OpenID Authentication using AuthLogic

Hi, I am trying to implement openid authentication using authlogic. I
have installed the open_id_authentication in the process but when I
entered

rake open_id_authentication:db:create --trace
I get the following error

(in /Users/felix/login)
rake aborted!
Don’t know how to build task ‘open_id_authentication:db:create’
/usr/local/lib/ruby/gems/1.9.1/gems/rake-0.8.7/lib/rake.rb:1728:in
[]' /usr/local/lib/ruby/gems/1.9.1/gems/rake-0.8.7/lib/rake.rb:2050:ininvoke_task’
/usr/local/lib/ruby/gems/1.9.1/gems/rake-0.8.7/lib/rake.rb:2029:in
block (2 levels) in top_level' /usr/local/lib/ruby/gems/1.9.1/gems/rake-0.8.7/lib/rake.rb:2029:ineach’
/usr/local/lib/ruby/gems/1.9.1/gems/rake-0.8.7/lib/rake.rb:2029:in
block in top_level' /usr/local/lib/ruby/gems/1.9.1/gems/rake-0.8.7/lib/rake.rb:2068:instandard_exception_handling’
/usr/local/lib/ruby/gems/1.9.1/gems/rake-0.8.7/lib/rake.rb:2023:in
top_level' /usr/local/lib/ruby/gems/1.9.1/gems/rake-0.8.7/lib/rake.rb:2001:inblock in run’
/usr/local/lib/ruby/gems/1.9.1/gems/rake-0.8.7/lib/rake.rb:2068:in
standard_exception_handling' /usr/local/lib/ruby/gems/1.9.1/gems/rake-0.8.7/lib/rake.rb:1998:inrun’
/usr/local/lib/ruby/gems/1.9.1/gems/rake-0.8.7/bin/rake:31:in <top (required)>' /usr/local/bin/rake:19:inload’
/usr/local/bin/rake:19:in `’

Can someone tell what am i doing incorrectly

Thanks