Couldn't find file 'jquery-ui'

Use specific version of gem "jquery-rails", "~> 2.3.0" as later version of gem has deleted the ui part.

you can use gem "jquery-ui-rails" for jquery-ui . For more information please visit the git repository

To require all jQuery UI modules, add the following to your application.js:

for version 5.0 and more it has been changed. Please follow the link

application.js:

//= require jquery-ui

application.css:

/* *= require jquery-ui */

For lesser version than 5.0 we need to write below format

application.js:

//= require jquery.ui.all

Also add the jQuery UI CSS to your application.css:

application.css:

/* *= require jquery.ui.all */

Hope this could help you

javascript jquery ruby-on-rails

I think you are using new version (your version > 2.3.0) of jquery-rails.

jQuery UI has been removed from jquery-rails gem,

Take a look this commit.

If you are using ≥ jquery-rails v3.0.0 or latest version of jquery-rails

You should use jquery-ui-rails gem for using jquery UI in rails, https://github.com/joliss/jquery-ui-rails.

In your Gemfile, add:

gem 'jquery-ui-rails'

and run bundle install

Don't forget restart your server.

If you are using ≤ jquery-rails v2.3.0

see my answer here https://stackoverflow.com/a/16996710/1297435 for use gem 'jquery-rails', "~> 2.3.0"

javascript jquery ruby-on-rails

The rails 4 answer:

add to gemfile.rb:

gem 'jquery-ui-rails'

add to application.js:

//= require jquery//= require jquery-ui//= require jquery_ujs

to add a specific module:

//= require jquery//= require jquery-ui/yourmodulename//= require jquery_ujs

I'm not sure if restarting your server is explicitly required but it never hurts anything.

CodeHunter