# Rails Error

**URL:** <https://www.ruby-forum.com/t/rails-error/165556>\
**Category:** Rails\
**Created:** [April 15, 2009, 9:39am UTC](https://www.ruby-forum.com/t/rails-error/165556 "2009-04-15T09:39:36Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![fadil](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/f/a8b319/32.png) [@fadil](https://www.ruby-forum.com/u/fadil)\
**Post date:** [April 15, 2009, 9:39am UTC](https://www.ruby-forum.com/t/rails-error/165556/1 "2009-04-15T09:39:36Z")

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I’m totally new with ruby on rails  
My machine running ubuntu 8.10 and i have installed ruby 1.8.7,  
rubygems 1.3.1 and rails 2.3.2, sqlite3, postfix adn subversion.  
The problem is when i want to create a simple blog application this  
error came out.  
fadil@fadil-laptop:~$ sudo rails blog  
/var/lib/gems/1.9.0/gems/activesupport-2.3.2/lib/active\_support/  
core\_ext/uri.rb:8:in `<top (required)>': uninitialized constant URI::Parser (NameError) from /var/lib/gems/1.9.0/gems/activesupport-2.3.2/lib/active_support/ core_ext.rb:3:in`require’  
from /var/lib/gems/1.9.0/gems/activesupport-2.3.2/lib/active\_support/  
core\_ext.rb:3:in `block in <top (required)>' from /var/lib/gems/1.9.0/gems/activesupport-2.3.2/lib/active_support/ core_ext.rb:1:in`each’  
from /var/lib/gems/1.9.0/gems/activesupport-2.3.2/lib/active\_support/  
core\_ext.rb:1:in `<top (required)>' from /var/lib/gems/1.9.0/gems/activesupport-2.3.2/lib/ active_support.rb:55:in`require’  
from /var/lib/gems/1.9.0/gems/activesupport-2.3.2/lib/  
active\_support.rb:55:in `<top (required)>' from /var/lib/gems/1.9.0/gems/rails-2.3.2/lib/rails_generator.rb: 28:in`require’  
from /var/lib/gems/1.9.0/gems/rails-2.3.2/lib/rails\_generator.rb:  
28:in `<top (required)>' from /var/lib/gems/1.9.0/gems/rails-2.3.2/bin/rails:14:in`require’  
from /var/lib/gems/1.9.0/gems/rails-2.3.2/bin/rails:14:in `<top (required)>' from /usr/bin/rails:19:in`load’  
from /usr/bin/rails:19:in `’  
fadil@fadil-laptop:~$  
Help me please.  
Regards.  
Fadil

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<div class="post-metadata">

**Author:** ![fadil](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/f/a8b319/32.png) [@fadil](https://www.ruby-forum.com/u/fadil)\
**Post date:** [April 15, 2009, 10:07am UTC](https://www.ruby-forum.com/t/rails-error/165556/2 "2009-04-15T10:07:45Z")

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On Apr 15, 4:55 am, fadil [removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid) wrote:

> I’m totally new with ruby on rails  
> My machine running ubuntu 8.10 and i have installed ruby 1.8.7,  
> rubygems 1.3.1 and rails 2.3.2, sqlite3, postfix adn subversion.  
> The problem is when i want to create a simple blog application this  
> error came out.

That stack trace looks you are using ruby 1.9.0 which you almost  
certainly don’t want to use (1.9.0 was the development version of what  
was eventually released as ruby 1.9.1)

Fred