I use gem install rails -v=2.3.8
to install rails, and it says rdoc and ri has been generated.
But when I gem server
, I can't open the rails doc in browser, it says doc_root/rails-2.3.8/rdoc/index.html not found
I looked into /usr/local/lib/ruby/gems/1.8/doc/rails-2.3.8/rdoc
, found it is empty.
How to fix it? How to generate the rdoc by gem?