Rails 3.1 does not precompile images that are not referenced by CSS?

Question

I get the following error:

Sprockets::Helpers::RailsHelper::AssetPaths::AssetNotPrecompiledError in Photos#edit Showing .../app/views/photos/_form.html.haml where line #49 raised: taxonomy/focus-building.jpg isn't precompiled Extracted source (around line #49): 46: = focus.code 47: .tooltip 48: %span.name= focus.name 49: = image_tag("taxonomy/focus-#{focus.code.downcase.dehumanize}.jpg") 50: / Help Overlay 51: .help 52: %a.overlay{:href=>"#", :rel=>'#help-focus'} Learn more about focus 

This image file is located in app/assets/images/taxonomy/focus-building.jpg . I ran rake assets:precompile RAILS_ENV=production , but as far as I can tell, the images are not copied to the public/assets directory.

Oddly enough, all the assets mentioned in SCSS using image-url() work fine. Why won't this image be precompiled when mentioning image_tag ?

Answer 1

If you have the asset.digest parameter enabled, this will add a hash at the end of the name, and therefore the static link to this file will no longer work, change any statically linked assets so that they use auxiliary methods.

Answer 2

I had the same problem with image_tag. I solved the problem using live compilation.

In production.rb

• config.assets.compile = true