# Ruby and Rails on Leopard **URL:** \ **Category:** Rails\ **Created:** [October 29, 2007, 12:16am UTC](https://www.ruby-forum.com/t/ruby-and-rails-on-leopard/118566 "2007-10-29T00:16:29Z")\ **Posts on this page:** 5\ **Page:** 1
**Author:** ![johnt519](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/j/cab0a1/32.png) [@johnt519](https://www.ruby-forum.com/u/johnt519)\ **Post date:** [October 29, 2007, 12:16am UTC](https://www.ruby-forum.com/t/ruby-and-rails-on-leopard/118566/1 "2007-10-29T00:16:29Z")
I asked on the Ruby list the best way to switch from my Hivelogic source installed versions of Ruby and Rails, to the Leopard native versions. The reply was to just change my PATH to move the /usr/local/bin to the end of the path. That way the ruby and rails (and svn, and rake, etc.) commands would use the OS X native versions, and other things I’ve installed would continue to work. That all seemed to work OK. Then I decided I’d try updating the gems (Leopard comes with Rails 1.2.3). The gem update was proceeding along fine, until it hit an error and stopped the update process: Installing ri documentation for activerecord-1.15.5… /System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/ruby/1.8/rdoc/rdoc.rb:101:in `error’: (RDoc::RDocError) Directory /Library/Ruby/Gems/1.8/doc/activerecord-1.15.5/ri already exists, but it looks like it isn’t an RDoc directory. Because RDoc doesn’t want to risk destroying any of your existing files, you’ll need to specify a different output directory name (using the –op option). Don’t know what to do now… the directory referenced: /Library/Ruby/Gems/1.8/doc/activerecord-1.15.5/ri and is empty - it was actually installed by the gem update process (the /doc directory was empty before the gem update) Anyone have any idea? Thanks ---
**Author:** ![johnt519](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/j/cab0a1/32.png) [@johnt519](https://www.ruby-forum.com/u/johnt519)\ **Post date:** [October 29, 2007, 12:30am UTC](https://www.ruby-forum.com/t/ruby-and-rails-on-leopard/118566/2 "2007-10-29T00:30:41Z")
You are pretty much on your won updating to 1.2.5 right now, which for me and my app seems to break a few things. However, if you so desperately need to upgrade rails… first off, are you just upgrading rails? Or using gem update --system? Have you tried using --no-doc --no-ri? I have not attempted to update to 1.2.5 and don’t plan to right away. So I don’t know how much help I can be. On 10/28/07, John T. [removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid) wrote: > ## specify a different output directory name (using the > > Posted via [http://www.ruby-forum.com/](http://www.ruby-forum.com/). > > > – Michael S. Linux Admin/Developer AIM: mikesteinfeld GTALK: removed\_email\_address@domain.invalid ---
**Author:** ![johnt519](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/j/cab0a1/32.png) [@johnt519](https://www.ruby-forum.com/u/johnt519)\ **Post date:** [October 29, 2007, 12:35am UTC](https://www.ruby-forum.com/t/ruby-and-rails-on-leopard/118566/3 "2007-10-29T00:35:22Z")
After a little reading, The problem is that RDoc empties the output directory, but leaves the directory itself there. RDoc doesn’t like putting documentation into an empty directory, because it doesn’t want to clobber someone else’s space. It wants to create the directory itself, or at least find a “created.rid” file there. my advice, manually remove the directory and try again. Or use the –no-doc switch. Hope that helps. ---
**Author:** ![johnt519](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/j/cab0a1/32.png) [@johnt519](https://www.ruby-forum.com/u/johnt519)\ **Post date:** [October 29, 2007, 12:47am UTC](https://www.ruby-forum.com/t/ruby-and-rails-on-leopard/118566/4 "2007-10-29T00:47:04Z")
I just did a “sudo gem update” (this is on a non-production, critical, system - I was just testing to see how it’s all going to work.) I’d guess since the update it putting the updated gems into a separate directory, from the system installed gems, that may be the problem. I’ll try with the --no-doc switch and see what happens. thanks. ---
**Author:** ![johnt519](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/j/cab0a1/32.png) [@johnt519](https://www.ruby-forum.com/u/johnt519)\ **Post date:** [October 30, 2007, 7:09am UTC](https://www.ruby-forum.com/t/ruby-and-rails-on-leopard/118566/5 "2007-10-30T07:09:31Z")
John T. wrote: > I just did a “sudo gem update” > > (this is on a non-production, critical, system - I was just testing to > see how it’s all going to work.) > > I’d guess since the update it putting the updated gems into a separate > directory, from the system installed gems, that may be the problem. > I’ll try with the --no-doc switch and see what happens. > > thanks. Well, I think it’s not just the Leopard native system. I just tried doing a gem update on my installed-from-source version (in /usr/local) and I got the same error about activerecord - Installing ri documentation for activerecord-1.15.5… /usr/local/lib/ruby/1.8/rdoc/rdoc.rb:101:in `error’: (RDoc::RDocError) Directory /usr/local/lib/ruby/gems/1.8/doc/activerecord-1.15.5/ri already exists, but it looks like it isn’t an RDoc directory. Because RDoc doesn’t want to risk destroying any of your existing files, you’ll need to specify a different output directory name (using the –op option). This file is what was just installed by the gem update command, so it makes sense that the ri directory exists - it came from the gem! And it looks like it just happened when updating rake: Successfully installed rake-0.7.3 Installing ri documentation for rake-0.7.3… /usr/local/lib/ruby/1.8/rdoc/rdoc.rb:101:in `error’: (RDoc::RDocError) Directory /usr/local/lib/ruby/gems/1.8/doc/rake-0.7.3/ri already exists, but it looks like it isn’t an RDoc directory. Because RDoc doesn’t want to risk destroying any of your existing files, you’ll need to specify a different output directory name (using the –op option). I’m just copying the created.rid file from another directory and re-installing.