I'm following the instructions at: http://agilewebdevelopment.com/plugins/acts_as_taggable_on_steroids to add the tag cloud to my view:

in the controller:

class PostController < ApplicationController
   def tag_cloud
      @tags = Post.tag_counts
   end
end

I also added the tag_cloud method as a helper method in the controller

and in the view:

<% tag_cloud @tags, %w(css1 css2 css3 css4) do |tag, css_class| %>                   (line 1)
  <%= link_to tag.name, { :action => :tag, :id => tag.name }, :class => css_class %> (line2)
<% end %> (line 3)

However:

1) if I don't add the helper_method :tag_cloud in the controller I get a undefined method error for tag_cloud

2) if I do add the helper method I get: wrong number of arguments (2 for 0) on the same line 1 of my sample code above.

Suggestions?