ActionController::InvalidAuthenticityToken

Ruby noob here.

Just installed Rails 2.0, and am having trouble with updating DB
tables, using the ApplicationController.

The controller was generated using the command:
rake db:migrate
ruby script/generate controller Story index

My ApplicationController file looks like:

class StoryController < ApplicationController
            protect_from_forgery :only =>
[:create, :update, :destroy]
            scaffold :story
      #def index
            #@current_time = Time.now
            #@story = Story.find_by_name('arc')
       #end
end

But when I go to the browser to update the file I get:

ActionController::InvalidAuthenticityToken in StoryController#create
ActionController::InvalidAuthenticityToken

The tmp/sessions directory is empty and the environment.rb file has:

  config.action_controller.session = {
    :session_key => '_digg_session',
    :secret =>
'cc86e984ae6e2b376f9328a73f4df2555a9f96970553b2fa4bb17cc04192c64b24a86c166aa69392100586b0ebd8c6715839bc8a3576b549b13d3157f615ddba'
  }

The trace is below:

/usr/local/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/
action_controller/request_forgery_protection.rb:79:in
`verify_authenticity_token'
/usr/local/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/
action_controller/filters.rb:469:in `send!'
/usr/local/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/
action_controller/filters.rb:469:in `call'
/usr/local/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/
action_controller/filters.rb:441:in `run'
/usr/local/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/
action_controller/filters.rb:716:in `run_before_filters'
/usr/local/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/
action_controller/filters.rb:695:in `call_filters'
/usr/local/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/
action_controller/filters.rb:689:in `perform_action_without_benchmark'
/usr/local/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/
action_controller/benchmarking.rb:68:in
`perform_action_without_rescue'
/usr/local/lib/ruby/1.8/benchmark.rb:293:in `measure'
/usr/local/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/
action_controller/benchmarking.rb:68:in
`perform_action_without_rescue'
/usr/local/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/
action_controller/rescue.rb:199:in `perform_action_without_caching'
/usr/local/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/
action_controller/caching.rb:678:in `perform_action'
/usr/local/lib/ruby/gems/1.8/gems/activerecord-2.0.2/lib/active_record/
connection_adapters/abstract/query_cache.rb:33:in `cache'
/usr/local/lib/ruby/gems/1.8/gems/activerecord-2.0.2/lib/active_record/
query_cache.rb:8:in `cache'
/usr/local/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/
action_controller/caching.rb:677:in `perform_action'
/usr/local/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/
action_controller/base.rb:524:in `send'
/usr/local/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/
action_controller/base.rb:524:in `process_without_filters'
/usr/local/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/
action_controller/filters.rb:685:in
`process_without_session_management_support'
/usr/local/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/
action_controller/session_management.rb:123:in `process'
/usr/local/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/
action_controller/base.rb:388:in `process'
/usr/local/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/
action_controller/dispatcher.rb:171:in `handle_request'
/usr/local/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/
action_controller/dispatcher.rb:115:in `dispatch'
/usr/local/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/
action_controller/dispatcher.rb:126:in `dispatch_cgi'
/usr/local/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/
action_controller/dispatcher.rb:9:in `dispatch'
/usr/local/lib/ruby/gems/1.8/gems/rails-2.0.2/lib/webrick_server.rb:
112:in `handle_dispatch'
/usr/local/lib/ruby/gems/1.8/gems/rails-2.0.2/lib/webrick_server.rb:
78:in `service'
/usr/local/lib/ruby/1.8/webrick/httpserver.rb:104:in `service'
/usr/local/lib/ruby/1.8/webrick/httpserver.rb:65:in `run'
/usr/local/lib/ruby/1.8/webrick/server.rb:173:in `start_thread'
/usr/local/lib/ruby/1.8/webrick/server.rb:162:in `start'
/usr/local/lib/ruby/1.8/webrick/server.rb:162:in `start_thread'
/usr/local/lib/ruby/1.8/webrick/server.rb:95:in `start'
/usr/local/lib/ruby/1.8/webrick/server.rb:92:in `each'
/usr/local/lib/ruby/1.8/webrick/server.rb:92:in `start'
/usr/local/lib/ruby/1.8/webrick/server.rb:23:in `start'
/usr/local/lib/ruby/1.8/webrick/server.rb:82:in `start'
/usr/local/lib/ruby/gems/1.8/gems/rails-2.0.2/lib/webrick_server.rb:
62:in `dispatch'
/usr/local/lib/ruby/gems/1.8/gems/rails-2.0.2/lib/commands/servers/
webrick.rb:66
/usr/local/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:27:in
`gem_original_require'
/usr/local/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:27:in
`require'
/usr/local/lib/ruby/gems/1.8/gems/activesupport-2.0.2/lib/
active_support/dependencies.rb:496:in `require'
/usr/local/lib/ruby/gems/1.8/gems/activesupport-2.0.2/lib/
active_support/dependencies.rb:342:in `new_constants_in'
/usr/local/lib/ruby/gems/1.8/gems/activesupport-2.0.2/lib/
active_support/dependencies.rb:496:in `require'
/usr/local/lib/ruby/gems/1.8/gems/rails-2.0.2/lib/commands/server.rb:
39
/usr/local/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:27:in
`gem_original_require'
/usr/local/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:27:in
`require'
script/server:3

/usr/local/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/
action_controller/request_forgery_protection.rb:79:in
`verify_authenticity_token'
/usr/local/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/
action_controller/filters.rb:469:in `send!'
/usr/local/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/
action_controller/filters.rb:469:in `call'
/usr/local/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/
action_controller/filters.rb:441:in `run'
/usr/local/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/
action_controller/filters.rb:716:in `run_before_filters'
/usr/local/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/
action_controller/filters.rb:695:in `call_filters'
/usr/local/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/
action_controller/filters.rb:689:in `perform_action_without_benchmark'
/usr/local/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/
action_controller/benchmarking.rb:68:in
`perform_action_without_rescue'
/usr/local/lib/ruby/1.8/benchmark.rb:293:in `measure'
/usr/local/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/
action_controller/benchmarking.rb:68:in
`perform_action_without_rescue'
/usr/local/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/
action_controller/rescue.rb:199:in `perform_action_without_caching'
/usr/local/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/
action_controller/caching.rb:678:in `perform_action'
/usr/local/lib/ruby/gems/1.8/gems/activerecord-2.0.2/lib/active_record/
connection_adapters/abstract/query_cache.rb:33:in `cache'
/usr/local/lib/ruby/gems/1.8/gems/activerecord-2.0.2/lib/active_record/
query_cache.rb:8:in `cache'
/usr/local/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/
action_controller/caching.rb:677:in `perform_action'
/usr/local/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/
action_controller/base.rb:524:in `send'
/usr/local/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/
action_controller/base.rb:524:in `process_without_filters'
/usr/local/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/
action_controller/filters.rb:685:in
`process_without_session_management_support'
/usr/local/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/
action_controller/session_management.rb:123:in `process'
/usr/local/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/
action_controller/base.rb:388:in `process'
/usr/local/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/
action_controller/dispatcher.rb:171:in `handle_request'
/usr/local/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/
action_controller/dispatcher.rb:115:in `dispatch'
/usr/local/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/
action_controller/dispatcher.rb:126:in `dispatch_cgi'
/usr/local/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/
action_controller/dispatcher.rb:9:in `dispatch'
/usr/local/lib/ruby/gems/1.8/gems/rails-2.0.2/lib/webrick_server.rb:
112:in `handle_dispatch'
/usr/local/lib/ruby/gems/1.8/gems/rails-2.0.2/lib/webrick_server.rb:
78:in `service'
/usr/local/lib/ruby/1.8/webrick/httpserver.rb:104:in `service'
/usr/local/lib/ruby/1.8/webrick/httpserver.rb:65:in `run'
/usr/local/lib/ruby/1.8/webrick/server.rb:173:in `start_thread'
/usr/local/lib/ruby/1.8/webrick/server.rb:162:in `start'
/usr/local/lib/ruby/1.8/webrick/server.rb:162:in `start_thread'
/usr/local/lib/ruby/1.8/webrick/server.rb:95:in `start'
/usr/local/lib/ruby/1.8/webrick/server.rb:92:in `each'
/usr/local/lib/ruby/1.8/webrick/server.rb:92:in `start'
/usr/local/lib/ruby/1.8/webrick/server.rb:23:in `start'
/usr/local/lib/ruby/1.8/webrick/server.rb:82:in `start'
/usr/local/lib/ruby/gems/1.8/gems/rails-2.0.2/lib/webrick_server.rb:
62:in `dispatch'
/usr/local/lib/ruby/gems/1.8/gems/rails-2.0.2/lib/commands/servers/
webrick.rb:66
/usr/local/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:27:in
`gem_original_require'
/usr/local/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:27:in
`require'
/usr/local/lib/ruby/gems/1.8/gems/activesupport-2.0.2/lib/
active_support/dependencies.rb:496:in `require'
/usr/local/lib/ruby/gems/1.8/gems/activesupport-2.0.2/lib/
active_support/dependencies.rb:342:in `new_constants_in'
/usr/local/lib/ruby/gems/1.8/gems/activesupport-2.0.2/lib/
active_support/dependencies.rb:496:in `require'
/usr/local/lib/ruby/gems/1.8/gems/rails-2.0.2/lib/commands/server.rb:
39
/usr/local/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:27:in
`gem_original_require'
/usr/local/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:27:in
`require'
script/server:3

Request

Parameters:

{"commit"=>"Create story",
"story"=>{"name"=>"Digg",
"updated_at(1i)"=>"2008",
"created_at(1i)"=>"2008",
"updated_at(2i)"=>"1",
"created_at(2i)"=>"1",
"updated_at(3i)"=>"6",
"created_at(3i)"=>"6",
"updated_at(4i)"=>"01",
"created_at(4i)"=>"01",
"updated_at(5i)"=>"55",
"created_at(5i)"=>"55",
"link"=>"www.digg.com"}}

Show session dump