unitialized constant

I installed this plugin http://github.com/loudpixel/highcharts-rails
and I put this code in my controller:

  def panels
    @ui_panels = Highchart.pie({
    :chart => {
          :renderTo => "pie-chart-container",
          :margin => [50, 30, 0, 30]
        },
        :credits => {
          :enabled => true,
          :href => 'http://marketshare.hitslink.com/browser
px?qprid=3',
          :text => 'Data provided by NETMARKETSHARE'
        },
        :plotOptions => {
          :pie => {
            :dataLabels => {
              :formatter => pie_label_formatter,
              :style => {
                :textShadow => '#000000 1px 1px 2px'
              }
            }
          }
        },
      :series => [
            {
                :type => 'pie',
                :data => browser_data
            }
        ],
        :subtitle => {
          :text => 'January 2010'
        },
        :title => {
          :text => 'Browser Market Share'
        },
        :tooltip => {
          :formatter => pie_tooltip_formatter
        },
    })

  end

Yet, I get this error:
NameError in DashboardController#panels

uninitialized constant DashboardController::Highchart

Any suggestions? thanks.

uninitialized constant DashboardController::Highchart

Any suggestions? thanks.

Are you able to go into the console and just type Highchart ? See if
it's actually getting loaded into your app. If so, have you tried using
the scope operator :: in front of it?

~Jeremy

Did you run the rake task after you installed the plugin?

David wrote:

Did you run the rake task after you installed the plugin?

Yeah, I ran
rake highcharts_rails:install
and then
rake db:migrate

in console, I get this:

HighChart

NameError: uninitialized constant HighChart
  from
/Library/Ruby/Gems/1.8/gems/activesupport-2.3.4/lib/active_support/dependencies.rb:443:in
`load_missing_constant'
  from
/Library/Ruby/Gems/1.8/gems/activesupport-2.3.4/lib/active_support/dependencies.rb:80:in
`const_missing'
  from
/Library/Ruby/Gems/1.8/gems/activesupport-2.3.4/lib/active_support/dependencies.rb:92:in
`const_missing'
  from (irb):4