I’m just posting a simple tip today.
I was wanting to play around with the very cool SASS meta-language using Compass. The language and tool are implemented in Ruby, which is pre-installed on OS X, but as I discovered, I needed a newer version of RubyGems.
I had already known I needed to update Gems, so I was doing the following:
$ sudo gem update
Eventually I got errors like this:
Updating installed gems... Bulk updating Gem source index for: http://gems.rubyforge.org Bulk updating Gem source index for: http://gems.github.com/ Attempting remote update of RedCloth ERROR: Error installing RedCloth: RedCloth requires RubyGems version >= 1.2 Attempting remote update of capistrano ERROR: Error installing capistrano: capistrano requires RubyGems version >= 1.2 Attempting remote update of net-sftp ERROR: Error installing net-sftp: net-sftp requires RubyGems version >= 1.2 Attempting remote update of net-ssh ERROR: Error installing net-ssh: net-ssh requires RubyGems version >= 1.2 Gems updated: RedCloth, capistrano, net-sftp, net-ssh
Turns out, to update RubyGems, one must update the gem system!
So, the next correct command to run is:
$ sudo gem update --system
This updated my RubyGems to version 1.3.1 and allowed me to move forward in playing with Ruby.