问：为什么会收到此错误消息？
adai183（master *）odot $ bin / rspec spec / features / todo_lists / create_spec.rb /Users/adai183/treehouse/projects/odot/spec/features/todo_lists/create_spec.rb:1:in require': cannot load such file -- spec helper (LoadError) from /Users/adai183/treehouse/projects/odot/spec/features/todo_lists/create_spec.rb:1:in<top（必填）>'来自/Users/adai183/.rvm/gems/ruby-2.2.1/gems/rspec-core-2.99.2/lib/rspec/core/configuration.rb:1065：load' from /Users/adai183/.rvm/gems/ruby-2.2.1/gems/rspec-core-2.99.2/lib/rspec/core/configuration.rb:1065:in位于来自/ Users / adai183 /的load_spec_files中的块.rvm / gems / ruby-2.2.1 / gems / rspec-core-2.99.2 / lib / rspec / core / configuration.rb：1065：在each' from /Users/adai183/.rvm/gems/ruby-2.2.1/gems/rspec-core-2.99.2/lib/rspec/core/configuration.rb:1065:in/Users/adai183/.rvm/gems/ruby-2.2的load_spec_files中.1 / gems / rspec-core-2.99.2 / lib / rspec / core / command_line.rb：18：run' from /Users/adai183/.rvm/gems/ruby-2.2.1/gems/rspec-core-2.99.2/lib/rspec/core/runner.rb:103:in运行中/Users/adai183/.rvm/gems/ruby-2.2.1/gems/rspec-core -2.99.2 / lib / rspec / core / runner.rb：17：在'自动运行中阻止'中
答：您的错误提示create_spec.rb找不到'spec helper'。您似乎在文件名中缺少下划线。应该
需要'spec_helper'
