rails 3 install error "File not found: lib"

Question

When installing Rails 3.0.1 i always get following error message, although i can use the installation.

I'm not sure if there's something wrong, I'm irritated by the error message.

Answer 1

As in the answer by balupton:

Ruby on Rails Beta 3 Install Problem on Snow Leopard

gem install rdoc 

Follow instructions and then rerun

gem install rails 

No errors occur to me now.

Answer 2

That didn't work for me, but this did sudo gem install rails --no-rdoc --no-ri