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照着书上依葫芦画瓢创建自己的第一个Ruby应用，windows环境。在执行rake db:migrate时报了如下错

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rake aborted!

You have already activated rake 0.9.2.2, but your Gemfile requires rake 10.0.3.

Using bundle exec may solve this.

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(See full trace by running task with --trace)

---#

网上查了下，看了几个都说按照提示使用：bundle exec rake db:migrate?会解决问题。但是对我无效。

也有哥们说后面还加个VERSION=没看明白，但是各种尝试加上版本号都未果。

执行bundle exec rake db:migrate?的错误信息如下：

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rake aborted!

cannot load such file -- bundler/setup

E:/works/rubytest/depot/config/boot.rb:6:in `<top (required)>'

E:/works/rubytest/depot/config/application.rb:1:in `<top (required)>'

E:/works/rubytest/depot/Rakefile:5:in `<top (required)>'

(See full trace by running task with --trace)

---#

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参考链接：http://jxpwyd.iteye.com/blog/1327581

http://www.dunjh.com/blog/2011/05/%E5%AD%A6%E4%B9%A0%E4%B8%80%E4%B8%8Bblumine/

http://www.bwxxkj.com/a/jishuzhongxin/bianchengyuyan/2012/0617/105120.html

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最终我的解决办法是：在dos中执行gem install rake

安装rake

还不行的话，再bundle下看看。

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