Sprockets::FileNotFound: couldn't find file 'jquery-ui/widgets/draggable'

[João Bordalo]

Hi !

I'm trying to deploy my 4.2.7 rails app with nginx and unicorn.

when I precompile the assets ( $ bundle exec rake assets:precompile)

I get the following error:

rake aborted!

Sprockets::FileNotFound: couldn't find file 'jquery-ui/widgets/draggable' with type 'application/javascript'

Checked in these paths: 

  /opt/project-control/app/assets/images

  /opt/project-control/app/assets/javascripts

  /opt/project-control/app/assets/stylesheets

  /opt/project-control/vendor/assets/fonts

  /opt/project-control/vendor/assets/javascripts

  /opt/project-control/vendor/assets/stylesheets

  /home/clouduser/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/jquery-rails-4.3.1/vendor/assets/javascripts

/opt/project-control/app/assets/javascripts/application.js:15

/home/clouduser/.rbenv/versions/2.3.1/bin/bundle:23:in `load'

/home/clouduser/.rbenv/versions/2.3.1/bin/bundle:23:in `<main>'

Tasks: TOP => assets:precompile

Any thoughts? 

Thank you in advance!

João Bordalo