Ahmed Abdelsalam wrote in post #971296:
As you are using Rails 3, you have a good option after installing rails
is to run "bundle install" command from your application, this will
install all required gems for you.
Thanks, but they are already installed. It is only the generation of
documentation that fails. And I can fix that manually with RDoc 3.
Another note, I faced many cases in Rails 3 that installation of gems
fail, and after some researching, the solutions was to
add --no-ri --no-rdoc to the installation command.
For example, if you want to install rails
gem install rails --no-ri --no-rdoc
Yes indeed, that works, but then, there is no local documentation...
I wanted to report the problem a default 'gem install rails' on the
latest ruby 1.8.7 patch showed this problem (but maybe I am doing
something wrong ?).
I also had a problem with my rubygems sources, fixed that, but the
problem with generation of documentation for builder-2.1.2 is still
present on my system.