ActiveRecord::RecordNotFound in PresentationsController#show

Couldn't find Presentation with ID=2984

Rails.root: /home/mcse/igtplus_new_data/projects/Rails/podcast3/trunk

Application Trace | Framework Trace | Full Trace
app/controllers/presentations_controller.rb:202:in `is_use_whitelist'
app/middleware/flash_session_cookie_middleware.rb:13:in `call'

Request

Parameters:

{"presentation_folder_id"=>"784",
 "locale"=>"zh_tw",
 "id"=>"2984"}

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Response

Headers:

None