The first patch release of Wheelhouse CMS is now out with a number of bugfixes and improvements, most notable of which is support for Rails 3.2.

It's worth upgrading to Rails 3.2 if only for the improved development mode reloading, which leads to significantly faster response times whilst you are building your themes and plugins.

To upgrade to Wheelhouse 1.0.1 and Rails 3.2, simply update the following versions in your Gemfile:

gem 'rails', '3.2.1'

gem 'wheelhouse'

group :assets do
  gem 'sass-rails', '~> 3.2.4'
  gem 'coffee-rails', '~> 3.2.2'
  gem 'uglifier', '~> 1.2.3'
end

Then run bundle update, restart your rails server and you're good to go.