undefined method `delete' for nil:NilClass

[efleming]

I am getting an occasional issue (3 occurrences in about 500 attempts) when users try to authenticate with Twitter. I am trying to fix the issue but I am not yet knowledgable enough on the internal workings of OmniAuth and figured someone else may be able to fix it faster. Here is the stack trace, url params, and session info of one of the failed requests:

Stack Trace: NilClass# (NoMethodError) "undefined method delete' for nil:NilClass" /app/vendor/bundle/ruby/1.9.1/gems/omniauth-oauth-1.0.1/lib/omniauth/strategies/oauth.rb:48:incallback_phase' /app/vendor/bundle/ruby/1.9.1/gems/omniauth-1.1.0/lib/omniauth/strategy.rb:219:in callback_call' /app/vendor/bundle/ruby/1.9.1/gems/omniauth-1.1.0/lib/omniauth/strategy.rb:175:incall!' /app/vendor/bundle/ruby/1.9.1/gems/omniauth-1.1.0/lib/omniauth/strategy.rb:157:in call' /app/vendor/bundle/ruby/1.9.1/gems/omniauth-1.1.0/lib/omniauth/strategy.rb:177:incall!' /app/vendor/bundle/ruby/1.9.1/gems/omniauth-1.1.0/lib/omniauth/strategy.rb:157:in call' /app/vendor/bundle/ruby/1.9.1/gems/omniauth-1.1.0/lib/omniauth/builder.rb:48:incall' /app/vendor/bundle/ruby/1.9.1/gems/exceptional-2.0.32/lib/exceptional/integration/rack_rails.rb:13:in call' /app/vendor/bundle/ruby/1.9.1/gems/actionpack-3.2.3/lib/action_dispatch/middleware/best_standards_support.rb:17:incall' /app/vendor/bundle/ruby/1.9.1/gems/rack-1.4.1/lib/rack/etag.rb:23:in call' /app/vendor/bundle/ruby/1.9.1/gems/rack-1.4.1/lib/rack/conditionalget.rb:25:incall' /app/vendor/bundle/ruby/1.9.1/gems/actionpack-3.2.3/lib/action_dispatch/middleware/head.rb:14:in call' /app/vendor/bundle/ruby/1.9.1/gems/actionpack-3.2.3/lib/action_dispatch/middleware/params_parser.rb:21:incall' /app/vendor/bundle/ruby/1.9.1/gems/actionpack-3.2.3/lib/action_dispatch/middleware/flash.rb:242:in call' /app/vendor/bundle/ruby/1.9.1/gems/rack-1.4.1/lib/rack/session/abstract/id.rb:205:incontext' /app/vendor/bundle/ruby/1.9.1/gems/rack-1.4.1/lib/rack/session/abstract/id.rb:200:in call' /app/vendor/bundle/ruby/1.9.1/gems/actionpack-3.2.3/lib/action_dispatch/middleware/cookies.rb:338:incall' /app/vendor/bundle/ruby/1.9.1/gems/actionpack-3.2.3/lib/action_dispatch/middleware/callbacks.rb:28:in block in call' /app/vendor/bundle/ruby/1.9.1/gems/activesupport-3.2.3/lib/active_support/callbacks.rb:405:in_run__622710885669741672__call__2802837077016637006__callbacks' /app/vendor/bundle/ruby/1.9.1/gems/activesupport-3.2.3/lib/active_support/callbacks.rb:405:in __run_callback' /app/vendor/bundle/ruby/1.9.1/gems/activesupport-3.2.3/lib/active_support/callbacks.rb:385:in_run_call_callbacks' /app/vendor/bundle/ruby/1.9.1/gems/activesupport-3.2.3/lib/active_support/callbacks.rb:81:in run_callbacks' /app/vendor/bundle/ruby/1.9.1/gems/actionpack-3.2.3/lib/action_dispatch/middleware/callbacks.rb:27:incall' /app/vendor/bundle/ruby/1.9.1/gems/actionpack-3.2.3/lib/action_dispatch/middleware/remote_ip.rb:31:in call' /app/vendor/bundle/ruby/1.9.1/gems/actionpack-3.2.3/lib/action_dispatch/middleware/debug_exceptions.rb:16:incall' /app/vendor/bundle/ruby/1.9.1/gems/actionpack-3.2.3/lib/action_dispatch/middleware/show_exceptions.rb:56:in call' /app/vendor/bundle/ruby/1.9.1/gems/railties-3.2.3/lib/rails/rack/logger.rb:26:incall_app' /app/vendor/bundle/ruby/1.9.1/gems/railties-3.2.3/lib/rails/rack/logger.rb:16:in call' /app/vendor/bundle/ruby/1.9.1/gems/actionpack-3.2.3/lib/action_dispatch/middleware/request_id.rb:22:incall' /app/vendor/bundle/ruby/1.9.1/gems/rack-1.4.1/lib/rack/methodoverride.rb:21:in call' /app/vendor/bundle/ruby/1.9.1/gems/rack-1.4.1/lib/rack/runtime.rb:17:incall' /app/vendor/bundle/ruby/1.9.1/gems/activesupport-3.2.3/lib/active_support/cache/strategy/local_cache.rb:72:in call' /app/vendor/bundle/ruby/1.9.1/gems/rack-1.4.1/lib/rack/lock.rb:15:incall' /app/vendor/bundle/ruby/1.9.1/gems/actionpack-3.2.3/lib/action_dispatch/middleware/static.rb:62:in call' /app/vendor/bundle/ruby/1.9.1/gems/rack-cache-1.2/lib/rack/cache/context.rb:136:inforward' /app/vendor/bundle/ruby/1.9.1/gems/rack-cache-1.2/lib/rack/cache/context.rb:245:in fetch' /app/vendor/bundle/ruby/1.9.1/gems/rack-cache-1.2/lib/rack/cache/context.rb:185:inlookup' /app/vendor/bundle/ruby/1.9.1/gems/rack-cache-1.2/lib/rack/cache/context.rb:66:in call!' /app/vendor/bundle/ruby/1.9.1/gems/rack-cache-1.2/lib/rack/cache/context.rb:51:incall' /app/vendor/bundle/ruby/1.9.1/gems/railties-3.2.3/lib/rails/engine.rb:479:in call' /app/vendor/bundle/ruby/1.9.1/gems/railties-3.2.3/lib/rails/application.rb:220:incall' /app/vendor/bundle/ruby/1.9.1/gems/rack-1.4.1/lib/rack/content_length.rb:14:in call' /app/vendor/bundle/ruby/1.9.1/gems/railties-3.2.3/lib/rails/rack/log_tailer.rb:14:incall' /app/vendor/bundle/ruby/1.9.1/gems/thin-1.3.1/lib/thin/connection.rb:80:in block in pre_process' /app/vendor/bundle/ruby/1.9.1/gems/thin-1.3.1/lib/thin/connection.rb:78:incatch' /app/vendor/bundle/ruby/1.9.1/gems/thin-1.3.1/lib/thin/connection.rb:78:in pre_process' /app/vendor/bundle/ruby/1.9.1/gems/thin-1.3.1/lib/thin/connection.rb:53:inprocess' /app/vendor/bundle/ruby/1.9.1/gems/thin-1.3.1/lib/thin/connection.rb:38:in receive_data' /app/vendor/bundle/ruby/1.9.1/gems/eventmachine-0.12.10/lib/eventmachine.rb:256:inrun_machine' /app/vendor/bundle/ruby/1.9.1/gems/eventmachine-0.12.10/lib/eventmachine.rb:256:in run' /app/vendor/bundle/ruby/1.9.1/gems/thin-1.3.1/lib/thin/backends/base.rb:61:instart' /app/vendor/bundle/ruby/1.9.1/gems/thin-1.3.1/lib/thin/server.rb:159:in start' /app/vendor/bundle/ruby/1.9.1/gems/rack-1.4.1/lib/rack/handler/thin.rb:13:inrun' /app/vendor/bundle/ruby/1.9.1/gems/rack-1.4.1/lib/rack/server.rb:265:in start' /app/vendor/bundle/ruby/1.9.1/gems/railties-3.2.3/lib/rails/commands/server.rb:70:instart' /app/vendor/bundle/ruby/1.9.1/gems/railties-3.2.3/lib/rails/commands.rb:55:in block in <top (required)>' /app/vendor/bundle/ruby/1.9.1/gems/railties-3.2.3/lib/rails/commands.rb:50:intap' /app/vendor/bundle/ruby/1.9.1/gems/railties-3.2.3/lib/rails/commands.rb:50:in `<top (required)>'

URL Params: { "oauth_token" : "DkjTqzDRtHpgjhqkloVLo8I6MeikM3lgadO3Bd5W54", "oauth_verifier" : "ytZE5xpofiduRcnTvDwuRvKZNT4eG9WqbS2tcZ9qw8", }

Relevant Session Info: "oauth" : { "linkedin" : { "callback_confirmed" : "true"} }

[mrkcor]

I have experienced the same issue and will offer a pull request fixing the problem shortly.

[dbwest]

I've been running into this as well

[neilcauldwell]

This error is occurring on our app's hand-rolled Twitter authentication implementation using the OAuth gem. Replacing the existing OAuth/SessionsController setup with Omniauth (based on the RailsCasts episode implementation) hasn't fixed the problem. In the OAuth setup there's a line in Sessions#create that deletes the request_token and request_secret from the session[:oauth] hash:

request_token = ::OAuth::RequestToken.new(consumer, session[:oauth].delete(:request_token), session[:oauth].delete(:request_secret))

However, the session[:oauth] disappears every so often by the time the user returns from Twitter, and .delete is being called on nil. It only seems to happen with Firefox or Camino.

[krzkrzkrz]

I am also experiencing this issue. Anyone have a fix for this?

[jeppeliisberg]

Hi, I'm seeing exactly the same here - curious to know if anyone solved it?

[hayesgm]

It looks like @mkremer fixed the issue (at least, the surface-level issue) with https://github.com/intridea/omniauth-oauth/pull/9, which has not been pulled into master for 11 months. It appears this library isn't being actively maintained.

[Drakula2k]

:+1:

[colmarius]

Experienced this same issue. Any possible solution? Thanks for any help.

[BobbyMcWho]

Closing as stale