Nifty_generators problem

Gemfile:
gem 'nifty-generators'

Terminal
Imac$ bundle install
...
Using bundler (1.0.3)
Using nifty-generators (0.4.2) {<=Installed}
Using thor (0.14.3)
Using railties (3.0.1)
Using rails (3.0.1)
Using sqlite3-ruby (1.3.2)
Your bundle is complete! It was installed into /Imac/.rvm/gems/
ruby-1.9.2-p0

Imac$ rails g nifty_scaffold post title:string message:text new edit
destroy
Could not find generator nifty_scaffold.

Why I get this error

Try "rails g nifty:scaffold post ..."

Wolfgang

Yes.
WIth Rails3 on the way, the usual nifty-generators now work with a " : " instead of " _ ".
So, nifty_layout becomes nifty:layout, so does with nifty:authentication and nifty:scaffold.