(eval):1: syntax error, unexpected $undefined

Rails
1

On rails 3 and ruby 1.9.2, I get this error:

(eval):1: syntax error, unexpected $undefined
$#MenuBuilder:0x007fd9360719a0 = #MENUBUILDER:0X007FD9360719A0
^

Not sure where to start with this. Everything looks fine to me:

#_main_menu.html.haml

#main-menu
= menu do |m|
= m.submenu “Products” do
= m.item “Products”, Product

#builders_helper.rb
module BuildersHelper
def menu(options = {}, &block)
MenuBuilder.new(self).root(options, &block)
end
end

#menu_builder.rb

class MenuBuilder
attr_accessor :template

def initialize(template)
@template = template
end

def root(options, &block)
options[:class] = “jd_menu jd_menu_slate ui-corner-all”
content_tag :ul, capture(self, &block), options
end

def item(title, url, options = {})
content_tag :li, options do
url = ajax_route(url) unless String === url
url = dash_path + url if url.starts_with?("#")
link_to title, url
end
end

def submenu(title, options = {}, &block)
content_tag :li do
content_tag(:h6, title.t) +
content_tag(:ul, capture(self, &block), :class => “ui-corner-
all”)
end
end
end

It fails on this line for some reason:

content_tag :ul, capture(self, &block), options

thnanks for response