Q:

How to use Sprockets Rails plugin on Heroku?

I just deployed my Rails app to Heroku, but the Javascripts that were using Sprockets plugin don't work.
I understood that, because my Heroku app is read-only, Sprockets won't work. I've found this sprockets_on_heroku plugin that should do the work, but I don't really get how to use it :

I added config.gem sprockets in config/environment.rb
I added sprockets in my .gems file
I pushed these on Heroku and Sprockets was successfully installed
I locally  ran script/plugin install git://github.com/jeffrydegrande/sprockets_on_heroku.git and the plugin was successfully installed

Nothing changed on Heroku, so I tried to install the plugin on Heroku with heroku plugins:install git://github.com/jeffrydegrande/sprockets_on_heroku.git, which returned sprockets_on_heroku installedbut then, a heroku restartor a heroku pluginscommand would return this:

~/.heroku/plugins/sprockets_on_heroku/init.rb:1: uninitialized constant ActionController (NameError)
from /opt/local/lib/ruby/gems/1.8/gems/heroku-1.8.3/bin/../lib/heroku/plugin.rb:25:in `load'
from /opt/local/lib/ruby/gems/1.8/gems/heroku-1.8.3/bin/../lib/heroku/plugin.rb:25:in `load!'
from /opt/local/lib/ruby/gems/1.8/gems/heroku-1.8.3/bin/../lib/heroku/plugin.rb:22:in `each'
from /opt/local/lib/ruby/gems/1.8/gems/heroku-1.8.3/bin/../lib/heroku/plugin.rb:22:in `load!'
from /opt/local/lib/ruby/gems/1.8/gems/heroku-1.8.3/bin/../lib/heroku/command.rb:14:in `run'
from /opt/local/lib/ruby/gems/1.8/gems/heroku-1.8.3/bin/heroku:14
from /opt/local/bin/heroku:19:in `load'
from /opt/local/bin/heroku:19

What should I do?
Kevin

A:

Sprockets on Heroku's author Jeffry Degrande answered my e-mail. The only thing I should have done is to git push heroku after installing the plugin so that the files are deployed to Heroku. In short:

Add config.gem sprockets in config/environment.rb
Add sprockets in .gems file
Run script/plugin install git://github.com/jeffrydegrande/sprockets_on_heroku.git
Push the changes to Heroku

