我在本地预编译资产并将它们推送到S3。在制作中我得到了这个错误：
heroku[router]: at=info method=GET path=/ host=www.someapp.org fwd="76.87.106.226" dyno=web.1 connect=2ms service=614ms status=500 bytes=0
app[web.1]: ActionView::Template::Error (couldn't find file 'bootstrap'
app[web.1]: app/views/application/_stylesheets.html.erb:1:in `...'
app[web.1]: app/views/layouts/application.html.erb:5:in `...'
app[web.1]:
app[web.1]: (in /app/app/assets/stylesheets/application.css:11)):
app[web.1]: 1: <%= stylesheet_link_tag "application", media: "all" %>
当我在本地生产模式下运行时，我没有收到该错误。
这是我的application.rb：
require File.expand_path("../boot", __FILE__)
# Pick the frameworks you want:
require "active_record/railtie"
require "action_controller/railtie"
require "action_mailer/railtie"
require "active_resource/railtie"
require "sprockets/railtie"
# require "rails/test_unit/railtie"
if defined?(Bundler)
# If you precompile assets before deploying to production, use this line
Bundler.require(*Rails.groups(:assets => %w(development test)))
# If you want your assets lazily compiled in production, use this line
# Bundler.require(:default, :assets, Rails.env)
end
module SomeApp
class Application < Rails::Application
require "ksp"
require "markdowner"
require "patches/carrier_wave"
VERSION = "1.0.0"
# Settings in config/environments/* take precedence over those specified here.
# Application configuration should go into files in config/initializers
# -- all .rb files in that directory are automatically loaded.
# Custom directories with classes and modules you want to be autoloadable.
# config.autoload_paths += %W(#{config.root}/extras)
# Only load the plugins named here, in the order given (default is alphabetical).
# :all can be used as a placeholder for all plugins not explicitly named.
# config.plugins = [ :exception_notification, :ssl_requirement, :all ]
# Activate observers that should always be running.
# config.active_record.observers = :cacher, :garbage_collector, :forum_observer
# Set Time.zone default to the specified zone and make Active Record auto-convert to this zone.
# Run "rake -D time" for a list of tasks for finding time zone names. Default is UTC.
# config.time_zone = "Central Time (US & Canada)"
# The default locale is :en and all translations from config/locales/*.rb,yml are auto loaded.
# config.i18n.load_path += Dir[Rails.root.join("my", "locales", "*.{rb,yml}").to_s]
# config.i18n.default_locale = :de
# Configure the default encoding used in templates for Ruby 1.9.
config.encoding = "utf-8"
# Configure sensitive parameters which will be filtered from the log file.
config.filter_parameters += [:password]
# Enable escaping HTML in JSON.
config.active_support.escape_html_entities_in_json = true
# Use SQL instead of Active Record"s schema dumper when creating the database.
# This is necessary if your schema can"t be completely dumped by the schema dumper,
# like if you have constraints or database-specific column types
# config.active_record.schema_format = :sql
# Enforce whitelist mode for mass assignment.
# This will create an empty whitelist of attributes available for mass-assignment for all models
# in your app. As such, your models will need to explicitly whitelist or blacklist accessible
# parameters by using an attr_accessible or attr_protected declaration.
config.active_record.whitelist_attributes = true
# Enable the asset pipeline
config.assets.enabled = true
# Version of your assets, change this if you want to expire all your assets
config.assets.version = "1.0"
config.generators do |generator|
generator.test_framework :rspec, view_specs: false
end
config.assets.prefix = "/assets/#{Rails.env}"
config.filepicker_rails.api_key = ENV["FILEPICKER_API_KEY"]
# Allow for CORS requests
config.middleware.use Rack::Cors do
allow do
origins "*"
resource "*", headers: :any, methods: [:get, :post, :options]
end
end
end
end
这是我的production.rb：
SomeApp::Application.configure do
# Settings specified here will take precedence over those in config/application.rb
# Code is not reloaded between requests
config.cache_classes = true
# Full error reports are disabled and caching is turned on
config.consider_all_requests_local = false
config.action_controller.perform_caching = true
# Disable Rails's static asset server (Apache or nginx will already do this)
config.serve_static_assets = false
# Compress JavaScripts and CSS
config.assets.compress = true
# Don't fallback to assets pipeline if a precompiled asset is missed
config.assets.compile = false
# Generate digests for assets URLs
config.assets.digest = true
# Defaults to nil and saved in location specified by config.assets.prefix
# config.assets.manifest = YOUR_PATH
# Specifies the header that your server uses for sending files
# config.action_dispatch.x_sendfile_header = "X-Sendfile" # for apache
config.action_dispatch.x_sendfile_header = 'X-Accel-Redirect' # for nginx
# Force all access to the app over SSL, use Strict-Transport-Security, and use secure cookies.
# config.force_ssl = true
# See everything in the log (default is :info)
# config.log_level = :debug
# Prepend all log lines with the following tags
# config.log_tags = [ :subdomain, :uuid ]
# Use a different logger for distributed setups
# config.logger = ActiveSupport::TaggedLogging.new(SyslogLogger.new)
# Use a different cache store in production
config.cache_store = :dalli_store
# Enable serving of images, stylesheets, and JavaScripts from an asset server
config.action_controller.asset_host = "d20eprk8nbwd96.cloudfront.net"
# Precompile additional assets (application.js, application.css, and all non-JS/CSS are already added)
# config.assets.precompile += %w( search.js )
# Disable delivery errors, bad email addresses will be ignored
# config.action_mailer.raise_delivery_errors = false
config.action_mailer.default_url_options = { host: "www.someapp.org" }
# Enable threaded mode
# config.threadsafe!
# Enable locale fallbacks for I18n (makes lookups for any locale fall back to
# the I18n.default_locale when a translation can not be found)
config.i18n.fallbacks = true
# Send deprecation notices to registered listeners
config.active_support.deprecation = :notify
# Log the query plan for queries taking more than this (works
# with SQLite, MySQL, and PostgreSQL)
# config.active_record.auto_explain_threshold_in_seconds = 0.5
end
这是我的asset_sync.rb：
if defined?(AssetSync) && !(ENV["HOME"] == "/app")
AssetSync.configure do |config|
config.fog_provider = "AWS"
config.fog_directory = ENV["AMAZON_BUCKET"]
config.aws_access_key_id = ENV["AMAZON_S3_KEY"]
config.aws_secret_access_key = ENV["AMAZON_S3_SECRET"]
# Increase upload performance by configuring your region
config.fog_region = "us-west-2"
#
# Don't delete files from the store
config.existing_remote_files = ENV["ASSET_SYNC_EXISTING_REMOTE_FILES"]
#
# Automatically replace files with their equivalent gzip compressed version
config.gzip_compression = ENV["ASSET_SYNC_GZIP_COMPRESSION"]
#
# Use the Rails generated 'manifest.yml' file to produce the list of files to
# upload instead of searching the assets directory.
config.manifest = ENV["ASSET_SYNC_MANIFEST"]
#
# Fail silently. Useful for environments such as Heroku
# config.fail_silently = true
end
end
这是我的application.css：
/*
*= require bootstrap
*= require bootstrap-responsive
*= require font-awesome
*= require chosen
*= require bootstrap/tour
*= require bootstrap/lightbox
*= require_self
*/
在本地生产模式下，该方法为我提供了正确的前端URL。
这里出了什么问题？
答案 0 :(得分：0)
尽管在本地进行了预编译，Heroku仍然试图在Heroku上进行预编译。
它会失败，然后尝试实时编译资产。然后，这将以所描述的方式失败。
我通过创建一个空文件/public/assets/manifest.yml解决了这个问题，即使我的配置说资产位于/public/assets/production/