Cannot precompile assets

[algritz]

$ rake assets:precompile RAILS_ENV=production
c:/Ruby193/bin/ruby.exe c:/Ruby193/bin/rake assets:precompile:all RAILS_ENV=production RAILS_GROUPS=ass
rake aborted!
undefined method `rate_path' for #Module:0x39accc8
(in C:/MYAPP/app/assets/javascripts/letsrate.js.erb)

which is this line =>
$.post('<%= Rails.application.class.routes.url_helpers.rate_path %>',

Rails 3.2.6
Ruby 1.9.3
Windows 7
letsrate 1.0.7

You can check my repository:

https://github.com/algritz/Livre_recette_v3

[algritz]

I found out that it could be fixed by using the following option in my application.rb file

config.assets.initialize_on_precompile = true

found the solution there:
refinery/refinerycms#1751

[gsanchezd]

In short:
if you are using heroku just change
config.assets.initialize_on_precompile = true (on apllication.rb)

and then in your project path
heroku labs:enable user-env-compile -a appname

[garyfoster]

Changing config.assets.initialize_on_precompile to true could cause other side affects, see https://devcenter.heroku.com/articles/rails-asset-pipeline#assets-precompile-failures for details. Another quick hack would be to change the generated letsrate.js.erb to letsrate.js and replace the erb code for the rate_path with the hardcoded path "/rate".