Issues with Active Scaffold and Rails 2.1, Solved
If you are looking to upgrade to Rails 2.1 and you are using Active Scaffold , be aware it still has a few rough edges. Make sure you install the Rails 2.1 branch of Active Scaffold: git clone git://github.com/activescaffold/active_scaffold cd active_scaffold git branch -r (just lists the branches) git checkout origin/rails-2.1 (Check out the full thread for Rails 2.1 and Active Scaffold compatibility ) Second, I had to patch vendor/plugins/active_scaffold/lib/extensions/generic_view_path.rb . On line 53, make it look like this: if !@template.controller.is_a?(ActionMailer::Base) && @template.controller.class.uses_active_scaffold? I had to add !@template.controller.is_a?(ActionMailer::Base) && All my tests are now passing! I still love Active Scaffold, even though it's a bit behind the times.