I'm new to Rails, and I'm struggling with incorporating the OmniAuth-Facebook gem into my existing rails app. I've followed the railscast tutorial (http://railscasts.com/episodes/360-facebook-authentication) but when I hit /auth/facebook I get a NoSessionError exception, and it says I must provide a session to OmniAuth. I'd post code, but it's exactly like in the railscast tutorial.
It's blowing up on this line in strategy.rb in OmniAuth: raise OmniAuth::NoSessionError.new("You must provide a session to use OmniAuth.") unless env['rack.session']
Do I need to explicitly start a session?