Nothing else is needed, no compass initializer! Credit to comment by Ivo Dancet on: http://mentalized.net/journal/2010/04/06/heroku_rails_3_and_sass/

1) “heroku logs” from the command line will give you the production log

2) add the following to your initializers/compass.rb file to prevent SASS from trying to write to your filesystem

Sass::Plugin.options[:never_update] = true

Make sure you add it right before the line that reads:

Compass.configure_sass_plugin!

Anyway, nice video, I’ve never used the websolr addon, but I think i will give it a try today