在尝试安装rspec时发出活动支持--未定义的方法'to_sym‘用于nil:NilClass

Question

我正在尝试安装RSpec，以便在我没有编写的应用程序上进行一些测试。我已经把

gem "rspec-rails"，"~> 2.8“

在我的ran文件中运行了bundle安装。这个效果很好。直到我跑了

rails生成rspec:install

我知道这个错误：

/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 methodto_sym‘for 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 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’从/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 match‘get /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’get‘from /User/anthonyto/ActiveNetwork/active-培训器/config/routeres.rb:447:在控制器中的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块中，“从/Users/anthonyto/ActiveNetwork/active-trainer/config/routes.rb:446:in 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”到“名称空间中的/Users/anthonyto/ActiveNetwork/active-trainer/config/routes.rb:446:in 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块”，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 namespace' from /Users/anthonyto/ActiveNetwork/active-trainer/config/routes.rb:406:in块(2个级别)’from /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作用域“从/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”到/Users/anthonyto/ActiveNetwork/active-trainer/config/routes.rb:405:in从/Users/anthonyto/.rvm/gems/ruby-1.9.3-p194/gems/actionpack-3.0.20/lib/action_dispatch/routing/route_set.rb:239:in draw' from /Users/anthonyto/ActiveNetwork/active-trainer/config/routes.rb:1:in到/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块的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‘load来自/Users/anthonyto的“从/Users/anthonyto/.rvm/gems/ruby-1.9.3-p194/gems/activesupport-3.0.20/lib/active_support/dependencies.rb:225:in 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”到/Users/anthonyto/.rvm/gems/ruby-1.9.3-p194/gems/activesupport-3.0.20/lib/active_support/dependencies.rb:225:in load_dependency' from /Users/anthonyto/.rvm/gems/ruby-1.9.3-p194/gems/activesupport-3.0.20/lib/active_support/dependencies.rb:236:in load‘/.rvm/gems/ruby-1.9.3-p194/gems/railties-3.0.20/lib/rails/application.rb:127:in 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各‘来自routes_reloader中的/Users/anthonyto/.rvm/gems/ruby-1.9.3-p194/gems/railties-3.0.20/lib/rails/application.rb:127:in reload_routes!' from /Users/anthonyto/.rvm/gems/ruby-1.9.3-p194/gems/railties-3.0.20/lib/rails/application.rb:120:in块’来自/Users/anthonyto/..rvm/gems/ruby-1.9。3-p194/gems/activesupport-3.0.20/lib/active_support/file_update_checker.rb:32:in 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 call”来自/Users/anthonyto/.rvm/gems/ruby-1.9.3-p194/gems/railties-3.0.20/lib/rails/application/finisher.rb:52:in 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从run_initializers中的/Users/anthonyto/.rvm/gems/ruby-1.9.3-p194/gems/railties-3.0.20/lib/rails/initializable.rb:25:in run' from /Users/anthonyto/.rvm/gems/ruby-1.9.3-p194/gems/railties-3.0.20/lib/rails/initializable.rb:50:in块到/Users/anthonyto/.rvm/gems/ruby-1.9.3-p194/gems/railties-3.0.20/lib/rails/initializable.rb:49:in each' from /Users/anthonyto/.rvm/gems/ruby-1.9.3-p194/gems/railties-3.0.20/lib/rails/initializable.rb:49:in run_initializers‘from initialize!' from /Users/anthonyto/.rvm/gems/ruby-1.9.3-p194/gems/railties-3.0.20/lib/rails/application.rb:77:in method_missing’from /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 require‘from /Users/anthonyto/..rvm/gems/ruby-1.9.3-p194/gems/activesupport-3.0.20/lib/active_support/dependencies.rb:242:in 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 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' from /Users/anthonyto/.rvm/gems/ruby-1.9.3-p194/gems/activesupport-3.0.20/lib/active_support/dependencies.rb:225:in load_dependency’from /Users/anthonyto/..rvm/gems/ruby-1.9.3-p 194/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！来自/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:inrequire‘from script/rails:7:in

我运行的是ruby版本1.9.3和rails版本3.0.20。我可以提供任何额外的信息，任何帮助都将非常感谢。谢谢大家！

编辑:当我试图启动我的rails服务器时，我得到了同样的错误。我的应用程序似乎有一个更深层次的问题。我以前当然没有这个问题，我想不出我做了什么事情会导致这个问题。

Answer 1

修正:所以我搞清楚了到底是怎么回事，我会把它留给其他遇到这个恼人错误的人。原来我是个白痴，在routes.rb文件中留下了一些错误代码，如下所示：

控制器:日历要写#写一些路线在这里结束

评论一下，一切都很顺利。