Dağıtım, bir hatayla başarısız oldu: # <NoMethodError: main için tanımlanmamış yöntem "on": Object>

Question

Ben raylar uygulamasını dijital okyanusa dağıtmak için gidiyorum.
Bu https://gorails.com/deploy/ubuntu/14.04
için eğiticiyi takip ettim Ve sonra dağıtmak için yerel komut isteminde komutu çalıştırıyorum.

# cap production deploy 

Komutu çalıştırdıktan sonra, aşağıdaki hatayı aldım.

/Users/llvc/.rbenv/versions/2.2.3/lib/ruby/gems/2.2.0/gems/capistrano-3.1.0/lib/capistrano/i18n.rb:4: warning: duplicated key at line 6 ignored: :starting 
    ** Invoke production (first_time) 
    ** Execute production 
    ** Invoke load:defaults (first_time) 
    ** Execute load:defaults 
    ** Invoke bundler:map_bins (first_time) 
    ** Execute bundler:map_bins 
    ** Invoke deploy:set_rails_env (first_time) 
    ** Execute deploy:set_rails_env 
    ** Invoke deploy:set_linked_dirs (first_time) 
    ** Execute deploy:set_linked_dirs 
    ** Invoke deploy:set_rails_env 
    ** Invoke deploy (first_time) 
    ** Execute deploy 
    ** Invoke deploy:starting (first_time) 
    ** Execute deploy:starting 
    ** Invoke deploy:check (first_time) 
    ** Execute deploy:check 
    ** Invoke git:check (first_time) 
    ** Invoke git:wrapper (first_time) 
    ** Execute git:wrapper 
    cap aborted! 
    NoMethodError: undefined method `on' for main:Object 
    /Users/llvc/.rbenv/versions/2.2.3/lib/ruby/gems/2.2.0/gems/capistrano-3.1.0/lib/capistrano/tasks/git.rake:16:in `block (2 levels) in <top (required)>' 
    /Users/llvc/.rbenv/versions/2.2.3/lib/ruby/gems/2.2.0/gems/rake-11.1.1/lib/rake/task.rb:248:in `call' 
    /Users/llvc/.rbenv/versions/2.2.3/lib/ruby/gems/2.2.0/gems/rake-11.1.1/lib/rake/task.rb:248:in `block in execute' 
    /Users/llvc/.rbenv/versions/2.2.3/lib/ruby/gems/2.2.0/gems/rake-11.1.1/lib/rake/task.rb:243:in `each' 
    /Users/llvc/.rbenv/versions/2.2.3/lib/ruby/gems/2.2.0/gems/rake-11.1.1/lib/rake/task.rb:243:in `execute' 
    /Users/llvc/.rbenv/versions/2.2.3/lib/ruby/gems/2.2.0/gems/rake-11.1.1/lib/rake/task.rb:187:in `block in invoke_with_call_chain' 
    /Users/llvc/.rbenv/versions/2.2.3/lib/ruby/2.2.0/monitor.rb:211:in `mon_synchronize' 
    /Users/llvc/.rbenv/versions/2.2.3/lib/ruby/gems/2.2.0/gems/rake-11.1.1/lib/rake/task.rb:180:in `invoke_with_call_chain' 
    /Users/llvc/.rbenv/versions/2.2.3/lib/ruby/gems/2.2.0/gems/rake-11.1.1/lib/rake/task.rb:209:in `block in invoke_prerequisites' 
    /Users/llvc/.rbenv/versions/2.2.3/lib/ruby/gems/2.2.0/gems/rake-11.1.1/lib/rake/task.rb:207:in `each' 
    /Users/llvc/.rbenv/versions/2.2.3/lib/ruby/gems/2.2.0/gems/rake-11.1.1/lib/rake/task.rb:207:in `invoke_prerequisites' 
    /Users/llvc/.rbenv/versions/2.2.3/lib/ruby/gems/2.2.0/gems/rake-11.1.1/lib/rake/task.rb:186:in `block in invoke_with_call_chain' 
    /Users/llvc/.rbenv/versions/2.2.3/lib/ruby/2.2.0/monitor.rb:211:in `mon_synchronize' 
    /Users/llvc/.rbenv/versions/2.2.3/lib/ruby/gems/2.2.0/gems/rake-11.1.1/lib/rake/task.rb:180:in `invoke_with_call_chain' 
    /Users/llvc/.rbenv/versions/2.2.3/lib/ruby/gems/2.2.0/gems/rake-11.1.1/lib/rake/task.rb:173:in `invoke' 
    /Users/llvc/.rbenv/versions/2.2.3/lib/ruby/gems/2.2.0/gems/capistrano-3.1.0/lib/capistrano/dsl.rb:14:in `invoke' 
    /Users/llvc/.rbenv/versions/2.2.3/lib/ruby/gems/2.2.0/gems/capistrano-3.1.0/lib/capistrano/tasks/deploy.rake:34:in `block (2 levels) in <top (required)>' 
    /Users/llvc/.rbenv/versions/2.2.3/lib/ruby/gems/2.2.0/gems/rake-11.1.1/lib/rake/task.rb:248:in `call' 
    /Users/llvc/.rbenv/versions/2.2.3/lib/ruby/gems/2.2.0/gems/rake-11.1.1/lib/rake/task.rb:248:in `block in execute' 
    /Users/llvc/.rbenv/versions/2.2.3/lib/ruby/gems/2.2.0/gems/rake-11.1.1/lib/rake/task.rb:243:in `each' 
    /Users/llvc/.rbenv/versions/2.2.3/lib/ruby/gems/2.2.0/gems/rake-11.1.1/lib/rake/task.rb:243:in `execute' 
    /Users/llvc/.rbenv/versions/2.2.3/lib/ruby/gems/2.2.0/gems/rake-11.1.1/lib/rake/task.rb:187:in `block in invoke_with_call_chain' 
    /Users/llvc/.rbenv/versions/2.2.3/lib/ruby/2.2.0/monitor.rb:211:in `mon_synchronize' 
    /Users/llvc/.rbenv/versions/2.2.3/lib/ruby/gems/2.2.0/gems/rake-11.1.1/lib/rake/task.rb:180:in `invoke_with_call_chain' 
    /Users/llvc/.rbenv/versions/2.2.3/lib/ruby/gems/2.2.0/gems/rake-11.1.1/lib/rake/task.rb:173:in `invoke' 
    /Users/llvc/.rbenv/versions/2.2.3/lib/ruby/gems/2.2.0/gems/capistrano-3.1.0/lib/capistrano/dsl.rb:14:in `invoke' 
    /Users/llvc/.rbenv/versions/2.2.3/lib/ruby/gems/2.2.0/gems/capistrano-3.1.0/lib/capistrano/tasks/deploy.rake:4:in `block (2 levels) in <top (required)>' 
    /Users/llvc/.rbenv/versions/2.2.3/lib/ruby/gems/2.2.0/gems/rake-11.1.1/lib/rake/task.rb:248:in `call' 
    /Users/llvc/.rbenv/versions/2.2.3/lib/ruby/gems/2.2.0/gems/rake-11.1.1/lib/rake/task.rb:248:in `block in execute' 
    /Users/llvc/.rbenv/versions/2.2.3/lib/ruby/gems/2.2.0/gems/rake-11.1.1/lib/rake/task.rb:243:in `each' 
    /Users/llvc/.rbenv/versions/2.2.3/lib/ruby/gems/2.2.0/gems/rake-11.1.1/lib/rake/task.rb:243:in `execute' 
    /Users/llvc/.rbenv/versions/2.2.3/lib/ruby/gems/2.2.0/gems/rake-11.1.1/lib/rake/task.rb:187:in `block in invoke_with_call_chain' 
    /Users/llvc/.rbenv/versions/2.2.3/lib/ruby/2.2.0/monitor.rb:211:in `mon_synchronize' 
    /Users/llvc/.rbenv/versions/2.2.3/lib/ruby/gems/2.2.0/gems/rake-11.1.1/lib/rake/task.rb:180:in `invoke_with_call_chain' 
    /Users/llvc/.rbenv/versions/2.2.3/lib/ruby/gems/2.2.0/gems/rake-11.1.1/lib/rake/task.rb:173:in `invoke' 
    /Users/llvc/.rbenv/versions/2.2.3/lib/ruby/gems/2.2.0/gems/capistrano-3.1.0/lib/capistrano/dsl.rb:14:in `invoke' 
    /Users/llvc/.rbenv/versions/2.2.3/lib/ruby/gems/2.2.0/gems/capistrano-3.1.0/lib/capistrano/tasks/framework.rake:65:in `block (2 levels) in <top (required)>' 
    /Users/llvc/.rbenv/versions/2.2.3/lib/ruby/gems/2.2.0/gems/capistrano-3.1.0/lib/capistrano/tasks/framework.rake:64:in `each' 
    /Users/llvc/.rbenv/versions/2.2.3/lib/ruby/gems/2.2.0/gems/capistrano-3.1.0/lib/capistrano/tasks/framework.rake:64:in `block in <top (required)>' 
    /Users/llvc/.rbenv/versions/2.2.3/lib/ruby/gems/2.2.0/gems/rake-11.1.1/lib/rake/task.rb:248:in `call' 
    /Users/llvc/.rbenv/versions/2.2.3/lib/ruby/gems/2.2.0/gems/rake-11.1.1/lib/rake/task.rb:248:in `block in execute' 
    /Users/llvc/.rbenv/versions/2.2.3/lib/ruby/gems/2.2.0/gems/rake-11.1.1/lib/rake/task.rb:243:in `each' 
    /Users/llvc/.rbenv/versions/2.2.3/lib/ruby/gems/2.2.0/gems/rake-11.1.1/lib/rake/task.rb:243:in `execute' 
    /Users/llvc/.rbenv/versions/2.2.3/lib/ruby/gems/2.2.0/gems/rake-11.1.1/lib/rake/task.rb:187:in `block in invoke_with_call_chain' 
    /Users/llvc/.rbenv/versions/2.2.3/lib/ruby/2.2.0/monitor.rb:211:in `mon_synchronize' 
    /Users/llvc/.rbenv/versions/2.2.3/lib/ruby/gems/2.2.0/gems/rake-11.1.1/lib/rake/task.rb:180:in `invoke_with_call_chain' 
    /Users/llvc/.rbenv/versions/2.2.3/lib/ruby/gems/2.2.0/gems/rake-11.1.1/lib/rake/task.rb:173:in `invoke' 
    /Users/llvc/.rbenv/versions/2.2.3/lib/ruby/gems/2.2.0/gems/rake-11.1.1/lib/rake/application.rb:150:in `invoke_task' 
    /Users/llvc/.rbenv/versions/2.2.3/lib/ruby/gems/2.2.0/gems/rake-11.1.1/lib/rake/application.rb:106:in `block (2 levels) in top_level' 
    /Users/llvc/.rbenv/versions/2.2.3/lib/ruby/gems/2.2.0/gems/rake-11.1.1/lib/rake/application.rb:106:in `each' 
    /Users/llvc/.rbenv/versions/2.2.3/lib/ruby/gems/2.2.0/gems/rake-11.1.1/lib/rake/application.rb:106:in `block in top_level' 
    /Users/llvc/.rbenv/versions/2.2.3/lib/ruby/gems/2.2.0/gems/rake-11.1.1/lib/rake/application.rb:115:in `run_with_threads' 
    /Users/llvc/.rbenv/versions/2.2.3/lib/ruby/gems/2.2.0/gems/rake-11.1.1/lib/rake/application.rb:100:in `top_level' 
    /Users/llvc/.rbenv/versions/2.2.3/lib/ruby/gems/2.2.0/gems/rake-11.1.1/lib/rake/application.rb:78:in `block in run' 
    /Users/llvc/.rbenv/versions/2.2.3/lib/ruby/gems/2.2.0/gems/rake-11.1.1/lib/rake/application.rb:176:in `standard_exception_handling' 
    /Users/llvc/.rbenv/versions/2.2.3/lib/ruby/gems/2.2.0/gems/rake-11.1.1/lib/rake/application.rb:75:in `run' 
    /Users/llvc/.rbenv/versions/2.2.3/lib/ruby/gems/2.2.0/gems/capistrano-3.1.0/lib/capistrano/application.rb:15:in `run' 
    /Users/llvc/.rbenv/versions/2.2.3/lib/ruby/gems/2.2.0/gems/capistrano-3.1.0/bin/cap:3:in `<top (required)>' 
    /Users/llvc/.rbenv/versions/2.2.3/bin/cap:23:in `load' 
    /Users/llvc/.rbenv/versions/2.2.3/bin/cap:23:in `<main>' 
    Tasks: TOP => git:check => git:wrapper 
    The deploy has failed with an error: #<NoMethodError: undefined method `on' for main:Object> 
    ** Invoke deploy:failed (first_time) 
    ** Execute deploy:failed 

Stackoverflow'dan benzer sorunları buldum. NoMethodError: undefined method `on' for main:Object
Ancak çözüm bana yardımcı olamazdı. Uzmanlardan ek yardıma ihtiyacım var. Teşekkürler. Jin

Answer 1

Adımları izledikten sonra bunu çözebilirim.
1 .. öğreticiyi doğru şekilde uyguladığınızdan emin olun.
2 .. Gemfile içinde Capestrano ilgili sürümlerini kaldırmak

Answer 2

değişimi:

gem 'capistrano', '~> 3.1.0' 
gem 'capistrano-bundler', '~> 1.1.2' 
gem 'capistrano-rails', '~> 1.1.1' 

için: /config/deploy.rb içinde var

gem 'capistrano',   '~>3.5.0' 
gem 'capistrano-bundler', '~> 1.1.3' 
gem 'capistrano-rails',  '~> 1.1.7' 

eğer:

lock '3.1.0' 

şunun için değiştirin:

lock '3.5.0' 

ve çalıştırın:

bundle update 

bundle install