The rails-3.0.1 release excluded a change that I had naively expected to be included. This upgrade is only necessary if you write view specs and are upgrading to rails-3.0.1. To upgrade, all you need to do is change your Gemfile to read: gem "rspec-rails", "2.0.1" And then run bundle update rspec-rails ## Release Notes ### 2.0.1 / 2010-10-15 [full changelog](http://github.com/rspec/rspec-rails/compare/v2.0.0...v2.0.1) * Enhancements * Add option to not generate request spec (--skip-request-specs) * Bug fixes * Updated the mock_[model] method generated in controller specs so it adds any stubs submitted each time it is called. * Fixed bug where view assigns weren''t making it to the view in view specs in Rails-3.0.1. (Emanuele Vicentini) Cheers, David