In Rails 4 Load Error - Githubissues

bundle install works fine but when I am restarting rails server getting following error:

actionmailer (4.2.5.1)
- actionpack (4.2.5.1)
- actionview (4.2.5.1)
- activeadmin (1.0.0)
- activejob (4.2.5.1)
- activemodel (4.2.5.1)
- activerecord (4.2.5.1)
- activesupport (4.2.5.1)
- addressable (2.5.1)
- airbrussh (1.2.0)
- arbre (1.1.1)
- arel (6.0.4)
- autoprefixer-rails (6.7.7.2)
- bcrypt (3.1.11)
- binding_of_caller (0.7.2)
- bootstrap-sass (3.3.7)
- bourbon (4.3.4)
- builder (3.2.3)
- bundler (1.14.6)
- byebug (9.0.6)
- capistrano (3.8.1)
- capistrano-bundler (1.2.0)
- capistrano-rails (1.2.3)
- chronic (0.10.2)
- climate_control (0.1.0)
- cocaine (0.5.8)
- coffee-rails (4.1.1)
- coffee-script (2.4.1)
- coffee-script-source (1.12.2)
- completeness-fu (0.6.0)
- concurrent-ruby (1.0.5)
- cookiejar (0.3.3)
- daemons (1.2.4)
- debug_inspector (0.0.2)
- devise (4.2.1)
- dropbox-sdk (1.6.5)
- em-http-request (1.1.5)
- em-socksify (0.3.1)
- erubis (2.7.0)
- eventmachine (1.0.9.1)
- execjs (2.7.0)
- faraday (0.11.0)
- faye (1.1.2)
- faye-rails (2.0.3)
- faye-websocket (0.10.7)
- figaro (1.1.1)
- font-awesome-sass (4.5.0)
- foreman (0.84.0)
- formtastic (3.1.5)
- formtastic_i18n (0.6.0)
- geocoder (1.4.3)
- globalid (0.4.0)
- haml (4.0.7)
- haml-rails (1.0.0)
- has_scope (0.7.0)
- hashie (3.5.5)
- html2haml (2.1.0)
- http_parser.rb (0.6.0)
- httparty (0.14.0)
- hubspot-ruby (0.2.1)
- i18n (0.8.1)
- inherited_resources (1.7.1)
- jbuilder (2.6.3)
- jquery-rails (4.3.1)
- jquery-raty-rails (0.0.2 d36753c)
- jquery-ui-rails (6.0.1)
- json (1.8.6)
- jwt (1.5.6)
- kaminari (1.0.1)
- kaminari-actionview (1.0.1)
- kaminari-activerecord (1.0.1)
- kaminari-core (1.0.1)
- loofah (2.0.3)
- mail (2.6.4)
- mime-types (3.1)
- mime-types-data (3.2016.0521)
- mimemagic (0.3.0)
- mini_portile2 (2.1.0)
- minitest (5.10.1)
- multi_json (1.12.1)
- multi_xml (0.6.0)
- multipart-post (2.0.0)
- mysql2 (0.4.5)
- net-scp (1.2.1)
- net-ssh (4.1.0)
- nokogiri (1.7.1)
- oauth (0.5.1)
- oauth2 (1.3.1)
- omniauth (1.6.1)
- omniauth-facebook (4.0.0)
- omniauth-google-oauth2 (0.4.1)
- omniauth-linkedin (0.2.0)
- omniauth-oauth (1.1.0)
- omniauth-oauth2 (1.4.0)
- orm_adapter (0.5.0)
- paperclip (4.3.7)
- paperclip-dropbox (1.3.2)
- pg (0.20.0)
- polyamorous (1.3.1)
- private_pub (1.0.3)
- public_activity (1.5.0)
- public_suffix (2.0.5)
- rack (1.6.5)
- rack-test (0.6.3)
- rails (4.2.5.1)
- rails-deprecated_sanitizer (1.0.3)
- rails-dom-testing (1.0.8)
- rails-html-sanitizer (1.0.3)
- rails_12factor (0.0.3)
- rails_serve_static_assets (0.0.5)
- rails_stdout_logging (0.0.5)
- railties (4.2.5.1)
- rake (12.0.0)
- ransack (1.8.2)
- rdoc (4.3.0)
- redis (3.3.3)
- responders (2.3.0)
- ruby_parser (3.9.0)
- sass (3.4.23)
- sass-rails (5.0.6)
- sdoc (0.4.2)
- sexp_processor (4.9.0)
- simple_form (3.4.0)
- spring (2.0.1)
- sprockets (3.7.1)
- sprockets-rails (3.2.0)
- sshkit (1.13.1)
- thin (1.7.0)
- thor (0.19.4)
- thread_safe (0.3.6)
- tilt (2.0.7)
- toastr-rails (1.0.3)
- turbolinks (5.0.1)
- turbolinks-source (5.0.0)
- tzinfo (1.2.3)
- uglifier (3.2.0)
- warden (1.2.7)
- web-console (2.3.0)
- websocket-driver (0.6.5)
- websocket-extensions (0.1.2)
- whenever (0.9.7)
- wicked (1.3.1)

cannot load such file -- active_support/core_ext/class/inheritable_attributes (LoadError) from /home/yuva/.rvm/gems/ruby-2.3.3/gems/activesupport-4.2.5.1/lib/active_support/dependencies.rb:274:in block in require' from /home/yuva/.rvm/gems/ruby-2.3.3/gems/activesupport-4.2.5.1/lib/active_support/dependencies.rb:240:inload_dependency'

joshk / completeness-fu

In Rails 4 Load Error #12