Rails stopped routing http requests the morning after everything was working fine. I was running demo exercises from the Agile Rails book and didn't seem to do anything that could have messed up the installation. Downloading and symlinking to the books own app code didn't fix the problem.

"no route found to match "/store" with {:method=>:get}"

attempting to debug:

>> rs = ActionController::Routing::Routes
>> rs.recognize_path "/store"
=> {:controller=>"store", :action=>"index"}

routes.rb seems fine:

ActionController::Routing::Routes.draw do |map|
map.connect ':controller/:action/:id.:format'
map.connect ':controller/:action/:id'
end

Everything looks good where is the problem? I googled and found a post pointing out spurious routing problems in Rails 1.2.3 and a suggestion to change boot.rb to remedy it:

root_path = Pathname.new(root_path).cleanpath(true).to_s

to

root_path = Pathname.new(root_path).cleanpath(true).realpath().to_s

That suggestion did not work for me. Desperate to get my Rails show back on the road, I did the obvious:

gem uninstall rails
gem install rails

Bingo!