# Using Rails 3 with Ruby 1.9

**URL:** <https://www.ruby-forum.com/t/using-rails-3-with-ruby-1-9/194399>\
**Category:** Rails\
**Created:** [September 3, 2010, 5:53pm UTC](https://www.ruby-forum.com/t/using-rails-3-with-ruby-1-9/194399 "2010-09-03T17:53:28Z")\
**Posts on this page:** 9\
**Page:** 1

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**Author:** ![cjnkns](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/c/c5a1d2/32.png) [@cjnkns](https://www.ruby-forum.com/u/cjnkns)\
**Post date:** [September 3, 2010, 5:53pm UTC](https://www.ruby-forum.com/t/using-rails-3-with-ruby-1-9/194399/1 "2010-09-03T17:53:28Z")

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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:** ![cjnkns](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/c/c5a1d2/32.png) [@cjnkns](https://www.ruby-forum.com/u/cjnkns)\
**Post date:** [September 3, 2010, 6:18pm UTC](https://www.ruby-forum.com/t/using-rails-3-with-ruby-1-9/194399/2 "2010-09-03T18:18:17Z")

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Carl J. 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:** ![cjnkns](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/c/c5a1d2/32.png) [@cjnkns](https://www.ruby-forum.com/u/cjnkns)\
**Post date:** [September 3, 2010, 6:28pm UTC](https://www.ruby-forum.com/t/using-rails-3-with-ruby-1-9/194399/3 "2010-09-03T18:28:21Z")

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Rails Surfer wrote:

> Carl J. 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:** ![cjnkns](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/c/c5a1d2/32.png) [@cjnkns](https://www.ruby-forum.com/u/cjnkns)\
**Post date:** [September 4, 2010, 5:26am UTC](https://www.ruby-forum.com/t/using-rails-3-with-ruby-1-9/194399/4 "2010-09-04T05:26:14Z")

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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:** ![cjnkns](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/c/c5a1d2/32.png) [@cjnkns](https://www.ruby-forum.com/u/cjnkns)\
**Post date:** [September 6, 2010, 4:39pm UTC](https://www.ruby-forum.com/t/using-rails-3-with-ruby-1-9/194399/5 "2010-09-06T16:39:47Z")

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Am 03.09.2010 um 18:28 schrieb Carl J.:

> Sorry, but what is rvm?

> **[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:** ![cjnkns](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/c/c5a1d2/32.png) [@cjnkns](https://www.ruby-forum.com/u/cjnkns)\
**Post date:** [September 3, 2010, 6:35pm UTC](https://www.ruby-forum.com/t/using-rails-3-with-ruby-1-9/194399/6 "2010-09-03T18:35:19Z")

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Carl J. wrote:

> Rails Surfer wrote:
> 
> > Carl J. 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/)

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

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**Author:** ![cjnkns](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/c/c5a1d2/32.png) [@cjnkns](https://www.ruby-forum.com/u/cjnkns)\
**Post date:** [September 6, 2010, 11:46pm UTC](https://www.ruby-forum.com/t/using-rails-3-with-ruby-1-9/194399/7 "2010-09-06T23:46:56Z")

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Felix SchÃ¤fer wrote:

> Am 03.09.2010 um 18:28 schrieb Carl J.:
> 
> > Sorry, but what is rvm?
> 
> [LMGTFY - Let Me Google That For You](http://lmgtfy.com/?q=rvm)
> 
> (it was the 3rd hit here, though I’d wager it might be the first in your  
> locale)
> 
> Felix

Clever.

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**Author:** ![cjnkns](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/c/c5a1d2/32.png) [@cjnkns](https://www.ruby-forum.com/u/cjnkns)\
**Post date:** [September 7, 2010, 9:17am UTC](https://www.ruby-forum.com/t/using-rails-3-with-ruby-1-9/194399/8 "2010-09-07T09:17:28Z")

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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

> **[\#200 Rails 3 Beta and RVM - RailsCasts](http://railscasts.com/episodes/200-rails-3-beta-and-rvm)**
>
> Short Ruby on Rails screencasts containing tips, tricks and tutorials. Great for both novice and experienced web developers.

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<div class="post-metadata">

**Author:** ![cjnkns](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/c/c5a1d2/32.png) [@cjnkns](https://www.ruby-forum.com/u/cjnkns)\
**Post date:** [September 6, 2010, 4:39pm UTC](https://www.ruby-forum.com/t/using-rails-3-with-ruby-1-9/194399/9 "2010-09-06T16:39:51Z")

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On Fri, Sep 3, 2010 at 8:53 AM, Carl J. [removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid)  
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?

cf [http://rubyonrails.org/download](http://rubyonrails.org/download)

“We recommend Ruby 1.8.7 or Ruby 1.9.2 for use with Rails.”

Seems pretty clear. 🙂

–  
Hassan S. ------------------------ removed\_email\_address@domain.invalid  
twitter: @hassan
