ruby on rails AbstractController::Helpers::MissingHelperError: Missing helper file helpers//

Posted 2023-03-04

【中文标题】ruby on rails AbstractController::Helpers::MissingHelperError: Missing helper file helpers//

【英文标题】：

【发布时间】：2015-05-04 10:52:45

【问题描述】：

我刚刚从另一台计算机克隆了我正在处理的存储库。当我尝试通过运行 'rake db:migrate' 进行数据库迁移时，出现以下错误：

AbstractController::Helpers::MissingHelperError: 
Missing helper file helpers//users/psmith/projects/clie/projectlion/app/helpers/application_helper.rb_helper.rb

我已经在这里尝试了最佳答案：Rails: AbstractController::Helpers::MissingHelperError - Missing helper file application_helper.rb_helper.rb

它说在终端中执行以下操作：

cd ~
mv projects projects1
mv projects1 projects

我也试过了：

sudo ln -s Users users

但这对我不起作用。我该怎么办？

更新：

这是我的堆栈跟踪：

ps-MacBook-Pro:projectlion psmith$ rake db:migrate
rake aborted!
AbstractController::Helpers::MissingHelperError: Missing helper file helpers//users/psmith/projects/clie/projectlion/app/helpers/application_helper.rb_helper.rb
/Users/psmith/.rvm/gems/ruby-2.2.0/gems/actionpack-4.1.4/lib/abstract_controller/helpers.rb:154:in `rescue in block in modules_for_helpers'
/Users/psmith/.rvm/gems/ruby-2.2.0/gems/actionpack-4.1.4/lib/abstract_controller/helpers.rb:151:in `block in modules_for_helpers'
/Users/psmith/.rvm/gems/ruby-2.2.0/gems/actionpack-4.1.4/lib/abstract_controller/helpers.rb:147:in `map!'
/Users/psmith/.rvm/gems/ruby-2.2.0/gems/actionpack-4.1.4/lib/abstract_controller/helpers.rb:147:in `modules_for_helpers'
/Users/psmith/.rvm/gems/ruby-2.2.0/gems/actionpack-4.1.4/lib/action_controller/metal/helpers.rb:93:in `modules_for_helpers'
/Users/psmith/.rvm/gems/ruby-2.2.0/gems/actionpack-4.1.4/lib/abstract_controller/helpers.rb:111:in `helper'
/Users/psmith/.rvm/gems/ruby-2.2.0/gems/actionpack-4.1.4/lib/action_controller/railties/helpers.rb:17:in `inherited'
/Users/psmith/projects/clie/projectlion/app/controllers/application_controller.rb:1:in `<top (required)>'
/Users/psmith/.rvm/gems/ruby-2.2.0/gems/activesupport-4.1.4/lib/active_support/dependencies.rb:443:in `load'
/Users/psmith/.rvm/gems/ruby-2.2.0/gems/activesupport-4.1.4/lib/active_support/dependencies.rb:443:in `block in load_file'
/Users/psmith/.rvm/gems/ruby-2.2.0/gems/activesupport-4.1.4/lib/active_support/dependencies.rb:633:in `new_constants_in'
/Users/psmith/.rvm/gems/ruby-2.2.0/gems/activesupport-4.1.4/lib/active_support/dependencies.rb:442:in `load_file'
/Users/psmith/.rvm/gems/ruby-2.2.0/gems/activesupport-4.1.4/lib/active_support/dependencies.rb:342:in `require_or_load'
/Users/psmith/.rvm/gems/ruby-2.2.0/gems/activesupport-4.1.4/lib/active_support/dependencies.rb:480:in `load_missing_constant'
/Users/psmith/.rvm/gems/ruby-2.2.0/gems/activesupport-4.1.4/lib/active_support/dependencies.rb:180:in `const_missing'
/Users/psmith/.rvm/gems/ruby-2.2.0/gems/activesupport-4.1.4/lib/active_support/inflector/methods.rb:238:in `const_get'
/Users/psmith/.rvm/gems/ruby-2.2.0/gems/activesupport-4.1.4/lib/active_support/inflector/methods.rb:238:in `block in constantize'
/Users/psmith/.rvm/gems/ruby-2.2.0/gems/activesupport-4.1.4/lib/active_support/inflector/methods.rb:236:in `each'
/Users/psmith/.rvm/gems/ruby-2.2.0/gems/activesupport-4.1.4/lib/active_support/inflector/methods.rb:236:in `inject'
/Users/psmith/.rvm/gems/ruby-2.2.0/gems/activesupport-4.1.4/lib/active_support/inflector/methods.rb:236:in `constantize'
/Users/psmith/.rvm/gems/ruby-2.2.0/gems/activesupport-4.1.4/lib/active_support/core_ext/string/inflections.rb:66:in `constantize'
/Users/psmith/.rvm/gems/ruby-2.2.0/bundler/gems/devise-fea2b95c5fde/app/controllers/devise_controller.rb:2:in `<top (required)>'
/Users/psmith/.rvm/gems/ruby-2.2.0/gems/activesupport-4.1.4/lib/active_support/dependencies.rb:443:in `load'
/Users/psmith/.rvm/gems/ruby-2.2.0/gems/activesupport-4.1.4/lib/active_support/dependencies.rb:443:in `block in load_file'
/Users/psmith/.rvm/gems/ruby-2.2.0/gems/activesupport-4.1.4/lib/active_support/dependencies.rb:633:in `new_constants_in'
/Users/psmith/.rvm/gems/ruby-2.2.0/gems/activesupport-4.1.4/lib/active_support/dependencies.rb:442:in `load_file'
/Users/psmith/.rvm/gems/ruby-2.2.0/gems/activesupport-4.1.4/lib/active_support/dependencies.rb:342:in `require_or_load'
/Users/psmith/.rvm/gems/ruby-2.2.0/gems/activesupport-4.1.4/lib/active_support/dependencies.rb:480:in `load_missing_constant'
/Users/psmith/.rvm/gems/ruby-2.2.0/gems/activesupport-4.1.4/lib/active_support/dependencies.rb:180:in `const_missing'
/Users/psmith/.rvm/gems/ruby-2.2.0/bundler/gems/devise-fea2b95c5fde/app/controllers/devise/sessions_controller.rb:1:in `<top (required)>'
/Users/psmith/.rvm/gems/ruby-2.2.0/gems/activesupport-4.1.4/lib/active_support/dependencies.rb:443:in `load'
/Users/psmith/.rvm/gems/ruby-2.2.0/gems/activesupport-4.1.4/lib/active_support/dependencies.rb:443:in `block in load_file'
/Users/psmith/.rvm/gems/ruby-2.2.0/gems/activesupport-4.1.4/lib/active_support/dependencies.rb:633:in `new_constants_in'
/Users/psmith/.rvm/gems/ruby-2.2.0/gems/activesupport-4.1.4/lib/active_support/dependencies.rb:442:in `load_file'
/Users/psmith/.rvm/gems/ruby-2.2.0/gems/activesupport-4.1.4/lib/active_support/dependencies.rb:342:in `require_or_load'
/Users/psmith/.rvm/gems/ruby-2.2.0/gems/activesupport-4.1.4/lib/active_support/dependencies.rb:480:in `load_missing_constant'
/Users/psmith/.rvm/gems/ruby-2.2.0/gems/activesupport-4.1.4/lib/active_support/dependencies.rb:180:in `const_missing'
/Users/psmith/.rvm/gems/ruby-2.2.0/bundler/gems/activeadmin-3f916d6bee73/lib/active_admin/devise.rb:55:in `<module:Devise>'
/Users/psmith/.rvm/gems/ruby-2.2.0/bundler/gems/activeadmin-3f916d6bee73/lib/active_admin/devise.rb:6:in `<module:ActiveAdmin>'
/Users/psmith/.rvm/gems/ruby-2.2.0/bundler/gems/activeadmin-3f916d6bee73/lib/active_admin/devise.rb:5:in `<top (required)>'
/Users/psmith/projects/clie/projectlion/config/routes.rb:2:in `block in <top (required)>'
/Users/psmith/.rvm/gems/ruby-2.2.0/gems/actionpack-4.1.4/lib/action_dispatch/routing/route_set.rb:337:in `instance_exec'
/Users/psmith/.rvm/gems/ruby-2.2.0/gems/actionpack-4.1.4/lib/action_dispatch/routing/route_set.rb:337:in `eval_block'
/Users/psmith/.rvm/gems/ruby-2.2.0/gems/actionpack-4.1.4/lib/action_dispatch/routing/route_set.rb:315:in `draw'
/Users/psmith/projects/clie/projectlion/config/routes.rb:1:in `<top (required)>'
/Users/psmith/.rvm/gems/ruby-2.2.0/gems/activesupport-4.1.4/lib/active_support/dependencies.rb:241:in `load'
/Users/psmith/.rvm/gems/ruby-2.2.0/gems/activesupport-4.1.4/lib/active_support/dependencies.rb:241:in `block in load'
/Users/psmith/.rvm/gems/ruby-2.2.0/gems/activesupport-4.1.4/lib/active_support/dependencies.rb:232:in `load_dependency'
/Users/psmith/.rvm/gems/ruby-2.2.0/gems/activesupport-4.1.4/lib/active_support/dependencies.rb:241:in `load'
/Users/psmith/.rvm/gems/ruby-2.2.0/gems/railties-4.1.4/lib/rails/application/routes_reloader.rb:40:in `block in load_paths'
/Users/psmith/.rvm/gems/ruby-2.2.0/gems/railties-4.1.4/lib/rails/application/routes_reloader.rb:40:in `each'
/Users/psmith/.rvm/gems/ruby-2.2.0/gems/railties-4.1.4/lib/rails/application/routes_reloader.rb:40:in `load_paths'
/Users/psmith/.rvm/gems/ruby-2.2.0/gems/railties-4.1.4/lib/rails/application/routes_reloader.rb:16:in `reload!'
/Users/psmith/.rvm/gems/ruby-2.2.0/gems/railties-4.1.4/lib/rails/application/routes_reloader.rb:26:in `block in updater'
/Users/psmith/.rvm/gems/ruby-2.2.0/gems/activesupport-4.1.4/lib/active_support/file_update_checker.rb:75:in `call'
/Users/psmith/.rvm/gems/ruby-2.2.0/gems/activesupport-4.1.4/lib/active_support/file_update_checker.rb:75:in `execute'
/Users/psmith/.rvm/gems/ruby-2.2.0/gems/railties-4.1.4/lib/rails/application/routes_reloader.rb:27:in `updater'
/Users/psmith/.rvm/gems/ruby-2.2.0/gems/railties-4.1.4/lib/rails/application/routes_reloader.rb:7:in `execute_if_updated'
/Users/psmith/.rvm/gems/ruby-2.2.0/gems/railties-4.1.4/lib/rails/application/finisher.rb:71:in `block in <module:Finisher>'
/Users/psmith/.rvm/gems/ruby-2.2.0/gems/railties-4.1.4/lib/rails/initializable.rb:30:in `instance_exec'
/Users/psmith/.rvm/gems/ruby-2.2.0/gems/railties-4.1.4/lib/rails/initializable.rb:30:in `run'
/Users/psmith/.rvm/gems/ruby-2.2.0/gems/railties-4.1.4/lib/rails/initializable.rb:55:in `block in run_initializers'
/Users/psmith/.rvm/gems/ruby-2.2.0/gems/railties-4.1.4/lib/rails/initializable.rb:54:in `run_initializers'
/Users/psmith/.rvm/gems/ruby-2.2.0/gems/railties-4.1.4/lib/rails/application.rb:300:in `initialize!'
/Users/psmith/projects/clie/projectlion/config/environment.rb:5:in `<top (required)>'
/Users/psmith/.rvm/gems/ruby-2.2.0/gems/activesupport-4.1.4/lib/active_support/dependencies.rb:247:in `require'
/Users/psmith/.rvm/gems/ruby-2.2.0/gems/activesupport-4.1.4/lib/active_support/dependencies.rb:247:in `block in require'
/Users/psmith/.rvm/gems/ruby-2.2.0/gems/activesupport-4.1.4/lib/active_support/dependencies.rb:232:in `load_dependency'
/Users/psmith/.rvm/gems/ruby-2.2.0/gems/activesupport-4.1.4/lib/active_support/dependencies.rb:247:in `require'
/Users/psmith/.rvm/gems/ruby-2.2.0/gems/railties-4.1.4/lib/rails/application.rb:276:in `require_environment!'
/Users/psmith/.rvm/gems/ruby-2.2.0/gems/railties-4.1.4/lib/rails/application.rb:379:in `block in run_tasks_blocks'
/Users/psmith/.rvm/gems/ruby-2.2.0/bin/ruby_executable_hooks:15:in `eval'
/Users/psmith/.rvm/gems/ruby-2.2.0/bin/ruby_executable_hooks:15:in `<main>'
LoadError: No such file to load -- /users/psmith/projects/clie/projectlion/app/helpers/application_helper.rb_helper
/Users/psmith/.rvm/gems/ruby-2.2.0/gems/activesupport-4.1.4/lib/active_support/dependencies.rb:443:in `load'
/Users/psmith/.rvm/gems/ruby-2.2.0/gems/activesupport-4.1.4/lib/active_support/dependencies.rb:443:in `block in load_file'
/Users/psmith/.rvm/gems/ruby-2.2.0/gems/activesupport-4.1.4/lib/active_support/dependencies.rb:633:in `new_constants_in'
/Users/psmith/.rvm/gems/ruby-2.2.0/gems/activesupport-4.1.4/lib/active_support/dependencies.rb:442:in `load_file'
/Users/psmith/.rvm/gems/ruby-2.2.0/gems/activesupport-4.1.4/lib/active_support/dependencies.rb:342:in `require_or_load'
/Users/psmith/.rvm/gems/ruby-2.2.0/gems/activesupport-4.1.4/lib/active_support/dependencies.rb:307:in `depend_on'
/Users/psmith/.rvm/gems/ruby-2.2.0/gems/activesupport-4.1.4/lib/active_support/dependencies.rb:225:in `require_dependency'
/Users/psmith/.rvm/gems/ruby-2.2.0/gems/actionpack-4.1.4/lib/abstract_controller/helpers.rb:152:in `block in modules_for_helpers'
/Users/psmith/.rvm/gems/ruby-2.2.0/gems/actionpack-4.1.4/lib/abstract_controller/helpers.rb:147:in `map!'
/Users/psmith/.rvm/gems/ruby-2.2.0/gems/actionpack-4.1.4/lib/abstract_controller/helpers.rb:147:in `modules_for_helpers'
/Users/psmith/.rvm/gems/ruby-2.2.0/gems/actionpack-4.1.4/lib/action_controller/metal/helpers.rb:93:in `modules_for_helpers'
/Users/psmith/.rvm/gems/ruby-2.2.0/gems/actionpack-4.1.4/lib/abstract_controller/helpers.rb:111:in `helper'
/Users/psmith/.rvm/gems/ruby-2.2.0/gems/actionpack-4.1.4/lib/action_controller/railties/helpers.rb:17:in `inherited'
/Users/psmith/projects/clie/projectlion/app/controllers/application_controller.rb:1:in `<top (required)>'
/Users/psmith/.rvm/gems/ruby-2.2.0/gems/activesupport-4.1.4/lib/active_support/dependencies.rb:443:in `load'
/Users/psmith/.rvm/gems/ruby-2.2.0/gems/activesupport-4.1.4/lib/active_support/dependencies.rb:443:in `block in load_file'
/Users/psmith/.rvm/gems/ruby-2.2.0/gems/activesupport-4.1.4/lib/active_support/dependencies.rb:633:in `new_constants_in'
/Users/psmith/.rvm/gems/ruby-2.2.0/gems/activesupport-4.1.4/lib/active_support/dependencies.rb:442:in `load_file'
/Users/psmith/.rvm/gems/ruby-2.2.0/gems/activesupport-4.1.4/lib/active_support/dependencies.rb:342:in `require_or_load'
/Users/psmith/.rvm/gems/ruby-2.2.0/gems/activesupport-4.1.4/lib/active_support/dependencies.rb:480:in `load_missing_constant'
/Users/psmith/.rvm/gems/ruby-2.2.0/gems/activesupport-4.1.4/lib/active_support/dependencies.rb:180:in `const_missing'
/Users/psmith/.rvm/gems/ruby-2.2.0/gems/activesupport-4.1.4/lib/active_support/inflector/methods.rb:238:in `const_get'
/Users/psmith/.rvm/gems/ruby-2.2.0/gems/activesupport-4.1.4/lib/active_support/inflector/methods.rb:238:in `block in constantize'
/Users/psmith/.rvm/gems/ruby-2.2.0/gems/activesupport-4.1.4/lib/active_support/inflector/methods.rb:236:in `each'
/Users/psmith/.rvm/gems/ruby-2.2.0/gems/activesupport-4.1.4/lib/active_support/inflector/methods.rb:236:in `inject'
/Users/psmith/.rvm/gems/ruby-2.2.0/gems/activesupport-4.1.4/lib/active_support/inflector/methods.rb:236:in `constantize'
/Users/psmith/.rvm/gems/ruby-2.2.0/gems/activesupport-4.1.4/lib/active_support/core_ext/string/inflections.rb:66:in `constantize'
/Users/psmith/.rvm/gems/ruby-2.2.0/bundler/gems/devise-fea2b95c5fde/app/controllers/devise_controller.rb:2:in `<top (required)>'
/Users/psmith/.rvm/gems/ruby-2.2.0/gems/activesupport-4.1.4/lib/active_support/dependencies.rb:443:in `load'
/Users/psmith/.rvm/gems/ruby-2.2.0/gems/activesupport-4.1.4/lib/active_support/dependencies.rb:443:in `block in load_file'
/Users/psmith/.rvm/gems/ruby-2.2.0/gems/activesupport-4.1.4/lib/active_support/dependencies.rb:633:in `new_constants_in'
/Users/psmith/.rvm/gems/ruby-2.2.0/gems/activesupport-4.1.4/lib/active_support/dependencies.rb:442:in `load_file'
/Users/psmith/.rvm/gems/ruby-2.2.0/gems/activesupport-4.1.4/lib/active_support/dependencies.rb:342:in `require_or_load'
/Users/psmith/.rvm/gems/ruby-2.2.0/gems/activesupport-4.1.4/lib/active_support/dependencies.rb:480:in `load_missing_constant'
/Users/psmith/.rvm/gems/ruby-2.2.0/gems/activesupport-4.1.4/lib/active_support/dependencies.rb:180:in `const_missing'
/Users/psmith/.rvm/gems/ruby-2.2.0/bundler/gems/devise-fea2b95c5fde/app/controllers/devise/sessions_controller.rb:1:in `<top (required)>'
/Users/psmith/.rvm/gems/ruby-2.2.0/gems/activesupport-4.1.4/lib/active_support/dependencies.rb:443:in `load'
/Users/psmith/.rvm/gems/ruby-2.2.0/gems/activesupport-4.1.4/lib/active_support/dependencies.rb:443:in `block in load_file'
/Users/psmith/.rvm/gems/ruby-2.2.0/gems/activesupport-4.1.4/lib/active_support/dependencies.rb:633:in `new_constants_in'
/Users/psmith/.rvm/gems/ruby-2.2.0/gems/activesupport-4.1.4/lib/active_support/dependencies.rb:442:in `load_file'
/Users/psmith/.rvm/gems/ruby-2.2.0/gems/activesupport-4.1.4/lib/active_support/dependencies.rb:342:in `require_or_load'
/Users/psmith/.rvm/gems/ruby-2.2.0/gems/activesupport-4.1.4/lib/active_support/dependencies.rb:480:in `load_missing_constant'
/Users/psmith/.rvm/gems/ruby-2.2.0/gems/activesupport-4.1.4/lib/active_support/dependencies.rb:180:in `const_missing'
/Users/psmith/.rvm/gems/ruby-2.2.0/bundler/gems/activeadmin-3f916d6bee73/lib/active_admin/devise.rb:55:in `<module:Devise>'
/Users/psmith/.rvm/gems/ruby-2.2.0/bundler/gems/activeadmin-3f916d6bee73/lib/active_admin/devise.rb:6:in `<module:ActiveAdmin>'
/Users/psmith/.rvm/gems/ruby-2.2.0/bundler/gems/activeadmin-3f916d6bee73/lib/active_admin/devise.rb:5:in `<top (required)>'
/Users/psmith/projects/clie/projectlion/config/routes.rb:2:in `block in <top (required)>'
/Users/psmith/.rvm/gems/ruby-2.2.0/gems/actionpack-4.1.4/lib/action_dispatch/routing/route_set.rb:337:in `instance_exec'
/Users/psmith/.rvm/gems/ruby-2.2.0/gems/actionpack-4.1.4/lib/action_dispatch/routing/route_set.rb:337:in `eval_block'
/Users/psmith/.rvm/gems/ruby-2.2.0/gems/actionpack-4.1.4/lib/action_dispatch/routing/route_set.rb:315:in `draw'
/Users/psmith/projects/clie/projectlion/config/routes.rb:1:in `<top (required)>'
/Users/psmith/.rvm/gems/ruby-2.2.0/gems/activesupport-4.1.4/lib/active_support/dependencies.rb:241:in `load'
/Users/psmith/.rvm/gems/ruby-2.2.0/gems/activesupport-4.1.4/lib/active_support/dependencies.rb:241:in `block in load'
/Users/psmith/.rvm/gems/ruby-2.2.0/gems/activesupport-4.1.4/lib/active_support/dependencies.rb:232:in `load_dependency'
/Users/psmith/.rvm/gems/ruby-2.2.0/gems/activesupport-4.1.4/lib/active_support/dependencies.rb:241:in `load'
/Users/psmith/.rvm/gems/ruby-2.2.0/gems/railties-4.1.4/lib/rails/application/routes_reloader.rb:40:in `block in load_paths'
/Users/psmith/.rvm/gems/ruby-2.2.0/gems/railties-4.1.4/lib/rails/application/routes_reloader.rb:40:in `each'
/Users/psmith/.rvm/gems/ruby-2.2.0/gems/railties-4.1.4/lib/rails/application/routes_reloader.rb:40:in `load_paths'
/Users/psmith/.rvm/gems/ruby-2.2.0/gems/railties-4.1.4/lib/rails/application/routes_reloader.rb:16:in `reload!'
/Users/psmith/.rvm/gems/ruby-2.2.0/gems/railties-4.1.4/lib/rails/application/routes_reloader.rb:26:in `block in updater'
/Users/psmith/.rvm/gems/ruby-2.2.0/gems/activesupport-4.1.4/lib/active_support/file_update_checker.rb:75:in `call'
/Users/psmith/.rvm/gems/ruby-2.2.0/gems/activesupport-4.1.4/lib/active_support/file_update_checker.rb:75:in `execute'
/Users/psmith/.rvm/gems/ruby-2.2.0/gems/railties-4.1.4/lib/rails/application/routes_reloader.rb:27:in `updater'
/Users/psmith/.rvm/gems/ruby-2.2.0/gems/railties-4.1.4/lib/rails/application/routes_reloader.rb:7:in `execute_if_updated'
/Users/psmith/.rvm/gems/ruby-2.2.0/gems/railties-4.1.4/lib/rails/application/finisher.rb:71:in `block in <module:Finisher>'
/Users/psmith/.rvm/gems/ruby-2.2.0/gems/railties-4.1.4/lib/rails/initializable.rb:30:in `instance_exec'
/Users/psmith/.rvm/gems/ruby-2.2.0/gems/railties-4.1.4/lib/rails/initializable.rb:30:in `run'
/Users/psmith/.rvm/gems/ruby-2.2.0/gems/railties-4.1.4/lib/rails/initializable.rb:55:in `block in run_initializers'
/Users/psmith/.rvm/gems/ruby-2.2.0/gems/railties-4.1.4/lib/rails/initializable.rb:54:in `run_initializers'
/Users/psmith/.rvm/gems/ruby-2.2.0/gems/railties-4.1.4/lib/rails/application.rb:300:in `initialize!'
/Users/psmith/projects/clie/projectlion/config/environment.rb:5:in `<top (required)>'
/Users/psmith/.rvm/gems/ruby-2.2.0/gems/activesupport-4.1.4/lib/active_support/dependencies.rb:247:in `require'
/Users/psmith/.rvm/gems/ruby-2.2.0/gems/activesupport-4.1.4/lib/active_support/dependencies.rb:247:in `block in require'
/Users/psmith/.rvm/gems/ruby-2.2.0/gems/activesupport-4.1.4/lib/active_support/dependencies.rb:232:in `load_dependency'
/Users/psmith/.rvm/gems/ruby-2.2.0/gems/activesupport-4.1.4/lib/active_support/dependencies.rb:247:in `require'
/Users/psmith/.rvm/gems/ruby-2.2.0/gems/railties-4.1.4/lib/rails/application.rb:276:in `require_environment!'
/Users/psmith/.rvm/gems/ruby-2.2.0/gems/railties-4.1.4/lib/rails/application.rb:379:in `block in run_tasks_blocks'
/Users/psmith/.rvm/gems/ruby-2.2.0/bin/ruby_executable_hooks:15:in `eval'
/Users/psmith/.rvm/gems/ruby-2.2.0/bin/ruby_executable_hooks:15:in `<main>'

【问题讨论】：

那个文件真的存在吗？当你输入“ls /users/philipgreenwald/projects/callie/projectlion/app/helpers/application_helper.rb_helper.rb”时你会得到什么？你的 app/helpers/ 目录中的帮助文件真的命名为“application_helper_rb.rb_helper.rb”，还是只是“application_helper.rb”？

文件不存在。它只是 application_helper.rb。

根据您提供的链接，您是否在控制器或应用程序的其他任何地方搜索过类似“helper”application_helper.rb”的“helpers”命令？这几乎可以肯定是您的问题的原因。当我把它放在我的一个测试应用控制器中时，我得到了完全相同的错误。

我不确定我是否理解您要搜索的内容？肯定有一个名为 application_helper.rb 的文件，因为它存在于所有 Rails 应用程序中。

你能发布完整的错误堆栈跟踪吗？

【参考方案1】：

我遇到了同样的挑战，在阅读了所有答案后，都没有成功。这就是我修复错误的方法：

打开 Finder 并检查我的代码的路径。我的路径是myMac/Code/my apps。

我将 Code 更改为 code 并修复了错误。

现在我的路径是myMac/code/my apps。

【讨论】：

其实我昨天刚刚解决了这个问题，你说的很对！

【参考方案2】：

从昨天开始我遇到了同样的问题，我刚刚解决了它。在我安装了 Xcode 6.3 的命令行工具后，我开始出现错误，并且恢复到 Xcode 6.2 的命令行工具解决了这个问题。您可以在此处下载以前版本的 DMG：https://developer.apple.com/downloads/index.action

这似乎是 Ruby 2.2.* 和 Xcode 6.3 命令行工具之间的某种冲突 - 希望它会很快得到妥善解决！

【参考方案3】：

我也有同样的问题。当我运行rake test。 正如Strange error in rails - missing helper 中所建议的那样。 在 irb 或 pry 中试试这个：

pry(main)> File.expand_path('./')

你会得到类似=> "/users/xxxx/Sites/xxxx"

然后在终端中运行pwd 并比较路径差异。 你会得到类似/users/xxxx/sites/xxxx 的东西。 如果是这种情况，您尝试的上述方法将起作用。这是由于可能的 ruby​​ 2.2.0 或 rails 核心问题，它弄乱了网站名称并将其大写。所以在 linux 或 mac 等区分大小写的操作系统中，它不会找到路径。

但如果你不是这种情况，就像我一样。我建议您检查您使用的 ruby​​ 版本。我使用ruby 2.2.0，然后切换2.2.1。还有rails 4.2.0。

然后我切换到ruby 2.1.5。 rails 版本保留。问题解决了。我猜这是红宝石的问题？..

【参考方案4】：

就我而言，我使用的是 Windows。使用 Git shell，我在尝试从 thinkbot 安装 gem administrate 时不断收到此错误。一直给我错误“AbstractController::Helpers::MissingHelperError”的命令是：

$ rails generate administrate:install

我没有像许多答案所建议的那样将我的文件夹重命名为小写。我改为使用窗口的 cmd。效果很好。

【讨论】：

我是 Rails 新手，我在看到的教程中也是这样做的，但出现了这个错误。您的建议从 cmd 而不是 Git Shell 完美地尝试了 rails 服务器，现在我没有看到这个错误。知道为什么会抛出这样的错误吗？

@suryakrish ，我不确定，但我猜在使用 windows cmd 时，它使用文件夹名称，所以如果你使用小写，如果文件夹/路径名称是，它会自动大写大写，与 git shell 不同，它使用你给它的路径名。