可比性问题rails 4 beta，ruby 2.0.0，mongoid [英] Comparability Issue rails 4 beta, ruby 2.0.0, mongoid

问题描述

我正在使用以下版本的rails，ruby和mongoid创建测试应用程序.

I am creating a test application using following versions of rails, ruby and mongoid.

rails 4 beta
ruby 2.0.0
mongoid 3.1.2

我的GemFile看起来像这样

gem 'rails', '4.0.0.beta1'
ruby '2.0.0'
gem 'mongoid', '~> 3.1.2'
gem 'bson_ext'

但是当我在控制台上运行bundle时，出现以下错误.

But when i run bundle on console I get following error.

Bundler找不到与"activemodel"宝石兼容的版本:

Bundler could not find compatible versions for gem "activemodel":

Fetching gem metadata from https://rubygems.org/...........
Fetching gem metadata from https://rubygems.org/..
Resolving dependencies...
Bundler could not find compatible versions for gem "activemodel":
  In Gemfile:
    mongoid (~> 3.1.2) ruby depends on
      activemodel (~> 3.2) ruby

    rails (= 4.0.0.beta1) ruby depends on
      activemodel (4.0.0.beta1)

任何人都可以帮忙吗?请.....

Can anyone help? Please.....

推荐答案

使用github上的mongoid master，它支持rails 4.0.

Use mongoid master from github, that has support for rails 4.0.

gem 'mongoid', git: 'https://github.com/mongoid/mongoid.git'

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