How do I upgrade to the newest version of Rails?

Question

I'm running on OSX Snow Leopard. Using ruby -v I see I have 1.8.7 and using rails -v I have 2.3.5

When I try gem update rails I get the following error:

bundler requires RubyGems version >= 1.3.6

He's upgrading an application, I just need to update the version of rails installed. Also he's on a Windows machine, and I'm on a mac. In addition that thread is a year old and has items specific to that version which are now out dated. — , May 14 '11 at 05:56
A question: why was this question migrated from stackoverflow to superuser? It's clearly about software development (and the related things that go with it, such as how to configure X dev environment). — Zabba, May 14 '11 at 07:00
@Zabba: probably they confused SuperUser and ServerFault; this is not software development questions either. — Lie Ryan, May 14 '11 at 11:17

score 2 · Answer 1 · answered May 14 '11 at 07:11

The error message you're receiving is because the new version of Rails requires a newer version of gem than you have. You can update gem like this:

gem update --system

You may need sudo if you're using system gem. You can check the version of gem by running:

gem -v

Once this is done, and you can confirm your gem version is at least 1.3.6, you should be able to run:

gem update rails

score 1 · Accepted Answer · answered May 14 '11 at 06:00

1

I suggest using rvm instead of trying to mess with ruby that comes default with Mac os

answered May 14 '11 at 06:00

score 0 · Answer 3 · edited Jun 26 '11 at 10:51

0

I don't know if you have Brew or Macport:

If you have Brew installled then you use the following command to install:

sudo gem install rails

or

brew gem install rails

Please go through this link:

http://hivelogic.com/articles/compiling-ruby-rubygems-and-rails-on-snow-leopard/

edited Jun 26 '11 at 10:51

Gareth

18,809

answered May 14 '11 at 05:59

Deepak Lamichhane

101

score 0 · Answer 4 · answered May 14 '11 at 06:01

0

From my comment, you can upgrade rails by this command (I hope):

sudo gem install rails

answered May 14 '11 at 06:01

Blender

666

When I try install rails or update rails I get the following error:
bundler requires RubyGems version >= 1.3.6
– May 14 '11 at 06:07
Run dis: sudo gem update -V – Blender May 14 '11 at 06:08
I ran that and it seemed to work, but I still get the above error – May 14 '11 at 06:11

How do I upgrade to the newest version of Rails?

4 Answers4