Trying to add a JQuery library to my Rails app MultiJson::AdapterError: Did not recognize your adapter specification (cannot load such file — json/ext/parser).
http://stackoverflow.com/questions/22950020/multijson-adaptererror-rails-4-ruby-2-passenger suggests a downgrade from verson 1.9.2.
Add the following to your Gemfile:
gem 'multi_json', '1.7.8'
And then update the gem:
bundle update multi_json