Rails 3 user to Rails 2: Installing gems without a gemfile?

Question

I'm familiar with Rails 3, but not rails 2. I've just inherited a rails 2 project with no Gemfile, but a bunch of config.gem lines in config/environment.rb

I'm just wondering how I to install these. bundle install returns Could not locate Gemfile .

Answer 1

您可以使用rake命令在rails 2.x中安装gem

   rake gems:install

Answer 2

You can use bundle install if you use this guide:

http://gembundler.com/rails23.html

To have "backwards" compatibility for bundler.