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我是新來的紅寶石環境。我配置了紅寶石，當我啓動服務器時，我遇到了一系列錯誤。請有人請給我一個手。我有問題啓動服務器
2.3.1 :001 > rails s
NameError: undefined local variable or method `s' for main:Object
from (irb):1
from /Users/User/.rvm/gems/ruby-2.3.1/gems/railties-4.2.6/lib/rails/commands/console.rb:110:in `start'
from /Users/User/.rvm/gems/ruby-2.3.1/gems/railties-4.2.6/lib/rails/commands/console.rb:9:in `start'
from /Users/User/.rvm/gems/ruby-2.3.1/gems/railties-4.2.6/lib/rails/commands/commands_tasks.rb:68:in `console'
from /Users/User/.rvm/gems/ruby-2.3.1/gems/railties-4.2.6/lib/rails/commands/commands_tasks.rb:39:in `run_command!'
from /Users/User/.rvm/gems/ruby-2.3.1/gems/railties-4.2.6/lib/rails/commands.rb:17:in `<top (required)>'
from /Users/User/.rvm/gems/ruby-2.3.1/gems/activesupport-4.2.6/lib/active_support/dependencies.rb:274:in `require'
from /Users/User/.rvm/gems/ruby-2.3.1/gems/activesupport-4.2.6/lib/active_support/dependencies.rb:274:in `block in require'
from /Users/User/.rvm/gems/ruby-2.3.1/gems/activesupport-4.2.6/lib/active_support/dependencies.rb:240:in `load_dependency'
from /Users/User/.rvm/gems/ruby-2.3.1/gems/activesupport-4.2.6/lib/active_support/dependencies.rb:274:in `require'
from /Users/User/workspace/dineconnect-backend/bin/rails:9:in `<top (required)>'
from /Users/User/.rvm/gems/ruby-2.3.1/gems/activesupport-4.2.6/lib/active_support/dependencies.rb:268:in `load'
from /Users/User/.rvm/gems/ruby-2.3.1/gems/activesupport-4.2.6/lib/active_support/dependencies.rb:268:in `block in load'
from /Users/User/.rvm/gems/ruby-2.3.1/gems/activesupport-4.2.6/lib/active_support/dependencies.rb:240:in `load_dependency'
from /Users/User/.rvm/gems/ruby-2.3.1/gems/activesupport-4.2.6/lib/active_support/dependencies.rb:268:in `load'
from /Users/User/.rvm/gems/ruby-2.3.1/gems/spring-2.0.0/lib/spring/commands/rails.rb:6:in `call'
from /Users/User/.rvm/gems/ruby-2.3.1/gems/spring-2.0.0/lib/spring/command_wrapper.rb:38:in `call'
from /Users/User/.rvm/gems/ruby-2.3.1/gems/spring-2.0.0/lib/spring/application.rb:191:in `block in serve'
from /Users/User/.rvm/gems/ruby-2.3.1/gems/spring-2.0.0/lib/spring/application.rb:161:in `fork'
from /Users/User/.rvm/gems/ruby-2.3.1/gems/spring-2.0.0/lib/spring/application.rb:161:in `serve'
from /Users/User/.rvm/gems/ruby-2.3.1/gems/spring-2.0.0/lib/spring/application.rb:131:in `block in run'
from /Users/User/.rvm/gems/ruby-2.3.1/gems/spring-2.0.0/lib/spring/application.rb:125:in `loop'
from /Users/User/.rvm/gems/ruby-2.3.1/gems/spring-2.0.0/lib/spring/application.rb:125:in `run'
from /Users/User/.rvm/gems/ruby-2.3.1/gems/spring-2.0.0/lib/spring/application/boot.rb:19:in `<top (required)>'
from /Users/User/.rvm/rubies/ruby-2.3.1/lib/ruby/2.3.0/rubygems/core_ext/kernel_require.rb:55:in `require'
from /Users/User/.rvm/rubies/ruby-2.3.1/lib/ruby/2.3.0/rubygems/core_ext/kernel_require.rb:55:in `require'
from -e:1:in `<main>'