NoMethodError in Display#list_styles

Showing /var/www/scoutdfw/app/views/display/list_styles.html.erb where line #29 raised:

undefined method `filename' for nil:NilClass

Extracted source (around line #29):

26: 
27: <div id="container">
28: 
29: <% composite = @view.filename.sub(/L\./, "G\.") %>
30: <img class="slidek" src="/images/<%= composite %>" alt="<%= composite %>" name="slidek"/>
31: <div id="slidek_caption"><%= @view.name %></div>
32: 

Rails.root: /var/www/scoutdfw

Application Trace | Framework Trace | Full Trace
app/views/display/list_styles.html.erb:29:in `_app_views_display_list_styles_html_erb__3745770816165887090_70156292187840_3426950593100188111'

Request

Parameters:

{"style"=>"All-Newest%20First"}

Show session dump

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Response

Headers:

None