Pourquoi mon serveur de développement ne se charge-t-il pas? default_controller_and_action ': manquant: action (ArgumentError)

Question

Je suis un Rubis nuby (et de nouveau à Débordement de Pile) à travailler sur les Rails Tutoriel par Michael Hartl et tout d'un coup mon serveur de développement ne se charge pas et maintient la sortie. Console ne se charge pas et Rspec spec/ produit des erreurs/exceptions. Je suis, y compris certains de sortie de la borne, votre aide est très appréciée.

Exiting
/Users/ameedachowdhury/.rvm/gems/ruby-1.9.2-p0@rails3tutorial/gems/actionpack-3.0.3/lib/action_dispatch/routing/mapper.rb:164:in `default_controller_and_action': missing :action (ArgumentError)
    from /Users/ameedachowdhury/.rvm/gems/ruby-1.9.2-p0@rails3tutorial/gems/actionpack-3.0.3/lib/action_dispatch/routing/mapper.rb:68:in `normalize_options!'
    from /Users/ameedachowdhury/.rvm/gems/ruby-1.9.2-p0@rails3tutorial/gems/actionpack-3.0.3/lib/action_dispatch/routing/mapper.rb:51:in `initialize'
    from /Users/ameedachowdhury/.rvm/gems/ruby-1.9.2-p0@rails3tutorial/gems/actionpack-3.0.3/lib/action_dispatch/routing/mapper.rb:261:in `new'
    from /Users/ameedachowdhury/.rvm/gems/ruby-1.9.2-p0@rails3tutorial/gems/actionpack-3.0.3/lib/action_dispatch/routing/mapper.rb:261:in `match'
    from /Users/ameedachowdhury/.rvm/gems/ruby-1.9.2-p0@rails3tutorial/gems/actionpack-3.0.3/lib/action_dispatch/routing/mapper.rb:1112:in `match'
    from /Users/ameedachowdhury/.rvm/gems/ruby-1.9.2-p0@rails3tutorial/gems/actionpack-3.0.3/lib/action_dispatch/routing/mapper.rb:1297:in `match'
    from /Users/ameedachowdhury/rails_projects/railstutorial/config/routes.rb:11:in `block in <top (required)>'
    from /Users/ameedachowdhury/.rvm/gems/ruby-1.9.2-p0@rails3tutorial/gems/actionpack-3.0.3/lib/action_dispatch/routing/route_set.rb:233:in `instance_exec'
    from /Users/ameedachowdhury/.rvm/gems/ruby-1.9.2-p0@rails3tutorial/gems/actionpack-3.0.3/lib/action_dispatch/routing/route_set.rb:233:in `draw'
    from /Users/ameedachowdhury/rails_projects/railstutorial/config/routes.rb:1:in `<top (required)>'
    from /Users/ameedachowdhury/.rvm/gems/ruby-1.9.2-p0@rails3tutorial/gems/activesupport-3.0.3/lib/active_support/dependencies.rb:235:in `load'
    from /Users/ameedachowdhury/.rvm/gems/ruby-1.9.2-p0@rails3tutorial/gems/activesupport-3.0.3/lib/active_support/dependencies.rb:235:in `block in load'
    from /Users/ameedachowdhury/.rvm/gems/ruby-1.9.2-p0@rails3tutorial/gems/activesupport-3.0.3/lib/active_support/dependencies.rb:225:in `block in load_dependency'
    from /Users/ameedachowdhury/.rvm/gems/ruby-1.9.2-p0@rails3tutorial/gems/activesupport-3.0.3/lib/active_support/dependencies.rb:596:in `new_constants_in'
    from /Users/ameedachowdhury/.rvm/gems/ruby-1.9.2-p0@rails3tutorial/gems/activesupport-3.0.3/lib/active_support/dependencies.rb:225:in `load_dependency'
    from /Users/ameedachowdhury/.rvm/gems/ruby-1.9.2-p0@rails3tutorial/gems/activesupport-3.0.3/lib/active_support/dependencies.rb:235:in `load'
    from /Users/ameedachowdhury/.rvm/gems/ruby-1.9.2-p0@rails3tutorial/gems/railties-3.0.3/lib/rails/application.rb:127:in `block in reload_routes!'
    from /Users/ameedachowdhury/.rvm/gems/ruby-1.9.2-p0@rails3tutorial/gems/railties-3.0.3/lib/rails/application.rb:127:in `each'
    from /Users/ameedachowdhury/.rvm/gems/ruby-1.9.2-p0@rails3tutorial/gems/railties-3.0.3/lib/rails/application.rb:127:in `reload_routes!'
    from /Users/ameedachowdhury/.rvm/gems/ruby-1.9.2-p0@rails3tutorial/gems/railties-3.0.3/lib/rails/application.rb:120:in `block in routes_reloader'
    from /Users/ameedachowdhury/.rvm/gems/ruby-1.9.2-p0@rails3tutorial/gems/activesupport-3.0.3/lib/active_support/file_update_checker.rb:32:in `call'
    from /Users/ameedachowdhury/.rvm/gems/ruby-1.9.2-p0@rails3tutorial/gems/activesupport-3.0.3/lib/active_support/file_update_checker.rb:32:in `execute_if_updated'
    from /Users/ameedachowdhury/.rvm/gems/ruby-1.9.2-p0@rails3tutorial/gems/railties-3.0.3/lib/rails/application/finisher.rb:51:in `block (2 levels) in <module:Finisher>'
    from /Users/ameedachowdhury/.rvm/gems/ruby-1.9.2-p0@rails3tutorial/gems/railties-3.0.3/lib/rails/application/finisher.rb:52:in `call'
    from /Users/ameedachowdhury/.rvm/gems/ruby-1.9.2-p0@rails3tutorial/gems/railties-3.0.3/lib/rails/application/finisher.rb:52:in `block in <module:Finisher>'
    from /Users/ameedachowdhury/.rvm/gems/ruby-1.9.2-p0@rails3tutorial/gems/railties-3.0.3/lib/rails/initializable.rb:25:in `instance_exec'
    from /Users/ameedachowdhury/.rvm/gems/ruby-1.9.2-p0@rails3tutorial/gems/railties-3.0.3/lib/rails/initializable.rb:25:in `run'
    from /Users/ameedachowdhury/.rvm/gems/ruby-1.9.2-p0@rails3tutorial/gems/railties-3.0.3/lib/rails/initializable.rb:50:in `block in run_initializers'
    from /Users/ameedachowdhury/.rvm/gems/ruby-1.9.2-p0@rails3tutorial/gems/railties-3.0.3/lib/rails/initializable.rb:49:in `each'
    from /Users/ameedachowdhury/.rvm/gems/ruby-1.9.2-p0@rails3tutorial/gems/railties-3.0.3/lib/rails/initializable.rb:49:in `run_initializers'
    from /Users/ameedachowdhury/.rvm/gems/ruby-1.9.2-p0@rails3tutorial/gems/railties-3.0.3/lib/rails/application.rb:134:in `initialize!'
    from /Users/ameedachowdhury/.rvm/gems/ruby-1.9.2-p0@rails3tutorial/gems/railties-3.0.3/lib/rails/application.rb:77:in `method_missing'
    from /Users/ameedachowdhury/rails_projects/railstutorial/config/environment.rb:5:in `<top (required)>'
    from /Users/ameedachowdhury/rails_projects/railstutorial/config.ru:3:in `require'
    from /Users/ameedachowdhury/rails_projects/railstutorial/config.ru:3:in `block in <main>'
    from /Users/ameedachowdhury/.rvm/gems/ruby-1.9.2-p0@rails3tutorial/gems/rack-1.2.1/lib/rack/builder.rb:46:in `instance_eval'
    from /Users/ameedachowdhury/.rvm/gems/ruby-1.9.2-p0@rails3tutorial/gems/rack-1.2.1/lib/rack/builder.rb:46:in `initialize'
    from /Users/ameedachowdhury/rails_projects/railstutorial/config.ru:1:in `new'
    from /Users/ameedachowdhury/rails_projects/railstutorial/config.ru:1:in `<main>'
    from /Users/ameedachowdhury/.rvm/gems/ruby-1.9.2-p0@rails3tutorial/gems/rack-1.2.1/lib/rack/builder.rb:35:in `eval'
    from /Users/ameedachowdhury/.rvm/gems/ruby-1.9.2-p0@rails3tutorial/gems/rack-1.2.1/lib/rack/builder.rb:35:in `parse_file'
    from /Users/ameedachowdhury/.rvm/gems/ruby-1.9.2-p0@rails3tutorial/gems/rack-1.2.1/lib/rack/server.rb:162:in `app'
    from /Users/ameedachowdhury/.rvm/gems/ruby-1.9.2-p0@rails3tutorial/gems/rack-1.2.1/lib/rack/server.rb:248:in `wrapped_app'
    from /Users/ameedachowdhury/.rvm/gems/ruby-1.9.2-p0@rails3tutorial/gems/rack-1.2.1/lib/rack/server.rb:213:in `start'
    from /Users/ameedachowdhury/.rvm/gems/ruby-1.9.2-p0@rails3tutorial/gems/railties-3.0.3/lib/rails/commands/server.rb:65:in `start'
    from /Users/ameedachowdhury/.rvm/gems/ruby-1.9.2-p0@rails3tutorial/gems/railties-3.0.3/lib/rails/commands.rb:30:in `block in <top (required)>'
    from /Users/ameedachowdhury/.rvm/gems/ruby-1.9.2-p0@rails3tutorial/gems/railties-3.0.3/lib/rails/commands.rb:27:in `tap'
    from /Users/ameedachowdhury/.rvm/gems/ruby-1.9.2-p0@rails3tutorial/gems/railties-3.0.3/lib/rails/commands.rb:27:in `<top (required)>'
    from script/rails:6:in `require'
    from script/rails:6:in `<main>'
ameeda-chowdhurys-macbook:railstutorial ameedachowdhury$ 

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Answer 1

Quand je suis tombé sur ce problème, c'est parce que l'un des itinéraires en routes.rb avaient une barre oblique (/) au lieu de la table de hachage (#) lors de l'utilisation de l' controller#action de la syntaxe (j'ai utilisé du "controller/action", ce qui est inexact).

Par exemple, j'ai accidentellement avait root :to => 'home/index'. Il était censé être root :to => 'home#index'.

J'ai trouvé cette solution ici.

Answer 2

Cela est dû à des itinéraires incorrects -
Veuillez vérifier votre config / routes.rb, même si une route mentionnée est fausse alors cette erreur est levée !!
Assurez-vous également que l'itinéraire est

 '/url/for/something' => 'controller#action'
 

ou

 root :to => 'controller#action
 

Answer 3

Je suis aussi un Rubis nuby et avait la même erreur tout en travaillant sur les Rails Tutoriel par Michael Hartl. Si vous êtes comme moi, vous risquez de vous, juste en tapant dans tout le code qui apparaît dans le livre, avec de la lecture ou la compréhension du texte. Tout n'est pas, étape par étape. Dans la démonstration de chameau cas vs snake cas Hartl montre une boîte avec le code suivant

$ rails generate controller static_pages ...

Ici, Hartl est tout simplement essayer de contraste instructions pour générer un StaticPages contrôleur à l'aide de serpent cas, plutôt que de chameau cas, ce qui a été fait dans le Listing 3.4. Les points "..." sont tout simplement de modifier ou de tronquer le reste des instructions pour la ligne de cmd. J'ai tapé exactement ce qui a été montré et d'une liquidation suivant dans mon fichier de routes:

SampleApp::Application.routes.draw do
 get "static_pages/..."

 get "static_pages/home"

 get "static_pages/help"

ouvrez votre fichier de routes, de supprimer

get "static_pages/..."

enregistrez le fichier de routes, et essayez de démarrer le serveur rails de nouveau.

J'ai aussi détruit "les rails de générer contrôleur static_pages ..." je ne sais Pas si cela a eu un effet quelconque, mais maintenant tout fonctionne.

Answer 4

Par défaut, vous obtenez ceci:

 Rails.application.routes.draw do
  get 'static_pages/...'

  get 'static_pages/home'

  get 'static_pages/help'
 

EFFACER JUSTE CECI:

   get 'static_pages/...'
 

ET VOUS L'AVEZ DANS LE FICHIER ROUTES.RB

 Rails.application.routes.draw do

  get 'static_pages/home'

  get 'static_pages/help'
 

Answer 5

Dans mon cas, cela a été causé par la barre oblique du suffixe «/» dans certains de mes itinéraires. Par exemple

 post 'load_query/'
 

Après avoir supprimé ce suffixe pour

 post 'load_query'
 

ça a marché.