我是 Ruby on Rails 的新手，并且正在关注 Michael Hartl 的 3.2 教程书作为参考。我让我的应用程序运行并部署到 Heroku 上，直到我尝试添加非官方的 yummly gem。 http://rubygems.org/gems/yummly/versions/0.0.7
我让它在本地工作（制作和获取 api 很好），但是当我将它推送到 Heroku 时，应用程序崩溃并说它在第 5 行的帮助文件中找不到 Yummly.rb。
除了包括
需要美味
在我的控制器类和
宝石“美味”
（并运行捆绑安装）在我的 Gemfile 中，我可能会丢失什么？也许我需要指定 gem 需要是最新版本 0.0.9（我无法安装它，所以我没有尝试更改它）？
这是否与Heroku特别有关？还是与 Yummly Gem 有特殊关系？
Heroku 记录如下
State changed from crashed to starting
Starting process with command `bundle exec thin start -R config.ru -e $RAILS_ENV -p 51790`
DEPRECATION WARNING: You have Rails 2.3-style plugins in vendor/plugins! Support for these plugins will be removed in Rails 4.0. Move them out and bundle them in your Gemfile, or fold them in to your app as lib/myplugin/* and config/initializers/myplugin.rb. See the release notes for more on this: http://weblog.rubyonrails.org/2012/1/4/rails-3-2-0-rc2-has-been-released. (called from <top (required)> at /app/config/environment.rb:5)
DEPRECATION WARNING: You have Rails 2.3-style plugins in vendor/plugins! Support for these plugins will be removed in Rails 4.0. Move them out and bundle them in your Gemfile, or fold them in to your app as lib/myplugin/* and config/initializers/myplugin.rb. See the release notes for more on this: http://weblog.rubyonrails.org/2012/1/4/rails-3-2-0-rc2-has-been-released. (called from <top (required)> at /app/config/environment.rb:5)
/app/vendor/bundle/ruby/1.9.1/gems/activesupport-3.2.13/lib/active_support/dependencies.rb:317:in `rescue in depend_on': Missing helper file helpers/Yummly.rb (LoadError)
from /app/vendor/bundle/ruby/1.9.1/gems/actionpack-3.2.13/lib/action_controller/metal/helpers.rb:92:in `modules_for_helpers'
from /app/vendor/bundle/ruby/1.9.1/gems/actionpack-3.2.13/lib/abstract_controller/helpers.rb:131:in `modules_for_helpers'
from /app/vendor/bundle/ruby/1.9.1/gems/actionpack-3.2.13/lib/abstract_controller/helpers.rb:131:in `map!'
from /app/vendor/bundle/ruby/1.9.1/gems/actionpack-3.2.13/lib/abstract_controller/helpers.rb:135:in `block in modules_for_helpers'
from /app/vendor/bundle/ruby/1.9.1/gems/activesupport-3.2.13/lib/active_support/dependencies.rb:312:in `depend_on'
from /app/vendor/bundle/ruby/1.9.1/gems/activesupport-3.2.13/lib/active_support/dependencies.rb:225:in `require_dependency'
from /app/vendor/bundle/ruby/1.9.1/gems/actionpack-3.2.13/lib/abstract_controller/helpers.rb:159:in `default_helper_module!'
from /app/vendor/bundle/ruby/1.9.1/gems/actionpack-3.2.13/lib/action_controller/metal/params_wrapper.rb:135:in `inherited'
from /app/app/controllers/application_controller.rb:1:in `<top (required)>'
from /app/vendor/bundle/ruby/1.9.1/gems/actionpack-3.2.13/lib/abstract_controller/helpers.rb:95:in `helper'
from /app/vendor/bundle/ruby/1.9.1/gems/activesupport-3.2.13/lib/active_support/dependencies.rb:251:in `require'
from /app/vendor/bundle/ruby/1.9.1/gems/activesupport-3.2.13/lib/active_support/dependencies.rb:251:in `block in require'
from /app/vendor/bundle/ruby/1.9.1/gems/railties-3.2.13/lib/rails/engine.rb:439:in `block (2 levels) in eager_load!'
from /app/vendor/bundle/ruby/1.9.1/gems/actionpack-3.2.13/lib/abstract_controller/railties/routes_helpers.rb:7:in `block (2 levels) in with'
from /app/vendor/bundle/ruby/1.9.1/gems/actionpack-3.2.13/lib/action_controller/railties/paths.rb:7:in `block (2 levels) in with'
from /app/vendor/bundle/ruby/1.9.1/gems/actionpack-3.2.13/lib/abstract_controller/helpers.rb:22:in `block in inherited'
rom /app/vendor/bundle/ruby/1.9.1/gems/actionpack-3.2.13/lib/abstract_controller/helpers.rb:22:in `class_eval'
from /app/vendor/bundle/ruby/1.9.1/gems/actionpack-3.2.13/lib/abstract_controller/helpers.rb:22:in `inherited'
from /app/vendor/bundle/ruby/1.9.1/gems/railties-3.2.13/lib/rails/engine.rb:436:in `ea