Ruby on Rails 4.2.2 ArgumentError (wrong number of arguments (2 for 1)) -

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this question has answer here:

i've cleaned out of gems due issue , tried reinstall via following: 

$ gem install rails $ rails new myproject $ cd myproject $ rails server

while above seems pretty straightforward new rails installs, got following 500 error:

$ rails server => booting webrick => rails 4.2.2 application starting in development on http://localhost:3000 => run 'rails server -h' more startup option' => ctrl-c shutdown server [2015-06-18 16:44:22] info  webrick 1.3.1 [2015-06-18 16:44:22] info  ruby 2.2.0 (2014-12-25) [x86_64-darwin14] [2015-06-18 16:44:22] info  webrick::httpserver#start: pid=60434 port=3000   started "/" ::1 @ 2015-06-18 16:44:27 -0400  argumenterror (wrong number of arguments (2 1)):   actionpack (4.2.2) lib/action_dispatch/http/request.rb:338:in 'parse_query'   rack (1.6.3) lib/rack/request.rb:191:in 'get'   actionpack (4.2.2) lib/action_dispatch/http/request.rb:300:in 'get'   actionpack (4.2.2) lib/action_dispatch/http/parameters.rb:14:in 'parameters'   actionpack (4.2.2) lib/action_dispatch/http/filter_parameters.rb:37:in 'filtered_parameters'   actionpack (4.2.2) lib/action_controller/metal/instrumentation.rb:22:in 'process_action'   actionpack (4.2.2) lib/action_controller/metal/params_wrapper.rb:250:in 'process_action'   activerecord (4.2.2) lib/active_record/railties/controller_runtime.rb:18:in 'process_action'   actionpack (4.2.2) lib/abstract_controller/base.rb:137:in 'process'   actionview (4.2.2) lib/action_view/rendering.rb:30:in 'process'   actionpack (4.2.2) lib/action_controller/metal.rb:196:in 'dispatch'   actionpack (4.2.2) lib/action_controller/metal/rack_delegation.rb:13:in 'dispatch'   actionpack (4.2.2) lib/action_controller/metal.rb:237:in 'block in action'   actionpack (4.2.2) lib/action_dispatch/routing/route_set.rb:74:in 'call'   actionpack (4.2.2) lib/action_dispatch/routing/route_set.rb:74:in 'dispatch'   actionpack (4.2.2) lib/action_dispatch/routing/route_set.rb:43:in 'serve'   actionpack (4.2.2) lib/action_dispatch/journey/router.rb:43:in 'block in serve'   actionpack (4.2.2) lib/action_dispatch/journey/router.rb:30:in 'each'   actionpack (4.2.2) lib/action_dispatch/journey/router.rb:30:in 'serve'   actionpack (4.2.2) lib/action_dispatch/routing/route_set.rb:819:in 'call'   rack (1.6.3) lib/rack/etag.rb:24:in 'call'   rack (1.6.3) lib/rack/conditionalget.rb:25:in 'call'   rack (1.6.3) lib/rack/head.rb:13:in 'call'   actionpack (4.2.2) lib/action_dispatch/middleware/params_parser.rb:27:in 'call'   actionpack (4.2.2) lib/action_dispatch/middleware/flash.rb:260:in 'call'   rack (1.6.3) lib/rack/session/abstract/id.rb:225:in 'context'   rack (1.6.3) lib/rack/session/abstract/id.rb:220:in 'call'   actionpack (4.2.2) lib/action_dispatch/middleware/cookies.rb:560:in 'call'   activerecord (4.2.2) lib/active_record/query_cache.rb:36:in 'call'   activerecord (4.2.2) lib/active_record/connection_adapters/abstract/connection_pool.rb:649:in 'call'   activerecord (4.2.2) lib/active_record/migration.rb:378:in 'call'   actionpack (4.2.2) lib/action_dispatch/middleware/callbacks.rb:29:in 'block in call'   activesupport (4.2.2) lib/active_support/callbacks.rb:88:in 'call'   activesupport (4.2.2) lib/active_support/callbacks.rb:88:in '_run_callbacks'   activesupport (4.2.2) lib/active_support/callbacks.rb:776:in '_run_call_callbacks'   activesupport (4.2.2) lib/active_support/callbacks.rb:81:in 'run_callbacks'   actionpack (4.2.2) lib/action_dispatch/middleware/callbacks.rb:27:in 'call'   actionpack (4.2.2) lib/action_dispatch/middleware/reloader.rb:73:in 'call'   actionpack (4.2.2) lib/action_dispatch/middleware/remote_ip.rb:78:in 'call'   actionpack (4.2.2) lib/action_dispatch/middleware/debug_exceptions.rb:17:in 'call'   web-console (2.1.3) lib/web_console/middleware.rb:37:in 'call'   actionpack (4.2.2) lib/action_dispatch/middleware/show_exceptions.rb:30:in 'call'   railties (4.2.2) lib/rails/rack/logger.rb:38:in 'call_app'   railties (4.2.2) lib/rails/rack/logger.rb:20:in 'block in call'   activesupport (4.2.2) lib/active_support/tagged_logging.rb:68:in 'block in tagged'   activesupport (4.2.2) lib/active_support/tagged_logging.rb:26:in 'tagged'   activesupport (4.2.2) lib/active_support/tagged_logging.rb:68:in 'tagged'   railties (4.2.2) lib/rails/rack/logger.rb:20:in 'call'   actionpack (4.2.2) lib/action_dispatch/middleware/request_id.rb:21:in 'call'   rack (1.6.3) lib/rack/methodoverride.rb:22:in 'call'   rack (1.6.3) lib/rack/runtime.rb:18:in 'call'   activesupport (4.2.2) lib/active_support/cache/strategy/local_cache_middleware.rb:28:in 'call'   rack (1.6.3) lib/rack/lock.rb:17:in 'call'   actionpack (4.2.2) lib/action_dispatch/middleware/static.rb:113:in 'call'   rack (1.6.3) lib/rack/sendfile.rb:113:in 'call'   railties (4.2.2) lib/rails/engine.rb:518:in 'call'   railties (4.2.2) lib/rails/application.rb:164:in 'call'   rack (1.6.3) lib/rack/lock.rb:17:in 'call'   rack (1.6.3) lib/rack/content_length.rb:15:in 'call'   rack (1.6.3) lib/rack/handler/webrick.rb:88:in 'service'   ~/.rbenv/versions/2.2.0/lib/ruby/2.2.0/webrick/httpserver.rb:138:in 'service'   ~/.rbenv/versions/2.2.0/lib/ruby/2.2.0/webrick/httpserver.rb:94:in 'run'   ~/.rbenv/versions/2.2.0/lib/ruby/2.2.0/webrick/server.rb:294:in 'block in start_thread'

what am-i missing?

the log mentions version 1.6.3 of rack. try adding gem 'rack', '1.6.2' gemfile , running bundle update rack command line. restart server. seems work, now.


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