   rack (1.5.2) lib/rack/session/abstract/id.rb:225:in `context'   rack (1.5.2) lib/rack/session/abstract/id.rb:220:in `call'   actionpack (4.1.0) lib/action_dispatch/middleware/cookies.rb:560:in `call'   activerecord (4.1.0) lib/active_record/query_cache.rb:36:in `call'   activerecord (4.1.0) lib/active_record/connection_adapters/abstract/connection_pool.rb:621:in `call'   activerecord (4.1.0) lib/active_record/migration.rb:380:in `call'   actionpack (4.1.0) lib/action_dispatch/middleware/callbacks.rb:29:in `block in call'   activesupport (4.1.0) lib/active_support/callbacks.rb:82:in `run_callbacks'   actionpack (4.1.0) lib/action_dispatch/middleware/callbacks.rb:27:in `call'   actionpack (4.1.0) lib/action_dispatch/middleware/reloader.rb:73:in `call'   actionpack (4.1.0) lib/action_dispatch/middleware/remote_ip.rb:76:in `call'   better_errors (1.1.0) lib/better_errors/middleware.rb:84:in `protected_app_call'   better_errors (1.1.0) lib/better_errors/middleware.rb:79:in `better_errors_call'   better_errors (1.1.0) lib/better_errors/middleware.rb:56:in `call'   actionpack (4.1.0) lib/action_dispatch/middleware/debug_exceptions.rb:17:in `call'   actionpack (4.1.0) lib/action_dispatch/middleware/show_exceptions.rb:30:in `call'   railties (4.1.0) lib/rails/rack/logger.rb:38:in `call_app'   railties (4.1.0) lib/rails/rack/logger.rb:20:in `block in call'   activesupport (4.1.0) lib/active_support/tagged_logging.rb:68:in `block in tagged'   activesupport (4.1.0) lib/active_support/tagged_logging.rb:26:in `tagged'   activesupport (4.1.0) lib/active_support/tagged_logging.rb:68:in `tagged'   railties (4.1.0) lib/rails/rack/logger.rb:20:in `call'   actionpack (4.1.0) lib/action_dispatch/middleware/request_id.rb:21:in `call'   rack (1.5.2) lib/rack/methodoverride.rb:21:in `call'   rack (1.5.2) lib/rack/runtime.rb:17:in `call'   activesupport (4.1.0) lib/active_support/cache/strategy/local_cache_middleware.rb:26:in `call'   rack (1.5.2) lib/rack/lock.rb:17:in `call'   actionpack (4.1.0) lib/action_dispatch/middleware/static.rb:64:in `call'   rack (1.5.2) lib/rack/sendfile.rb:112:in `call'   railties (4.1.0) lib/rails/engine.rb:514:in `call'   railties (4.1.0) lib/rails/application.rb:144:in `call'   rack (1.5.2) lib/rack/lock.rb:17:in `call'   rack (1.5.2) lib/rack/content_length.rb:14:in `call'   rack (1.5.2) lib/rack/handler/webrick.rb:60:in `service'    () users/macbook/.rvm/rubies/ruby-2.1.2/lib/ruby/2.1.0/webrick/httpserver.rb:138:in `service'    () users/macbook/.rvm/rubies/ruby-2.1.2/lib/ruby/2.1.0/webrick/httpserver.rb:94:in `run'    () users/macbook/.rvm/rubies/ruby-2.1.2/lib/ruby/2.1.0/webrick/server.rb:295:in `block in start_thread'    started post "/__better_errors/70110284044440/variables" 127.0.0.1 @ 2015-05-11 14:35:22 +0300 

any idea totally unrelated error arises from? thank you