Another issue arose tonight where launchy was screaming at me about Capybara save_and_open_page method using an old API.
WARNING: You made a call to a deprecated Launchy API. This call should be changed to 'Launchy.open( uri )'To fix this I simply updated my gem file to include what version of launchy I was using like so:
gem 'launchy', '0.4.0'
Next update bundler from the command prompt
bundle update launchy
Bingo, I'm seeing pages again...