# ROR3.beta4 on ubuntu10.04 error

**URL:** <https://www.ruby-forum.com/t/ror3-beta4-on-ubuntu10-04-error/189937>\
**Category:** Rails\
**Created:** [June 10, 2010, 8:13am UTC](https://www.ruby-forum.com/t/ror3-beta4-on-ubuntu10-04-error/189937 "2010-06-10T08:13:12Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![c2h2](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/c/ec9cab/32.png) [@c2h2](https://www.ruby-forum.com/u/c2h2)\
**Post date:** [June 10, 2010, 8:13am UTC](https://www.ruby-forum.com/t/ror3-beta4-on-ubuntu10-04-error/189937/1 "2010-06-10T08:13:12Z")

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hi, im trying to experiment a rails3 on my ubuntu10.04 32bit, with  
installation guide from rails official website

have installed all packages, when i try to run script/rails server

it showed my following errors:

root@c2h2vaio:~/a# script/rails s  
/root/a/config/boot.rb:9:in `rescue in <top (required)>': uninitialized constant Bundler (NameError) from /root/a/config/boot.rb:5:in`\<top (required)\>’  
from script/rails:5:in `require' from script/rails:5:in`’

anyone got any ideas? or where should i post this?

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<div class="post-metadata">

**Author:** ![c2h2](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/c/ec9cab/32.png) [@c2h2](https://www.ruby-forum.com/u/c2h2)\
**Post date:** [June 10, 2010, 8:14am UTC](https://www.ruby-forum.com/t/ror3-beta4-on-ubuntu10-04-error/189937/2 "2010-06-10T08:14:23Z")

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btw my ruby version is 1.9.1

ruby -v  
ruby 1.9.1p378 (2010-01-10 revision 26273) [i486-linux]

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<div class="post-metadata">

**Author:** ![c2h2](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/c/ec9cab/32.png) [@c2h2](https://www.ruby-forum.com/u/c2h2)\
**Post date:** [June 10, 2010, 12:21pm UTC](https://www.ruby-forum.com/t/ror3-beta4-on-ubuntu10-04-error/189937/3 "2010-06-10T12:21:25Z")

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Hi Yiling,

Ruby 1.9.1 is not supported, better upgrade to Ruby 1.9.2-head.

More information here:

> **[rails.info](http://guides.rails.info/3_0_release_notes.html#rails-3-requires-ruby-187)**
>
> Ruby on Rails,Rails Tutorial,Ruby Basics,Rails 4,Bar Rails,Rail

cheers

On Thu, Jun 10, 2010 at 3:14 AM, Yiling C. [removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid)  
wrote:

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–  
Diego Carrion  
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