尝试安装rspec时的主动支持问题 - nil的未定义方法'to_sym'：NilClass

Question

我正在尝试安装RSpec来对我没写的应用程序进行一些测试。我放了

  

gem“rspec-rails”，“〜＆gt; 2.8”

在我的gemfile中运行bundle install。这很好。直到我跑

  

rails生成rspec：install

我收到此错误：

  

/Users/anthonyto/.rvm/gems/ruby-1.9.3-p194/gems/activesupport-3.0.20/lib/active_support/whiny_nil.rb:48:in   method_missing': undefined method to_sym'代表nil：NilClass   （NoMethodError）来自   /Users/anthonyto/.rvm/gems/ruby-1.9.3-p194/gems/actionpack-3.0.20/lib/action_dispatch/routing/mapper.rb:1309:in   来自action_path' from /Users/anthonyto/.rvm/gems/ruby-1.9.3-p194/gems/actionpack-3.0.20/lib/action_dispatch/routing/mapper.rb:1304:in path_for_action'   /Users/anthonyto/.rvm/gems/ruby-1.9.3-p194/gems/actionpack-3.0.20/lib/action_dispatch/routing/mapper.rb:1159:in   match' from /Users/anthonyto/.rvm/gems/ruby-1.9.3-p194/gems/actionpack-3.0.20/lib/action_dispatch/routing/mapper.rb:1358:in 匹配来自   /Users/anthonyto/.rvm/gems/ruby-1.9.3-p194/gems/actionpack-3.0.20/lib/action_dispatch/routing/mapper.rb:394:in   map_method' from /Users/anthonyto/.rvm/gems/ruby-1.9.3-p194/gems/actionpack-3.0.20/lib/action_dispatch/routing/mapper.rb:323:in 来自   /Users/anthonyto/ActiveNetwork/active-trainer/config/routes.rb:447:in   来自控制器的block (4 levels) in <top (required)>' from /Users/anthonyto/.rvm/gems/ruby-1.9.3-p194/gems/actionpack-3.0.20/lib/action_dispatch/routing/mapper.rb:565:in 阻止   /Users/anthonyto/.rvm/gems/ruby-1.9.3-p194/gems/actionpack-3.0.20/lib/action_dispatch/routing/mapper.rb:546:in   来自scope' from /Users/anthonyto/.rvm/gems/ruby-1.9.3-p194/gems/actionpack-3.0.20/lib/action_dispatch/routing/mapper.rb:565:in 控制器'   /Users/anthonyto/ActiveNetwork/active-trainer/config/routes.rb:446:in   名称空间中的block (3 levels) in <top (required)>' from /Users/anthonyto/.rvm/gems/ruby-1.9.3-p194/gems/actionpack-3.0.20/lib/action_dispatch/routing/mapper.rb:624:in 阻止来自   /Users/anthonyto/.rvm/gems/ruby-1.9.3-p194/gems/actionpack-3.0.20/lib/action_dispatch/routing/mapper.rb:546:in   scope' from /Users/anthonyto/.rvm/gems/ruby-1.9.3-p194/gems/actionpack-3.0.20/lib/action_dispatch/routing/mapper.rb:624:in 命名空间来自   /Users/anthonyto/.rvm/gems/ruby-1.9.3-p194/gems/actionpack-3.0.20/lib/action_dispatch/routing/mapper.rb:1119:in   {来自namespace' from /Users/anthonyto/ActiveNetwork/active-trainer/config/routes.rb:406:in 阻止（2级）   /Users/anthonyto/.rvm/gems/ruby-1.9.3-p194/gems/actionpack-3.0.20/lib/action_dispatch/routing/mapper.rb:624:in   block in namespace' from /Users/anthonyto/.rvm/gems/ruby-1.9.3-p194/gems/actionpack-3.0.20/lib/action_dispatch/routing/mapper.rb:546:in 范围'来自   /Users/anthonyto/.rvm/gems/ruby-1.9.3-p194/gems/actionpack-3.0.20/lib/action_dispatch/routing/mapper.rb:624:in   namespace' from /Users/anthonyto/.rvm/gems/ruby-1.9.3-p194/gems/actionpack-3.0.20/lib/action_dispatch/routing/mapper.rb:1119:in 命名空间来自   /Users/anthonyto/ActiveNetwork/active-trainer/config/routes.rb:405:in   来自block in <top (required)>' from /Users/anthonyto/.rvm/gems/ruby-1.9.3-p194/gems/actionpack-3.0.20/lib/action_dispatch/routing/route_set.rb:239:in instance_exec'   /Users/anthonyto/.rvm/gems/ruby-1.9.3-p194/gems/actionpack-3.0.20/lib/action_dispatch/routing/route_set.rb:239:in   来自draw' from /Users/anthonyto/ActiveNetwork/active-trainer/config/routes.rb:1:in '   /Users/anthonyto/.rvm/gems/ruby-1.9.3-p194/gems/activesupport-3.0.20/lib/active_support/dependencies.rb:236:in   load' from /Users/anthonyto/.rvm/gems/ruby-1.9.3-p194/gems/activesupport-3.0.20/lib/active_support/dependencies.rb:236:in 阻止加载'来自   /Users/anthonyto/.rvm/gems/ruby-1.9.3-p194/gems/activesupport-3.0.20/lib/active_support/dependencies.rb:225:in   来自block in load_dependency' from /Users/anthonyto/.rvm/gems/ruby-1.9.3-p194/gems/activesupport-3.0.20/lib/active_support/dependencies.rb:597:in new_constants_in'   /Users/anthonyto/.rvm/gems/ruby-1.9.3-p194/gems/activesupport-3.0.20/lib/active_support/dependencies.rb:225:in   来自load_dependency' from /Users/anthonyto/.rvm/gems/ruby-1.9.3-p194/gems/activesupport-3.0.20/lib/active_support/dependencies.rb:236:in 加载'   /Users/anthonyto/.rvm/gems/ruby-1.9.3-p194/gems/railties-3.0.20/lib/rails/application.rb:127:in   每个block in reload_routes!' from /Users/anthonyto/.rvm/gems/ruby-1.9.3-p194/gems/railties-3.0.20/lib/rails/application.rb:127:in 来自   /Users/anthonyto/.rvm/gems/ruby-1.9.3-p194/gems/railties-3.0.20/lib/rails/application.rb:127:in   来自routes_reloader的reload_routes!' from /Users/anthonyto/.rvm/gems/ruby-1.9.3-p194/gems/railties-3.0.20/lib/rails/application.rb:120:in 阻止   /Users/anthonyto/.rvm/gems/ruby-1.9.3-p194/gems/activesupport-3.0.20/lib/active_support/file_update_checker.rb:32:in   来自call' from /Users/anthonyto/.rvm/gems/ruby-1.9.3-p194/gems/activesupport-3.0.20/lib/active_support/file_update_checker.rb:32:in execute_if_updated'   /Users/anthonyto/.rvm/gems/ruby-1.9.3-p194/gems/railties-3.0.20/lib/rails/application/finisher.rb:51:in   block (2 levels) in <module:Finisher>' from /Users/anthonyto/.rvm/gems/ruby-1.9.3-p194/gems/railties-3.0.20/lib/rails/application/finisher.rb:52:in 来电   /Users/anthonyto/.rvm/gems/ruby-1.9.3-p194/gems/railties-3.0.20/lib/rails/application/finisher.rb:52:in   来自block in <module:Finisher>' from /Users/anthonyto/.rvm/gems/ruby-1.9.3-p194/gems/railties-3.0.20/lib/rails/initializable.rb:25:in instance_exec'   /Users/anthonyto/.rvm/gems/ruby-1.9.3-p194/gems/railties-3.0.20/lib/rails/initializable.rb:25:in   来自run_initializers的run' from /Users/anthonyto/.rvm/gems/ruby-1.9.3-p194/gems/railties-3.0.20/lib/rails/initializable.rb:50:in 阻止   /Users/anthonyto/.rvm/gems/ruby-1.9.3-p194/gems/railties-3.0.20/lib/rails/initializable.rb:49:in   来自each' from /Users/anthonyto/.rvm/gems/ruby-1.9.3-p194/gems/railties-3.0.20/lib/rails/initializable.rb:49:in run_initializers'   /Users/anthonyto/.rvm/gems/ruby-1.9.3-p194/gems/railties-3.0.20/lib/rails/application.rb:134:in   initialize!' from /Users/anthonyto/.rvm/gems/ruby-1.9.3-p194/gems/railties-3.0.20/lib/rails/application.rb:77:in method_missing'来自   /Users/anthonyto/ActiveNetwork/active-trainer/config/environment.rb:5:in   <top (required)>' from /Users/anthonyto/.rvm/gems/ruby-1.9.3-p194/gems/activesupport-3.0.20/lib/active_support/dependencies.rb:242:in 需要'来自   /Users/anthonyto/.rvm/gems/ruby-1.9.3-p194/gems/activesupport-3.0.20/lib/active_support/dependencies.rb:242:in   来自{load = dependency'的block in require' from /Users/anthonyto/.rvm/gems/ruby-1.9.3-p194/gems/activesupport-3.0.20/lib/active_support/dependencies.rb:225:in 阻止   /Users/anthonyto/.rvm/gems/ruby-1.9.3-p194/gems/activesupport-3.0.20/lib/active_support/dependencies.rb:597:in   来自new_constants_in' from /Users/anthonyto/.rvm/gems/ruby-1.9.3-p194/gems/activesupport-3.0.20/lib/active_support/dependencies.rb:225:in load_dependency'   /Users/anthonyto/.rvm/gems/ruby-1.9.3-p194/gems/activesupport-3.0.20/lib/active_support/dependencies.rb:242:in   require' from /Users/anthonyto/.rvm/gems/ruby-1.9.3-p194/gems/railties-3.0.20/lib/rails/application.rb:103:in require_environment！”从   /Users/anthonyto/.rvm/gems/ruby-1.9.3-p194/gems/railties-3.0.20/lib/rails/commands.rb:16:in   <top (required)>' from script/rails:7:in需要'来自   script / rails：7：in''

我正在运行ruby版本1.9.3和rails 3.0.20版本。我可以提供任何其他信息，非常感谢任何帮助。谢谢大家！

编辑：当我尝试启动我的rails服务器时，我得到同样的错误。似乎我的应用程序存在更深层次的问题。我以前当然没有这个问题，也不会想到我做过的任何事情会导致它。

Answer 1

FIX：所以我弄明白发生了什么，我会留在这里为遇到这个恼人错误的其他人。事实证明我是一个白痴，并在routes.rb文件中留下了一些错误的代码，如下所示：

  controller :calendar do
    get #write some routes here
  end

评论说，一切正常。