Menu
I've been following along Michael Hartl's excellent RoR Tutorial, but I'm using RoR 3.1. I am a newbie to RoR 3.1 and need help related to assets pipeline. Here is my problem:
Before continuing to section 5.3, I thought I'd like to push to Heroku and see how things develop. To my surprise "GET /" results in error 500. Everything went OK in my local-development-environment. I then tried running my local sample_app under production-environment (rails s -e production). Same result, error 500:
Sprockets::Helpers::RailsHelper::AssetPaths::AssetNotPrecompiledError in Pages#home
Showing /Users/john/Projects/sample_app/app/views/layouts/_stylesheets.html.erb where line #4 raised:
blueprint/screen.css isn't precompiled
Supporting info:
I followed Michael's section 13.1.4 advice and have the following as my app/views/layouts/application.html.erb:
<!DOCTYPE html>
<html>
<head>
<title><%= title %></title>
<%= render 'layouts/stylesheets' %>
<%= stylesheet_link_tag "application" %>
<%= javascript_include_tag "application" %>
<%= csrf_meta_tags %>
</head>
<body>
<div class="container">
<%= render 'layouts/header' %>
<section class="round">
<%= yield %>
</section>
<%= render 'layouts/footer' %>
</div>
</body>
</html>
Content of app/views/layouts/_stylesheets.html.erb:
<!--[if lt IE 9]>
<script src="http://html5shiv.googlecode.com/svn/trunk/html5.js"></script>
<![endif]-->
<%= stylesheet_link_tag 'blueprint/screen', :media => 'screen' %>
<%= stylesheet_link_tag 'blueprint/print', :media => 'print' %>
<!--[if lt IE 8]><%= stylesheet_link_tag 'blueprint/ie' %><![endif]-->
I have run bundle exec rake assets:precompile.
Content of public/assets/manifest.yml:
---
logo.png: logo-8e0a5ad292fbb13a2b07e68fa3995406.png
rails.png: rails-bd9ad5a560b5a3a7be0808c5cd76a798.png
blueprint/plugins/buttons/icons/cross.png: blueprint/plugins/buttons/icons/cross-2ebcd25368006d1b7b0c5b7d6b523ab3.png
blueprint/plugins/buttons/icons/key.png: blueprint/plugins/buttons/icons/key-55237526967cbcab3e8cfb12f0029d88.png
blueprint/plugins/buttons/icons/tick.png: blueprint/plugins/buttons/icons/tick-3f5fc1f52b505b93f88263e0432d25ce.png
blueprint/plugins/buttons/readme.txt: blueprint/plugins/buttons/readme-3ff7f5dbb0288d71f70682fdbe9d86ec.txt
blueprint/plugins/fancy-type/readme.txt: blueprint/plugins/fancy-type/readme-e7ed185d1a9f23256d418ab929b464d9.txt
blueprint/plugins/link-icons/icons/doc.png: blueprint/plugins/link-icons/icons/doc-b071fd74b88ff38cda8360a53f493013.png
blueprint/plugins/link-icons/icons/email.png: blueprint/plugins/link-icons/icons/email-28104e72b3418737d4b9b329c12ec358.png
blueprint/plugins/link-icons/icons/external.png: blueprint/plugins/link-icons/icons/external-ee6d976ddb80125fafe1a33c6f8aed10.png
blueprint/plugins/link-icons/icons/feed.png: blueprint/plugins/link-icons/icons/feed-59bc8604661681639d25cb7015a32c38.png
blueprint/plugins/link-icons/icons/im.png: blueprint/plugins/link-icons/icons/im-afeeb6e0b652c1edb1441bf0fb428596.png
blueprint/plugins/link-icons/icons/lock.png: blueprint/plugins/link-icons/icons/lock-d73c4b3b57ce72cb6dbd8b265507ff75.png
blueprint/plugins/link-icons/icons/pdf.png: blueprint/plugins/link-icons/icons/pdf-c4c543e5103a8516839a7846b91e1ac4.png
blueprint/plugins/link-icons/icons/visited.png: blueprint/plugins/link-icons/icons/visited-fb2370448bc4ea5d079e963a8c0d900b.png
blueprint/plugins/link-icons/icons/xls.png: blueprint/plugins/link-icons/icons/xls-5399729cd31dffc492a04b3805cd0be1.png
blueprint/plugins/link-icons/readme.txt: blueprint/plugins/link-icons/readme-42c02030199cd36a671d4b623cb4dc36.txt
blueprint/plugins/rtl/readme.txt: blueprint/plugins/rtl/readme-8d11bf76e19fb3fc7dbc6c2ddb54b92d.txt
blueprint/src/grid.png: blueprint/src/grid-973add038ed86febca85f03e8b35b94a.png
jquery-ui.min.js: jquery-ui-7e33882a28fc84ad0e0e47e46cbf901c.min.js
jquery.min.js: jquery-8a50feed8d29566738ad005e19fe1c2d.min.js
application.js: application-a552e1db33b8be6a42eedf1261916f3c.js
application.css: application-214e0c0742f20b334e8a7776e0a4c71d.css
I don't see blueprint/screen.css in manifest.yml.
What am I missing?
645
From http://guides.rubyonrails.org/asset_pipeline.html#precompiling-assets
If you have other manifests or individual stylesheets and JavaScript files to include, you can add them to the precompile array
This means that in your config/environments/production.rb, you set
config.assets.precompile += %w( blueprint/screen.css blueprint/print.css )
or a catchall:
config.assets.precompile += %w( *.css *.js )
I added a reference to the blueprint stylesheets in my application.css file. This way, I do not have to change the layout to modify the stylesheets, I simply need to modify the application.css file, run rake assets:precompile, and restart the webserver (if webrick or similar).
My application.css currently looks like this:
/*
* This is a manifest file that'll automatically include all the stylesheets available in this directory
* and any sub-directories. You're free to add application-wide styles to this file and they'll appear at
* the top of the compiled file, but it's generally better to create a new file per style scope.
*= require_self
*= require_tree ./blueprint
*= require_tree .
*/
You may want to precompile your assets on production as described above. And if you use capistrano you may do it after code update:
require 'bundler/capistrano'
after 'deploy:update_code' do
run "cd #{release_path}; RAILS_ENV=#{rails_env} bundle exec rake assets:precompile"
end
From my own experience with this problem, where I was also going through the excellent RoR tutorial by Michael Hartl, there was one step that I think might be left out at this point...
bundle exec rake assets:precompile
git add public/assets
git commit -m "vendor compiled assets"
git push heroku
I found this here.
27
If you love us? You can donate to us via Paypal or buy me a coffee so we can maintain and grow! Thank you!
Donate Us With
