render problems in upgrading from 2.1.2 to 2.3.2

My custom layout file for the AdminController in in views/layouts/admin.html.erb and has the following code:

<% content_for :secondary_nav do %>   <%= sub_navigation [:prospect_statuses, :client_statuses, :business_statuses, :discounts, :features, :links, :user_types] %> <% end %> <%= render "layouts/application" %>

This works fine in Rails 2.1.2. However, in Rails 2.3.2, I get the following error:

Showing app/views/layouts/admin.html.erb where line #4 raised:

Missing layout layouts/_application in view path app/views

Extracted source (around line #4):

1: <% content_for :secondary_nav do %> 2: <%= sub_navigation [:prospect_statuses, :client_statuses, :business_statuses, :discounts, :features, :links, :user_types] %> 3: <% end %> 4: <%= render "layouts/application" %>

Can't figure this out. Please help.

Thanks.

Bharat

Found the solution here:

http://ryandaigle.com/articles/2008/11/20/what-s-new-in-edge-rails-render-stops-being-high-maintenance

Changed the 4th line to:

<%= render :file => "layouts/application" %>

That solved the problem. Please disregard. Apologies for the trouble.

Bharat