sass-rails helpers “image-url”, “asset-url” are not working in rails 3.2.1

Question

I am on 3.2.1, with sass-rails-3.2.4 and sass-3.1.15...

The documentation for the asset pipeline says:

asset-url(\"rails.png\", image) becomes url(/a         


        

Answer 1

When I hit this problem, it was because I had not included the css file in the asset pipeline for pre-compilation. As a result, it would be generated at runtime. Because the sass-rails gem is commonly in the :assets group, the helpers are unavailable when generating css files at runtime.

Try adding the following line to your application.rb (or production.rb):

config.assets.precompile += %w( public/omg.css )

I found the fix on this post including a gotcha around naming the files when adding them to the precompiler.