可能的鏈輪 - 導軌寶石問題？

Question

我剛剛創建了一個新的Vagrant框，以便能夠開發我的Rails應用程序。這個盒子是全新的，並且已經安裝了Ruby，MySQL等來開發。

我已經安裝了所有的寶石等等，但是當我嘗試啓動應用程序，我得到如下：

vagrant@neiltongesite:/vagrant/source$ bundle exec foreman start 
17:45:02 rails.1 | started with pid 5910 
17:45:05 rails.1 | /home/vagrant/.gem/ruby/2.2.7/gems/sprockets-rails-3.2.0/lib/sprockets/railtie.rb:108:in `block in <class:Railtie>': undefined method `+' for false:FalseClass (NoMethodError) 
17:45:05 rails.1 | from /home/vagrant/.gem/ruby/2.2.7/gems/railties-4.2.5.1/lib/rails/initializable.rb:30:in `instance_exec' 
17:45:05 rails.1 | from /home/vagrant/.gem/ruby/2.2.7/gems/railties-4.2.5.1/lib/rails/initializable.rb:30:in `run' 
17:45:05 rails.1 | from /home/vagrant/.gem/ruby/2.2.7/gems/railties-4.2.5.1/lib/rails/initializable.rb:55:in `block in run_initializers' 
17:45:05 rails.1 | from /opt/rubies/ruby-2.2.7/lib/ruby/2.2.0/tsort.rb:226:in `block in tsort_each' 
17:45:05 rails.1 | from /opt/rubies/ruby-2.2.7/lib/ruby/2.2.0/tsort.rb:348:in `block (2 levels) in each_strongly_connected_component' 
17:45:05 rails.1 | from /opt/rubies/ruby-2.2.7/lib/ruby/2.2.0/tsort.rb:429:in `each_strongly_connected_component_from' 
17:45:05 rails.1 | from /opt/rubies/ruby-2.2.7/lib/ruby/2.2.0/tsort.rb:347:in `block in each_strongly_connected_component' 
17:45:05 rails.1 | from /opt/rubies/ruby-2.2.7/lib/ruby/2.2.0/tsort.rb:345:in `each' 
17:45:05 rails.1 | from /opt/rubies/ruby-2.2.7/lib/ruby/2.2.0/tsort.rb:345:in `call' 
17:45:05 rails.1 | from /opt/rubies/ruby-2.2.7/lib/ruby/2.2.0/tsort.rb:345:in `each_strongly_connected_component' 
17:45:05 rails.1 | from /opt/rubies/ruby-2.2.7/lib/ruby/2.2.0/tsort.rb:224:in `tsort_each' 
17:45:05 rails.1 | from /opt/rubies/ruby-2.2.7/lib/ruby/2.2.0/tsort.rb:203:in `tsort_each' 
17:45:05 rails.1 | from /home/vagrant/.gem/ruby/2.2.7/gems/railties-4.2.5.1/lib/rails/initializable.rb:54:in `run_initializers' 
17:45:05 rails.1 | from /home/vagrant/.gem/ruby/2.2.7/gems/railties-4.2.5.1/lib/rails/application.rb:352:in `initialize!' 
17:45:05 rails.1 | from /home/vagrant/.gem/ruby/2.2.7/gems/railties-4.2.5.1/lib/rails/railtie.rb:194:in `public_send' 
17:45:05 rails.1 | from /home/vagrant/.gem/ruby/2.2.7/gems/railties-4.2.5.1/lib/rails/railtie.rb:194:in `method_missing' 
17:45:05 rails.1 | from /vagrant/source/config/environment.rb:5:in `<top (required)>' 
17:45:05 rails.1 | from /home/vagrant/.gem/ruby/2.2.7/gems/activesupport-4.2.5.1/lib/active_support/dependencies.rb:274:in `require' 
17:45:05 rails.1 | from /home/vagrant/.gem/ruby/2.2.7/gems/activesupport-4.2.5.1/lib/active_support/dependencies.rb:274:in `block in require' 
17:45:05 rails.1 | from /home/vagrant/.gem/ruby/2.2.7/gems/activesupport-4.2.5.1/lib/active_support/dependencies.rb:240:in `load_dependency' 
17:45:05 rails.1 | from /home/vagrant/.gem/ruby/2.2.7/gems/activesupport-4.2.5.1/lib/active_support/dependencies.rb:274:in `require' 
17:45:05 rails.1 | from /vagrant/source/config.ru:3:in `block in <main>' 
17:45:05 rails.1 | from /home/vagrant/.gem/ruby/2.2.7/gems/rack-1.6.5/lib/rack/builder.rb:55:in `instance_eval' 
17:45:05 rails.1 | from /home/vagrant/.gem/ruby/2.2.7/gems/rack-1.6.5/lib/rack/builder.rb:55:in `initialize' 
17:45:05 rails.1 | from /vagrant/source/config.ru:in `new' 
17:45:05 rails.1 | from /vagrant/source/config.ru:in `<main>' 
17:45:05 rails.1 | from /home/vagrant/.gem/ruby/2.2.7/gems/rack-1.6.5/lib/rack/builder.rb:49:in `eval' 
17:45:05 rails.1 | from /home/vagrant/.gem/ruby/2.2.7/gems/rack-1.6.5/lib/rack/builder.rb:49:in `new_from_string' 
17:45:05 rails.1 | from /home/vagrant/.gem/ruby/2.2.7/gems/rack-1.6.5/lib/rack/builder.rb:40:in `parse_file' 
17:45:05 rails.1 | from /home/vagrant/.gem/ruby/2.2.7/gems/rack-1.6.5/lib/rack/server.rb:299:in `build_app_and_options_from_config' 
17:45:05 rails.1 | from /home/vagrant/.gem/ruby/2.2.7/gems/rack-1.6.5/lib/rack/server.rb:208:in `app' 
17:45:05 rails.1 | from /home/vagrant/.gem/ruby/2.2.7/gems/railties-4.2.5.1/lib/rails/commands/server.rb:61:in `app' 
17:45:05 rails.1 | from /home/vagrant/.gem/ruby/2.2.7/gems/rack-1.6.5/lib/rack/server.rb:336:in `wrapped_app' 
17:45:05 rails.1 | from /home/vagrant/.gem/ruby/2.2.7/gems/railties-4.2.5.1/lib/rails/commands/server.rb:139:in `log_to_stdout' 
17:45:05 rails.1 | from /home/vagrant/.gem/ruby/2.2.7/gems/railties-4.2.5.1/lib/rails/commands/server.rb:78:in `start' 
17:45:05 rails.1 | from /home/vagrant/.gem/ruby/2.2.7/gems/railties-4.2.5.1/lib/rails/commands/commands_tasks.rb:80:in `block in server' 
17:45:05 rails.1 | from /home/vagrant/.gem/ruby/2.2.7/gems/railties-4.2.5.1/lib/rails/commands/commands_tasks.rb:75:in `tap' 
17:45:05 rails.1 | from /home/vagrant/.gem/ruby/2.2.7/gems/railties-4.2.5.1/lib/rails/commands/commands_tasks.rb:75:in `server' 
17:45:05 rails.1 | from /home/vagrant/.gem/ruby/2.2.7/gems/railties-4.2.5.1/lib/rails/commands/commands_tasks.rb:39:in `run_command!' 
17:45:05 rails.1 | from /home/vagrant/.gem/ruby/2.2.7/gems/railties-4.2.5.1/lib/rails/commands.rb:17:in `<top (required)>' 
17:45:05 rails.1 | from bin/rails:4:in `require' 
17:45:05 rails.1 | from bin/rails:4:in `<main>' 
17:45:05 rails.1 | => Booting Puma 
17:45:05 rails.1 | => Rails 4.2.5.1 application starting in development on http://0.0.0.0:3000 
17:45:05 rails.1 | => Run `rails server -h` for more startup options 
17:45:05 rails.1 | => Ctrl-C to shutdown server 
17:45:05 rails.1 | Exiting 
17:45:05 rails.1 | exited with code 1 
17:45:05 system | sending SIGTERM to all processes 

我已經看了，但似乎無法找出是什麼原因造成的。

任何人都能指出我正確的方向嗎？

Answer 1

拋出異常的this line，所以我想你有你的配置文件放在以下幾點：

config.assets.precompile = false 

此配置設置應該定義要資產的陣列中進行預編譯，它不應該設置爲false。有關更多信息，請參閱Rails guides。

爲了檢驗這一假設，我配置了一個測試的Rails 5項目，上述行，得到了相同的異常：

.../gems/sprockets-rails-3.2.0/lib/sprockets/railtie.rb:108:in `block in <class:Railtie>': undefined method `+' for false:FalseClass (NoMethodError)