Rails 3 - nifty_scaffold error

[docklandsstudios]

I'm following Railscast #124 Beta Invitations

I added to my gemfile gem "nifty-generators" and ran 'bundle install' and it installed v0.4.6

I then entered

$ rails generate nifty_scaffold invitation sender_id:integer recipient_email:string tok en:string sent_at:datetime new

I got this error:

Could not find generator nifty_scaffold. (note the period/full stop at the end?)

Any suggestions?

(I have Devise installed but cannot find a tutorial on integrating it with this!)

[ryanb]

Try using nifty:scaffold instead of nifty_scaffold.