我是Ruby On Rails的新手，这是我第一次尝试在生产中运行我的应用程序。但是我遇到了一些麻烦。
我有Ruby版本2.1.5和Rails版本4.2.3
我执行了以下步骤以使我的应用程序投入生产：
我运行命令行rake db:create RAILS_ENV=production来创建与生产环境相关的数据库。
我运行rake db:migrate RAILS_ENV=production来运行迁移
然后我使用rake assets:precompile RAILS_ENV=production
我查看了我的公共目录，并且我的资源目录已经出现了所有预编译文件。
当我在生产中打开我的应用程序时输入rails s -e production我已经完成了我在开发中所做的一切，除了没有任何javascript可以工作。
我尝试在我的一个视图中插入警报，以查看我的javascript是否在生产中有效。但我没有警觉。我在开发中启动了我的网络服务器，在那里我发出了有效的警报。
<script type="text/javascript">
alert("Bonjour");
</script>
看起来我的javascript在制作中无法使用，为什么？我已经阅读了很多关于类似问题但没有任何工作可以让任何人有任何想法来帮助我吗？
这是我的config/environments/production.rb文件：
Rails.application.configure do
# Force all access to the app over SSL, use Strict-Transport-Security,
# and use secure cookies.
config.force_ssl = false
# 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 threaded 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
# 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 serving static files from the `/public` folder by default since
# Apache or NGINX already handles this.
config.serve_static_files = ENV['RAILS_SERVE_STATIC_FILES'].present?
# Compress JavaScripts and CSS.
config.assets.js_compressor = :uglifier
config.assets.css_compressor = :sass
# Do not fallback to assets pipeline if a precompiled asset is missed.
config.assets.compile = true
# config.assets.precompile = ['*.js', '*.css', '*.css.erb']
# config.assets.precompile += %w( *.css *.scss *.js )
# Asset digests allow you to set far-future HTTP expiration dates on all assets,
# yet still be able to expire them through the digest params.
config.assets.digest = true
# `config.assets.precompile` and `config.assets.version` have moved to config/initializers/assets.rb
# 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
# Use the lowest log level to ensure availability of diagnostic information
# when problems arise.
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 = :mem_cache_store
# Enable serving of images, stylesheets, and JavaScripts from an asset server.
# config.action_controller.asset_host = 'http://assets.example.com'
# 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 cannot be found).
config.i18n.fallbacks = true
# Send deprecation notices to registered listeners.
config.active_support.deprecation = :notify
# Use default logging formatter so that PID and timestamp are not suppressed.
config.log_formatter = ::Logger::Formatter.new
# Do not dump schema after migrations.
config.active_record.dump_schema_after_migration = false
end
这是我的GemFile：
source 'https://rubygems.org'
# Bundle edge Rails instead: gem 'rails', github: 'rails/rails'
gem 'rails', '4.2.3'
#To have charts on rails
gem 'chartkick'
#To read, write spreadsheets
gem 'spreadsheet', '~> 1.0.3'
#To import CSV file and spreadsheets
gem 'roo', '~> 2.1.0'
#To improve tables style
gem 'jquery-datatables-rails', '~> 3.3.0'
gem 'jquery-ui-rails'
#Pour qu'il fonctionne, le gem bcrypt doit être utilisé sous sa version 3.1.9
gem 'bcrypt', '~>3.1.7'
gem 'bootstrap-sass', '3.2.0.0'
# Use mysql as the database for Active Record
gem 'mysql2'
# Use SCSS for stylesheets
gem 'sass-rails', '~> 5.0'
# Use Uglifier as compressor for JavaScript assets
gem 'uglifier', '>= 1.3.0'
# Use CoffeeScript for .coffee assets and views
gem 'coffee-rails', '~> 4.1.0'
# See https://github.com/rails/execjs#readme for more supported runtimes
# gem 'therubyracer', platforms: :ruby
# Use jquery as the JavaScript library
gem 'jquery-rails'
# Turbolinks makes following links in your web application faster. Read more: https://github.com/rails/turbolinks
#gem 'turbolinks'
# Build JSON APIs with ease. Read more: https://github.com/rails/jbuilder
gem 'jbuilder', '~> 2.0'
# bundle exec rake doc:rails generates the API under doc/api.
gem 'sdoc', '~> 0.4.0', group: :doc
# Use ActiveModel has_secure_password
# gem 'bcrypt', '~> 3.1.7'
# Use Unicorn as the app server
# gem 'unicorn'
# Use Capistrano for deployment
# gem 'capistrano-rails', group: :development
group :development, :test do
# Call 'byebug' anywhere in the code to stop execution and get a debugger console
gem 'byebug'
# Access an IRB console on exception pages or by using <%= console %> in views
gem 'web-console', '~> 2.0'
end
# Windows does not include zoneinfo files, so bundle the tzinfo-data gem
gem 'tzinfo-data', platforms: [:mingw, :mswin, :x64_mingw, :jruby]
我尝试添加以下行：config.assets.precompile += ['*.js', '*.css', '*.css.erb']但是我有以下错误：
Sass::SyntaxError: Undefined variable: "$alert-padding"
我也尝试添加这一行：
config.assets.precompile += %w( *.css *.scss *.js )
我仍然有同样的错误。