Fehler beim Ausführen von Rails s Befehl in Ubuntu

Question

Immer wenn ich Rails s, anstatt den Server laufen zu lassen, es sofort beendet. Ich entschuldige mich, wenn das eine lächerliche Frage ist, ich bin sehr neu auf Schienen und Ubuntu. Ich bin mir nicht sicher, ob Sie noch weitere Informationen benötigen.

=> Booting WEBrick 
=> Rails 5.0.1 application starting in development on http://localhost:3000 
=> Run `rails server -h` for more startup options 
Exiting 
/var/lib/gems/2.3.0/gems/spree_core-3.2.0.rc3/app/models/spree/base.rb:1:in `<top (required)>': uninitialized constant ApplicationRecord (NameError) 
    from /var/lib/gems/2.3.0/gems/activesupport-5.0.1/lib/active_support/dependencies/interlock.rb:12:in `block in loading' 
    from /var/lib/gems/2.3.0/gems/activesupport-5.0.1/lib/active_support/concurrency/share_lock.rb:150:in `exclusive' 
    from /var/lib/gems/2.3.0/gems/activesupport-5.0.1/lib/active_support/dependencies/interlock.rb:11:in `loading' 
    from /var/lib/gems/2.3.0/gems/spree_core-3.2.0.rc3/app/models/spree/payment_method.rb:2:in `<module:Spree>' 
    from /var/lib/gems/2.3.0/gems/spree_core-3.2.0.rc3/app/models/spree/payment_method.rb:1:in `<top (required)>' 
    from /var/lib/gems/2.3.0/gems/activesupport-5.0.1/lib/active_support/dependencies/interlock.rb:12:in `block in loading' 
    from /var/lib/gems/2.3.0/gems/activesupport-5.0.1/lib/active_support/concurrency/share_lock.rb:150:in `exclusive' 
    from /var/lib/gems/2.3.0/gems/activesupport-5.0.1/lib/active_support/dependencies/interlock.rb:11:in `loading' 
    from /var/lib/gems/2.3.0/gems/spree_core-3.2.0.rc3/app/models/spree/gateway.rb:2:in `<module:Spree>' 
    from /var/lib/gems/2.3.0/gems/spree_core-3.2.0.rc3/app/models/spree/gateway.rb:1:in `<top (required)>' 
    from /var/lib/gems/2.3.0/gems/activesupport-5.0.1/lib/active_support/dependencies/interlock.rb:12:in `block in loading' 
    from /var/lib/gems/2.3.0/gems/activesupport-5.0.1/lib/active_support/concurrency/share_lock.rb:150:in `exclusive' 
    from /var/lib/gems/2.3.0/gems/activesupport-5.0.1/lib/active_support/dependencies/interlock.rb:11:in `loading' 
    from /var/lib/gems/2.3.0/gems/spree_core-3.2.0.rc3/lib/spree/core/engine.rb:39:in `block in <class:Engine>' 
    from /var/lib/gems/2.3.0/gems/railties-5.0.1/lib/rails/initializable.rb:30:in `instance_exec' 
    from /var/lib/gems/2.3.0/gems/railties-5.0.1/lib/rails/initializable.rb:30:in `run' 
    from /var/lib/gems/2.3.0/gems/railties-5.0.1/lib/rails/initializable.rb:55:in `block in run_initializers' 
    from /usr/lib/ruby/2.3.0/tsort.rb:228:in `block in tsort_each' 
    from /usr/lib/ruby/2.3.0/tsort.rb:350:in `block (2 levels) in each_strongly_connected_component' 
    from /usr/lib/ruby/2.3.0/tsort.rb:422:in `block (2 levels) in each_strongly_connected_component_from' 
    from /usr/lib/ruby/2.3.0/tsort.rb:422:in `block (2 levels) in each_strongly_connected_component_from' 
    from /usr/lib/ruby/2.3.0/tsort.rb:422:in `block (2 levels) in each_strongly_connected_component_from' 
    from /usr/lib/ruby/2.3.0/tsort.rb:422:in `block (2 levels) in each_strongly_connected_component_from' 
    from /usr/lib/ruby/2.3.0/tsort.rb:422:in `block (2 levels) in each_strongly_connected_component_from' 
    from /usr/lib/ruby/2.3.0/tsort.rb:422:in `block (2 levels) in each_strongly_connected_component_from' 
    from /usr/lib/ruby/2.3.0/tsort.rb:422:in `block (2 levels) in each_strongly_connected_component_from' 
    from /usr/lib/ruby/2.3.0/tsort.rb:422:in `block (2 levels) in each_strongly_connected_component_from' 
    from /usr/lib/ruby/2.3.0/tsort.rb:431:in `each_strongly_connected_component_from' 
    from /usr/lib/ruby/2.3.0/tsort.rb:421:in `block in each_strongly_connected_component_from' 
    from /var/lib/gems/2.3.0/gems/railties-5.0.1/lib/rails/initializable.rb:44:in `each' 
    from /var/lib/gems/2.3.0/gems/railties-5.0.1/lib/rails/initializable.rb:44:in `tsort_each_child' 
    from /usr/lib/ruby/2.3.0/tsort.rb:415:in `call' 
    from /usr/lib/ruby/2.3.0/tsort.rb:415:in `each_strongly_connected_component_from' 
    from /usr/lib/ruby/2.3.0/tsort.rb:421:in `block in each_strongly_connected_component_from' 
    from /var/lib/gems/2.3.0/gems/railties-5.0.1/lib/rails/initializable.rb:44:in `each' 
    from /var/lib/gems/2.3.0/gems/railties-5.0.1/lib/rails/initializable.rb:44:in `tsort_each_child' 
    from /usr/lib/ruby/2.3.0/tsort.rb:415:in `call' 
    from /usr/lib/ruby/2.3.0/tsort.rb:415:in `each_strongly_connected_component_from' 
    from /usr/lib/ruby/2.3.0/tsort.rb:421:in `block in each_strongly_connected_component_from' 
    from /var/lib/gems/2.3.0/gems/railties-5.0.1/lib/rails/initializable.rb:44:in `each' 
    from /var/lib/gems/2.3.0/gems/railties-5.0.1/lib/rails/initializable.rb:44:in `tsort_each_child' 
    from /usr/lib/ruby/2.3.0/tsort.rb:415:in `call' 
    from /usr/lib/ruby/2.3.0/tsort.rb:415:in `each_strongly_connected_component_from' 
    from /usr/lib/ruby/2.3.0/tsort.rb:421:in `block in each_strongly_connected_component_from' 
    from /var/lib/gems/2.3.0/gems/railties-5.0.1/lib/rails/initializable.rb:44:in `each' 
    from /var/lib/gems/2.3.0/gems/railties-5.0.1/lib/rails/initializable.rb:44:in `tsort_each_child' 
    from /usr/lib/ruby/2.3.0/tsort.rb:415:in `call' 
    from /usr/lib/ruby/2.3.0/tsort.rb:415:in `each_strongly_connected_component_from' 
    from /usr/lib/ruby/2.3.0/tsort.rb:421:in `block in each_strongly_connected_component_from' 
    from /var/lib/gems/2.3.0/gems/railties-5.0.1/lib/rails/initializable.rb:44:in `each' 
    from /var/lib/gems/2.3.0/gems/railties-5.0.1/lib/rails/initializable.rb:44:in `tsort_each_child' 
    from /usr/lib/ruby/2.3.0/tsort.rb:415:in `call' 
    from /usr/lib/ruby/2.3.0/tsort.rb:415:in `each_strongly_connected_component_from' 
    from /usr/lib/ruby/2.3.0/tsort.rb:421:in `block in each_strongly_connected_component_from' 
    from /var/lib/gems/2.3.0/gems/railties-5.0.1/lib/rails/initializable.rb:44:in `each' 
    from /var/lib/gems/2.3.0/gems/railties-5.0.1/lib/rails/initializable.rb:44:in `tsort_each_child' 
    from /usr/lib/ruby/2.3.0/tsort.rb:415:in `call' 
    from /usr/lib/ruby/2.3.0/tsort.rb:415:in `each_strongly_connected_component_from' 
    from /usr/lib/ruby/2.3.0/tsort.rb:421:in `block in each_strongly_connected_component_from' 
    from /var/lib/gems/2.3.0/gems/railties-5.0.1/lib/rails/initializable.rb:44:in `each' 
    from /var/lib/gems/2.3.0/gems/railties-5.0.1/lib/rails/initializable.rb:44:in `tsort_each_child' 
    from /usr/lib/ruby/2.3.0/tsort.rb:415:in `call' 
    from /usr/lib/ruby/2.3.0/tsort.rb:415:in `each_strongly_connected_component_from' 
    from /usr/lib/ruby/2.3.0/tsort.rb:421:in `block in each_strongly_connected_component_from' 
    from /var/lib/gems/2.3.0/gems/railties-5.0.1/lib/rails/initializable.rb:44:in `each' 
    from /var/lib/gems/2.3.0/gems/railties-5.0.1/lib/rails/initializable.rb:44:in `tsort_each_child' 
    from /usr/lib/ruby/2.3.0/tsort.rb:415:in `call' 
    from /usr/lib/ruby/2.3.0/tsort.rb:415:in `each_strongly_connected_component_from' 
    from /usr/lib/ruby/2.3.0/tsort.rb:349:in `block in each_strongly_connected_component' 
    from /usr/lib/ruby/2.3.0/tsort.rb:347:in `each' 
    from /usr/lib/ruby/2.3.0/tsort.rb:347:in `call' 
    from /usr/lib/ruby/2.3.0/tsort.rb:347:in `each_strongly_connected_component' 
    from /usr/lib/ruby/2.3.0/tsort.rb:226:in `tsort_each' 
    from /usr/lib/ruby/2.3.0/tsort.rb:205:in `tsort_each' 
    from /var/lib/gems/2.3.0/gems/railties-5.0.1/lib/rails/initializable.rb:54:in `run_initializers' 
    from /var/lib/gems/2.3.0/gems/railties-5.0.1/lib/rails/application.rb:352:in `initialize!' 
    from /home/aaron/kmd/config/environment.rb:5:in `<top (required)>' 
    from /var/lib/gems/2.3.0/gems/polyglot-0.3.5/lib/polyglot.rb:65:in `require' 
    from /var/lib/gems/2.3.0/gems/polyglot-0.3.5/lib/polyglot.rb:65:in `require' 
    from /home/aaron/kmd/config.ru:3:in `block in <main>' 
    from /var/lib/gems/2.3.0/gems/rack-2.0.1/lib/rack/builder.rb:55:in `instance_eval' 
    from /var/lib/gems/2.3.0/gems/rack-2.0.1/lib/rack/builder.rb:55:in `initialize' 
    from /home/aaron/kmd/config.ru:in `new' 
    from /home/aaron/kmd/config.ru:in `<main>' 
    from /var/lib/gems/2.3.0/gems/rack-2.0.1/lib/rack/builder.rb:49:in `eval' 
    from /var/lib/gems/2.3.0/gems/rack-2.0.1/lib/rack/builder.rb:49:in `new_from_string' 
    from /var/lib/gems/2.3.0/gems/rack-2.0.1/lib/rack/builder.rb:40:in `parse_file' 
    from /var/lib/gems/2.3.0/gems/rack-2.0.1/lib/rack/server.rb:318:in `build_app_and_options_from_config' 
    from /var/lib/gems/2.3.0/gems/rack-2.0.1/lib/rack/server.rb:218:in `app' 
    from /var/lib/gems/2.3.0/gems/railties-5.0.1/lib/rails/commands/server.rb:59:in `app' 
    from /var/lib/gems/2.3.0/gems/rack-2.0.1/lib/rack/server.rb:353:in `wrapped_app' 
    from /var/lib/gems/2.3.0/gems/railties-5.0.1/lib/rails/commands/server.rb:124:in `log_to_stdout' 
    from /var/lib/gems/2.3.0/gems/railties-5.0.1/lib/rails/commands/server.rb:77:in `start' 
    from /var/lib/gems/2.3.0/gems/railties-5.0.1/lib/rails/commands/commands_tasks.rb:90:in `block in server' 
    from /var/lib/gems/2.3.0/gems/railties-5.0.1/lib/rails/commands/commands_tasks.rb:85:in `tap' 
    from /var/lib/gems/2.3.0/gems/railties-5.0.1/lib/rails/commands/commands_tasks.rb:85:in `server' 
    from /var/lib/gems/2.3.0/gems/railties-5.0.1/lib/rails/commands/commands_tasks.rb:49:in `run_command!' 
    from /var/lib/gems/2.3.0/gems/railties-5.0.1/lib/rails/commands.rb:18:in `<top (required)>' 
    from bin/rails:4:in `require' 
    from bin/rails:4:in `<main>' 

Answer 1

Rails 5 Projekte sollen ApplicationRecord in ihre Modelle haben, die für alle Modelle als Basisklasse verwendet wird.

Es scheint, Sie verwenden Schienen 5.0.1. Spree ist Juwel, die Ihre aktuelle Schienen App erweitern; Alle Modelle erstrecken sich von Ihrem ApplicationRecord.

Es sollte eine Datei namens app/models/application_record.rb in Ihrer Rails-Anwendung sein. Wenn nicht, erstellen Sie es mit folgendem Inhalt.

class ApplicationRecord < ActiveRecord::Base 
    self.abstract_class = true 
end