Rails, OpenID and Authlogic

I've been following ryan baytes screencast #170 and adding ruby-openid, authlogic and authlogic-oid to an existing authlogic authentication system.

However, I keep getting the following stack of errors:

NameError (uninitialized constant OpenIdAuthentication::InvalidOpenId):
/Library/Ruby/Gems/1.8/gems/authlogic-oid-1.0.4/lib/authlogic_openid/session.rb:53:in openid_identifier='
/Library/Ruby/Gems/1.8/gems/authlogic-oid-1.0.4/lib/authlogic_openid/session.rb:47:incredentials='
authlogic (2.1.2) lib/authlogic/session/foundation.rb:28:in initialize'
authlogic (2.1.2) lib/authlogic/session/password.rb:140:ininitialize'
authlogic (2.1.2) lib/authlogic/session/activation.rb:48:in initialize'
authlogic (2.1.2) lib/authlogic/session/klass.rb:61:ininitialize'
authlogic (2.1.2) lib/authlogic/session/scopes.rb:79:in initialize'
app/controllers/user_sessions_controller.rb:10:innew'
app/controllers/user_sessions_controller.rb:10:in `create'

Is there anyone who's facing the same kind of problem? I'm using rails 2.3.4

I've tried binary's example app which is working perfectly well (rails 2.1.2), I've tried the code provided by Ryan Bates and it is working well too (rails 2.3.2). So, the libraries are working with previous versions of rails.

Any clues?