Rails 如何安装 Rails 4.2?

linjunhalida · October 04, 2014 · Last by huacnlee replied at October 04, 2014 · 2107 hits

执行：

 $ gem install rails  -v "4.2.0.beta2"           
ERROR:  While executing gem ... (Gem::UnsatisfiableDependencyError)
    Unable to resolve dependency: 'rails (= 4.2.0.beta2)' requires 'railties (= 4.2.0.beta2)'

请问大家怎么做？谢谢~

ericguo #1 October 04, 2014

gemfile 里面指定版本，然后 bundle install

linjunhalida #2 October 04, 2014

但是我要先装好 rails，然后再 rails new xxx。好吧，创建一个空项目 install 先。

huacnlee #3 October 04, 2014

淘宝源安装 pre 版本有问题，因为 /api 的功能没实现。

这类需求你可以换官方的。

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