部署 Rails 4 报错 ActionDispatch::Session::EncryptedCookieStore
capistrano 部署 rails 4，执行 assets:precompile 遇到错误。按照官网的建议，我把 capistrano 升级到 2.15.5，问题依旧没解决啊，怎么办？
折腾了 1 天了，求指点。
servers: ["192.155.83.174"]
[192.155.83.174] executing command
** [out :: 192.155.83.174] rake aborted!
** [out :: 192.155.83.174] uninitialized constant ActionDispatch::Session::EncryptedCookieStore
** [out :: 192.155.83.174] /home/deployer/apps/chalkboard/shared/bundle/ruby/2.0.0/gems/railties-4.0.0/lib/rails/application/configuration.rb:144:in `const_get'
** [out :: 192.155.83.174] /home/deployer/apps/chalkboard/shared/bundle/ruby/2.0.0/gems/railties-4.0.0/lib/rails/application/configuration.rb:144:in `session_store'
** [out :: 192.155.83.174] /home/deployer/apps/chalkboard/shared/bundle/ruby/2.0.0/gems/railties-4.0.0/lib/rails/application.rb:346:in `block in default_middleware_stack'
** [out :: 192.155.83.174] /home/deployer/apps/chalkboard/shared/bundle/ruby/2.0.0/gems/railties-4.0.0/lib/rails/application.rb:308:in `tap'
** [out :: 192.155.83.174]
** [out :: 192.155.83.174] /home/deployer/apps/chalkboard/shared/bundle/ruby/2.0.0/gems/railties-4.0.0/lib/rails/application.rb:308:in `default_middleware_stack'
** [out :: 192.155.83.174] /home/deployer/apps/chalkboard/shared/bundle/ruby/2.0.0/gems/railties-4.0.0/lib/rails/engine.rb:494:in `app'
** [out :: 192.155.83.174]
** [out :: 192.155.83.174] /home/deployer/apps/chalkboard/shared/bundle/ruby/2.0.0/gems/railties-4.0.0/lib/rails/application/finisher.rb:34:in `block in <module:Finisher>'
** [out :: 192.155.83.174] /home/deployer/apps/chalkboard/shared/bundle/ruby/2.0.0/gems/railties-4.0.0/lib/rails/initializable.rb:30:in `instance_exec'
** [out :: 192.155.83.174] /home/deployer/apps/chalkboard/shared/bundle/ruby/2.0.0/gems/railties-4.0.0/lib/rails/initializable.rb:30:in `run'
** [out :: 192.155.83.174] /home/deployer/apps/chalkboard/shared/bundle/ruby/2.0.0/gems/railties-4.0.0/lib/rails/initializable.rb:55:in `block in run_initializers'
** [out :: 192.155.83.174]
** [out :: 192.155.83.174] /home/deployer/apps/chalkboard/shared/bundle/ruby/2.0.0/gems/railties-4.0.0/lib/rails/initializable.rb:54:in `run_initializers'
** [out :: 192.155.83.174] /home/deployer/apps/chalkboard/shared/bundle/ruby/2.0.0/gems/railties-4.0.0/lib/rails/application.rb:215:in `initialize!'
** [out :: 192.155.83.174] /home/deployer/apps/chalkboard/shared/bundle/ruby/2.0.0/gems/railties-4.0.0/lib/rails/railtie/configurable.rb:30:in `method_missing'
** [out :: 192.155.83.174] /home/deployer/apps/chalkboard/releases/20130823050332/config/environment.rb:5:in `<top (required)>'
** [out :: 192.155.83.174]
** [out :: 192.155.83.174] /home/deployer/apps/chalkboard/shared/bundle/ruby/2.0.0/gems/railties-4.0.0/lib/rails/application.rb:189:in `require_environment!'
** [out :: 192.155.83.174] /home/deployer/apps/chalkboard/shared/bundle/ruby/2.0.0/gems/railties-4.0.0/lib/rails/application.rb:249:in `block in run_tasks_blocks'
** [out :: 192.155.83.174] /
** [out :: 192.155.83.174] home/deployer/apps/chalkboard/shared/bundle/ruby/2.0.0/gems/sprockets-rails-2.0.0/lib/sprockets/rails/task.rb:54:in `block (2 levels) in define'
** [out :: 192.155.83.174] Tasks: TOP => environment
** [out :: 192.155.83.174] (See full trace by running task with --trace)
command finished in 5548ms
*** [deploy:update_code] rolling back
* executing "rm -rf /home/deployer/apps/chalkboard/releases/20130823050332; true"
servers: ["192.155.83.174"]
[192.155.83.174] executing command
command finished in 1549ms
failed: "rvm_path=/usr/local/rvm /usr/local/rvm/bin/rvm-shell 'ruby-2.0.0-p247' -c 'cd -- /home/deployer/apps/chalkboard/releases/20130823050332 && RAILS_ENV=production RAILS_GROUPS=assets bundle exec rake assets:precompile'" on 192.155.83.174
这应该和 Capistrano 无关，你试试在你本地执行
$ RAILS_ENV=production RAILS_GROUPS=assets bundle exec rake assets:precompile
应该是跑不起来的
你把 config/environments/production.rb 发出来看看
谢谢华顺指点。
我在本地也跑不起来，看来和 capistrano 没啥关系。
config/environments/production.rb
Chalkboard::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
# Eager load code on boot. This eager loads most of Rails and
# your application in memory, allowing both thread web servers
# and those relying on copy on write to perform better.
# Rake tasks automatically ignore this option for performance.
config.eager_load = true
# Full error reports are disabled and caching is turned on.
config.consider_all_requests_local = false
config.action_controller.perform_caching = true
# Enable Rack::Cache to put a simple HTTP cache in front of your application
# Add `rack-cache` to your Gemfile before enabling this.
# For large-scale production use, consider using a caching reverse proxy like nginx, varnish or squid.
# config.action_dispatch.rack_cache = 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.js_compressor = :uglifier
# config.assets.css_compressor = :sass
# Whether to fallback to assets pipeline if a precompiled asset is missed.
config.assets.compile = false
# Generate digests for assets URLs.
config.assets.digest = true
# Version of your assets, change this if you want to expire all your assets.
config.assets.version = '1.0'
# 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
# Set to :debug to see everything in the log.
config.log_level = :info
# 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 = :mem_cache_store
# Enable serving of images, stylesheets, and JavaScripts from an asset server.
# config.action_controller.asset_host = "http://assets.example.com"
# Precompile additional assets.
# application.js, application.css, and all non-JS/CSS in app/assets folder are already added.
# config.assets.precompile += %w( search.js )
# Ignore bad email addresses and do not raise email delivery errors.
# Set this to true and configure the email server for immediate delivery to raise delivery errors.
# config.action_mailer.raise_delivery_errors = false
# 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
# Disable automatic flushing of the log to improve performance.
# config.autoflush_log = false
# Use default logging formatter so that PID and timestamp are not suppressed.
config.log_formatter = ::Logger::Formatter.new
end
