问题
I installed Ruby 1.9.2 using one click installer to c:\ruby192
It doesn't set any path, so I set it to include c:\ruby192 at the very beginning of the path.
But when it error on something (for Rails 3.0), the path says:
[Error message]
c:/ruby192/lib/ruby/gems/1.9.1/gems/railties-3.0.0/lib/rails/commands.rb
why is it 1.9.1 gems path for Ruby 1.9.2?
回答1:
From a little FAQ chapter to the release:
The standard library is installed in /usr/local/lib/ruby/1.9.1 This version number is "library compatibility version". Ruby 1.9.2 is mostly compatible with the 1.9.2, so its library is installed in the directory.
来源：https://stackoverflow.com/questions/3656815/why-is-ruby-1-9-2-on-windows-7-using-a-1-9-1-path-for-gems-it-is-using-c-ruby1