# Using Rails 3 with Ruby 1.9

**URL:** <https://discuss.rubyonrails.org/t/using-rails-3-with-ruby-1-9/54102>\
**Category:** rubyonrails-talk\
**Created:** [September 3, 2010, 3:53pm UTC](https://discuss.rubyonrails.org/t/using-rails-3-with-ruby-1-9/54102 "2010-09-03T15:53:28Z")\
**Posts on this page:** 9\
**Page:** 1

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**Author:** ![11155](https://avatars.discourse-cdn.com/v4/letter/1/d26b3c/32.png) [@11155](https://discuss.rubyonrails.org/u/11155)\
**Post date:** [September 3, 2010, 3:53pm UTC](https://discuss.rubyonrails.org/t/using-rails-3-with-ruby-1-9/54102/1 "2010-09-03T15:53:28Z")

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Can we use Ruby 1.9 and Rails 3 together? Last time I tried this Rails became angry and told me I couldn't (or shouldn't).

So, maybe I am missing the blog entry on this subject, but when will Ruby1.9 and Rails 3 play nice?

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**Author:** ![hassan](https://sea2.discourse-cdn.com/rubyonrails/user_avatar/discuss.rubyonrails.org/hassan/32/714_2.png) [@hassan](https://discuss.rubyonrails.org/u/hassan)\
**Post date:** [September 3, 2010, 3:57pm UTC](https://discuss.rubyonrails.org/t/using-rails-3-with-ruby-1-9/54102/2 "2010-09-03T15:57:00Z")

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cf \<[http://rubyonrails.org/download&gt](http://rubyonrails.org/download&gt);

&nbsp;&nbsp;"We recommend Ruby 1.8.7 or Ruby 1.9.2 for use with Rails."

Seems pretty clear. 🙂

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**Author:** ![11155](https://avatars.discourse-cdn.com/v4/letter/1/d26b3c/32.png) [@11155](https://discuss.rubyonrails.org/u/11155)\
**Post date:** [September 3, 2010, 4:18pm UTC](https://discuss.rubyonrails.org/t/using-rails-3-with-ruby-1-9/54102/3 "2010-09-03T16:18:17Z")

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Carl Jenkins wrote:

> Can we use Ruby 1.9 and Rails 3 together? Last time I tried this Rails became angry and told me I couldn't (or shouldn't).
> 
> So, maybe I am missing the blog entry on this subject, but when will Ruby1.9 and Rails 3 play nice?

Yeah...But use 1.9.2 and rvm

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**Author:** ![11155](https://avatars.discourse-cdn.com/v4/letter/1/d26b3c/32.png) [@11155](https://discuss.rubyonrails.org/u/11155)\
**Post date:** [September 3, 2010, 4:28pm UTC](https://discuss.rubyonrails.org/t/using-rails-3-with-ruby-1-9/54102/4 "2010-09-03T16:28:21Z")

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Rails Surfer wrote:

> Carl Jenkins wrote:
> 
> > Can we use Ruby 1.9 and Rails 3 together? Last time I tried this Rails became angry and told me I couldn't (or shouldn't).
> > 
> > So, maybe I am missing the blog entry on this subject, but when will Ruby1.9 and Rails 3 play nice?
> 
> Yeah...But use 1.9.2 and rvm

Sorry, but what is rvm?

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**Author:** ![Felix\_Schafer](https://avatars.discourse-cdn.com/v4/letter/f/7993a0/32.png) [@Felix\_Schafer](https://discuss.rubyonrails.org/u/Felix_Schafer)\
**Post date:** [September 3, 2010, 4:32pm UTC](https://discuss.rubyonrails.org/t/using-rails-3-with-ruby-1-9/54102/5 "2010-09-03T16:32:03Z")

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> **[LMGTFY - Let Me Google That For You](https://lmgtfy.app/?q=rvm)**
>
> For all those people who find it more convenient to bother you with their question rather than to Google it for themselves.

(it was the 3rd hit here, though I'd wager it might be the first in your locale)

Felix

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**Author:** ![11155](https://avatars.discourse-cdn.com/v4/letter/1/d26b3c/32.png) [@11155](https://discuss.rubyonrails.org/u/11155)\
**Post date:** [September 3, 2010, 4:35pm UTC](https://discuss.rubyonrails.org/t/using-rails-3-with-ruby-1-9/54102/6 "2010-09-03T16:35:19Z")

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Carl Jenkins wrote:

> Rails Surfer wrote:
> 
> > Carl Jenkins wrote:
> > 
> > > Can we use Ruby 1.9 and Rails 3 together? Last time I tried this Rails became angry and told me I couldn't (or shouldn't).
> > > 
> > > So, maybe I am missing the blog entry on this subject, but when will Ruby1.9 and Rails 3 play nice?
> > 
> > Yeah...But use 1.9.2 and rvm
> 
> Sorry, but what is rvm?

Ruby version manager

[http://rvm.beginrescueend.com/](http://rvm.beginrescueend.com/)

It´s not needed to install 1.9.2 but it can make life easier.

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**Author:** ![11155](https://avatars.discourse-cdn.com/v4/letter/1/d26b3c/32.png) [@11155](https://discuss.rubyonrails.org/u/11155)\
**Post date:** [September 4, 2010, 3:26am UTC](https://discuss.rubyonrails.org/t/using-rails-3-with-ruby-1-9/54102/7 "2010-09-04T03:26:14Z")

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Rails Surfer wrote:

> > Sorry, but what is rvm?

rvm is a god-send. It lets you maintain multiple ruby installs and switch amongst them on command (among other things, like installed gem sets), and you should definitely employ it.

I found this link enormously helpful (mainly because I use Ubuntu 10.04)

> **[How to install RVM on Ubuntu 10.04](http://www.christopherirish.com/2010/08/25/how-to-install-rvm-on-ubuntu-10-04/)**
>
> I’ve heard people describe frustrations they had in getting Rails 3 setup on Ubuntu 10.04 with Ruby 1.9.2. I’m going to outline the steps I’ve taken to do this. Let’s get started installing RVM. It should be noted that I

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**Author:** ![11155](https://avatars.discourse-cdn.com/v4/letter/1/d26b3c/32.png) [@11155](https://discuss.rubyonrails.org/u/11155)\
**Post date:** [September 6, 2010, 9:46pm UTC](https://discuss.rubyonrails.org/t/using-rails-3-with-ruby-1-9/54102/8 "2010-09-06T21:46:56Z")

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Felix Schäfer wrote:

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**Author:** ![radhames\_brito](https://avatars.discourse-cdn.com/v4/letter/r/8edcca/32.png) [@radhames\_brito](https://discuss.rubyonrails.org/u/radhames_brito)\
**Post date:** [September 6, 2010, 10:45pm UTC](https://discuss.rubyonrails.org/t/using-rails-3-with-ruby-1-9/54102/9 "2010-09-06T22:45:38Z")

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ruby version manager, it install serverral ruby versions in isolated environments so that you can have several version running with their own gem list and all, that way you can test new versions of rails if you want and not put your current system ruby environment in danger .

more info here

[http://railscasts.com/episodes/200-rails-3-beta-and-rvm](http://railscasts.com/episodes/200-rails-3-beta-and-rvm)
