Hi!
I set SiController file to utf-8 encoding and rails gave me this error.
I stumbled on an article about converting rails app to use utf-8, but I didn't try it, because I created a single controller for testing "rails new gold", "rails generate controller Si index", "rails server", went to localhost:3000 and it works if controller file is encoded in ansi, and doesn't work if encoded in utf-8. The article