Version issue with First App in Hartl Tutorial

I am running Windows 8 and I received the same error message as that
reported by Tim Escher.

I was also following the printed book. I have the second edition, and on
page 21 the book (twice, actually) specifies version '2.0.0' for
jquery-rails. When I ran "bundle install" (after editing the Gemfile for
first_app) I received this error message:

"Could not find gem 'jquery-rails (= 2.0.0) x86-mingw32' in the gems
available on this machine."

But when I changed the jquery-rails version to 2.0.2 everything worked