使用Mongo进行Heroku部署

Question

有人能告诉我我做错了什么吗？我试图将一个简单的rails应用程序推送到使用MongoDB的Heroku.我的Gemfile包含以下行:

宝石"mongo"

当将应用程序推送到Heroku时,错误就出现了:没有这样的文件要加载 - mongo

-----> Heroku receiving push
-----> Rails app detected
-----> Detected Rails is not set to serve static_assets
       Installing rails3_serve_static_assets... done
-----> Gemfile detected, running Bundler version 1.0.3
       Unresolved dependencies detected; Installing...
       /usr/ruby1.8.7/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:31:in `gem_original_require': no such file to load -- mongo (LoadError)

这是我的整个gemfile:

require 'rubygems'
require 'mongo'
source 'http://gemcutter.org'

gem "rails", "3.0.0"
#gem 'rails', :git => 'http://github.com/rails/rails.git'

gem "mongo_mapper"
gem 'mongoid', '2.0.0.beta.20'
gem 'devise', :git => 'git://github.com/plataformatec/devise.git'
gem 'heroku', '1.13.7'


# Bundle edge Rails instead:
# gem 'rails', :git => 'git://github.com/rails/rails.git'

Answer 1

你不需要Gemfile中的这些行:

require 'rubygems'
require 'mongo'

捆绑包不需要更新或安装您的宝石.

还有,你有没有安装mongoid和mongo_mapper的原因？