How can I install Ruby on Rails 3 on OSX?

Question

I got a White Macbook and I have to go to a conference in 10 hours but I\'m having a lot of problems.

First, I wanted to have Rails 3, so I used MacPorts to install

Answer 1

You may have two different versions of Ruby installed. Try "gem env" or "sudo gem env" and see which version of Ruby it says you have.

Remove the older one if you have two installed. If all else fails, upgrade to 1.9.x, I believe it is recommended for Rails 3 anyway.