NoMethodError in Solutions#show

Showing c:/algo_v2/app/views/shared/_download_file.html.erb where line #2 raised:

undefined method `pdf_de' for #<Document:0x0000002bd9cf08>

Trace of template inclusion: app/views/shared/_downloads_set.html.erb, app/views/shared/_downloads.html.erb, app/views/solutions/show.html.erb

Rails.root: c:/algo_v2

Application Trace | Framework Trace | Full Trace

Request

Parameters:

{"locale"=>"de",
 "id"=>"intelligent-health-monitor"}

Response

Headers:

None