I have Mac OS X Snow leopard that has pre-installed Ruby 1.8.7 and Rails 3.0.1 I need to work with Redmine a bit that requires Rails 2.3.5
Is it possible to correctly downgrade my current rails 3.0.1 to rails 2.3.5?
您不需要降级,RubyGems允许您安装同一个库的多个版本。
$ gem install rails -v 2.3.5
为了避免版本控制地狱,你也可以使用rvm ,它允许你在同一台机器上安装多个ruby版本和“gemsets”并在它们之间切换。
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