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Strange error in rails - missing helper

Tags:

schema

ruby-on-rails-4

helper

I am not sure , but this might be associated with a crashed computer. After restarting (after the crash) I get a missing helper error where the helper name is wrong. Switching branches has no effect on the outcome.

The error is:

Missing helper file helpers//users/xxxx/sites/xxxx/app/helpers/accounts_helper.rb_helper.rb

Ive tried updating gems, uninstalled rails and reinstalled, checked helper names and anywhere helpers are included. Ive also reviewed git logs and checked recently changed code. No luck.

Stack Trace

Started GET "/" for 127.0.0.1 at 2015-01-09 17:53:57 -0700
  ActiveRecord::SchemaMigration Load (1.1ms)  SELECT "schema_migrations".* FROM "schema_migrations"

AbstractController::Helpers::MissingHelperError - Missing helper file helpers//users/xxxx/sites/xxxx/app/helpers/accounts_helper.rb_helper.rb:
  actionpack (4.2.0) lib/abstract_controller/helpers.rb:151:in `rescue in block in modules_for_helpers'
  actionpack (4.2.0) lib/abstract_controller/helpers.rb:148:in `block in modules_for_helpers'
  actionpack (4.2.0) lib/abstract_controller/helpers.rb:144:in `modules_for_helpers'
  actionpack (4.2.0) lib/action_controller/metal/helpers.rb:93:in `modules_for_helpers'
  actionpack (4.2.0) lib/abstract_controller/helpers.rb:108:in `helper'
  actionpack (4.2.0) lib/action_controller/railties/helpers.rb:17:in `inherited'
  app/controllers/application_controller.rb:1:in `<top (required)>'
  activesupport (4.2.0) lib/active_support/dependencies.rb:457:in `block in load_file'
  activesupport (4.2.0) lib/active_support/dependencies.rb:647:in `new_constants_in'
  activesupport (4.2.0) lib/active_support/dependencies.rb:456:in `load_file'
  activesupport (4.2.0) lib/active_support/dependencies.rb:354:in `require_or_load'
  activesupport (4.2.0) lib/active_support/dependencies.rb:494:in `load_missing_constant'
  activesupport (4.2.0) lib/active_support/dependencies.rb:184:in `const_missing'
  app/controllers/pages_controller.rb:1:in `<top (required)>'
  activesupport (4.2.0) lib/active_support/dependencies.rb:457:in `block in load_file'
  activesupport (4.2.0) lib/active_support/dependencies.rb:647:in `new_constants_in'
  activesupport (4.2.0) lib/active_support/dependencies.rb:456:in `load_file'
  activesupport (4.2.0) lib/active_support/dependencies.rb:354:in `require_or_load'
  activesupport (4.2.0) lib/active_support/dependencies.rb:494:in `load_missing_constant'
  activesupport (4.2.0) lib/active_support/dependencies.rb:184:in `const_missing'
  activesupport (4.2.0) lib/active_support/inflector/methods.rb:261:in `block in constantize'
  activesupport (4.2.0) lib/active_support/inflector/methods.rb:259:in `constantize'
  activesupport (4.2.0) lib/active_support/dependencies.rb:566:in `get'
  activesupport (4.2.0) lib/active_support/dependencies.rb:597:in `constantize'
  actionpack (4.2.0) lib/action_dispatch/routing/route_set.rb:69:in `controller_reference'
  actionpack (4.2.0) lib/action_dispatch/routing/route_set.rb:59:in `controller'
  actionpack (4.2.0) lib/action_dispatch/routing/route_set.rb:38:in `serve'
  actionpack (4.2.0) lib/action_dispatch/journey/router.rb:43:in `block in serve'
  actionpack (4.2.0) lib/action_dispatch/journey/router.rb:30:in `serve'
  actionpack (4.2.0) lib/action_dispatch/routing/route_set.rb:802:in `call'
  bullet (4.14.0) lib/bullet/rack.rb:10:in `call'
  meta_request (0.3.4) lib/meta_request/middlewares/app_request_handler.rb:13:in `call'
  meta_request (0.3.4) lib/meta_request/middlewares/meta_request_handler.rb:13:in `call'
  rack (1.6.0) lib/rack/etag.rb:24:in `call'
  rack (1.6.0) lib/rack/conditionalget.rb:25:in `call'
  rack (1.6.0) lib/rack/head.rb:13:in `call'
  actionpack (4.2.0) lib/action_dispatch/middleware/params_parser.rb:27:in `call'
  actionpack (4.2.0) lib/action_dispatch/middleware/flash.rb:260:in `call'
  rack (1.6.0) lib/rack/session/abstract/id.rb:225:in `context'
  rack (1.6.0) lib/rack/session/abstract/id.rb:220:in `call'
  actionpack (4.2.0) lib/action_dispatch/middleware/cookies.rb:560:in `call'
  activerecord (4.2.0) lib/active_record/query_cache.rb:36:in `call'
  activerecord (4.2.0) lib/active_record/connection_adapters/abstract/connection_pool.rb:647:in `call'
  activerecord (4.2.0) lib/active_record/migration.rb:378:in `call'
  actionpack (4.2.0) lib/action_dispatch/middleware/callbacks.rb:29:in `block in call'
  activesupport (4.2.0) lib/active_support/callbacks.rb:88:in `_run_callbacks'
  activesupport (4.2.0) lib/active_support/callbacks.rb:734:in `_run_call_callbacks'
  activesupport (4.2.0) lib/active_support/callbacks.rb:81:in `run_callbacks'
  actionpack (4.2.0) lib/action_dispatch/middleware/callbacks.rb:27:in `call'
  actionpack (4.2.0) lib/action_dispatch/middleware/reloader.rb:73:in `call'
  actionpack (4.2.0) lib/action_dispatch/middleware/remote_ip.rb:78:in `call'
  better_errors (2.1.0) lib/better_errors/middleware.rb:84:in `protected_app_call'
  better_errors (2.1.0) lib/better_errors/middleware.rb:79:in `better_errors_call'
  better_errors (2.1.0) lib/better_errors/middleware.rb:57:in `call'
  rack-contrib (1.2.0) lib/rack/contrib/response_headers.rb:17:in `call'
  meta_request (0.3.4) lib/meta_request/middlewares/headers.rb:16:in `call'
  web-console (2.0.0) lib/action_dispatch/debug_exceptions.rb:18:in `middleware_call'
  web-console (2.0.0) lib/action_dispatch/debug_exceptions.rb:13:in `call'
  actionpack (4.2.0) lib/action_dispatch/middleware/show_exceptions.rb:30:in `call'
  railties (4.2.0) lib/rails/rack/logger.rb:38:in `call_app'
  railties (4.2.0) lib/rails/rack/logger.rb:20:in `block in call'
  activesupport (4.2.0) lib/active_support/tagged_logging.rb:68:in `block in tagged'
  activesupport (4.2.0) lib/active_support/tagged_logging.rb:26:in `tagged'
  activesupport (4.2.0) lib/active_support/tagged_logging.rb:68:in `tagged'
  railties (4.2.0) lib/rails/rack/logger.rb:20:in `call'
  actionpack (4.2.0) lib/action_dispatch/middleware/request_id.rb:21:in `call'
  rack (1.6.0) lib/rack/methodoverride.rb:22:in `call'
  rack (1.6.0) lib/rack/runtime.rb:18:in `call'
  activesupport (4.2.0) lib/active_support/cache/strategy/local_cache_middleware.rb:28:in `call'
  rack (1.6.0) lib/rack/lock.rb:17:in `call'
  actionpack (4.2.0) lib/action_dispatch/middleware/static.rb:113:in `call'
  rack (1.6.0) lib/rack/sendfile.rb:113:in `call'
  rack-mini-profiler (0.9.2) lib/mini_profiler/profiler.rb:300:in `call'
  railties (4.2.0) lib/rails/engine.rb:518:in `call'
  railties (4.2.0) lib/rails/application.rb:164:in `call'
  rack (1.6.0) lib/rack/lock.rb:17:in `call'
  rack (1.6.0) lib/rack/content_length.rb:15:in `call'
  rack (1.6.0) lib/rack/handler/webrick.rb:89:in `service'
  /Users/Hank/.rvm/rubies/ruby-2.2.0-rc1/lib/ruby/2.2.0/webrick/httpserver.rb:138:in `service'
  /Users/Hank/.rvm/rubies/ruby-2.2.0-rc1/lib/ruby/2.2.0/webrick/httpserver.rb:94:in `run'
  /Users/Hank/.rvm/rubies/ruby-2.2.0-rc1/lib/ruby/2.2.0/webrick/server.rb:294:in `block in start_thread'
like image 994
hellion Avatar asked Jan 10 '15 01:01

hellion

4 Answers

The problem seems to have been introduced in the latest version of ruby, ruby 2.2.0.

Try this experiment:

in rails console/or irb:

[1] pry(main)>File.expand_path ("./") 
=> "/users/xxxx/Sites/xxxx"

and in the terminal window:

]$ pwd
/users/xxxx/sites/xxxx

See the different case? If you get that, then deep in the bowels of active support a regex goes south. One fix is to remove the "sites" directory and recreate. It might also work to rename the sites directory using the finder, as rename it to "foobar" and then back to "sites".

hth.

(from this page in Japan) http://translate.google.com/translate?hl=en&sl=ja&u=http://d.hatena.ne.jp/jiikko/20150108&prev=search

And when I was debugging this with another person, it was enough to have a mixed case directory name in the path. We renamed it to 'farknerd' and then back the original, except all lower case, and it worked.

like image 99
Rob Avatar answered Nov 13 '22 23:11

Rob

For me, the folder 'sites' only needed to be renamed, not the entire directory.

from my user root directory I did this...

mv sites sites1
mv sites1 sites
like image 11
Beengie Avatar answered Nov 14 '22 00:11

Beengie

Following Rob's instructions, I found it necessary to rename + lowercase every folder in the filepath up to 'Users' before my error went away.

like image 8
andytrombone Avatar answered Nov 14 '22 01:11

andytrombone

Mine also was a case issue. I was initially in the folder C:\users\pxxx\projects\odot which was throwing the above error. When I changed to C:\Users\Pxxx\projects\odot it seemed to work

like image 3
Pranay Aryal Avatar answered Nov 14 '22 00:11

Pranay Aryal
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