# Ruby 1.9 problem

**URL:** <https://www.ruby-forum.com/t/ruby-1-9-problem/167635>\
**Category:** Rails\
**Created:** [May 10, 2009, 5:56pm UTC](https://www.ruby-forum.com/t/ruby-1-9-problem/167635 "2009-05-10T17:56:51Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![giga](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/g/b9bd4f/32.png) [@giga](https://www.ruby-forum.com/u/giga)\
**Post date:** [May 10, 2009, 5:56pm UTC](https://www.ruby-forum.com/t/ruby-1-9-problem/167635/1 "2009-05-10T17:56:51Z")

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What wrong:

# rails test

/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 /usr/lib/ruby1.9/gems/1.9.0/gems/rails-2.3.2/lib/rails_generator.rb:28:in`require’  
from  
/usr/lib/ruby1.9/gems/1.9.0/gems/rails-2.3.2/lib/rails\_generator.rb:28:in  
`<top (required)>' from /usr/lib/ruby1.9/gems/1.9.0/gems/rails-2.3.2/bin/rails:14:in`require’  
from /usr/lib/ruby1.9/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 `’

---

<div class="post-metadata">

**Author:** ![giga](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/g/b9bd4f/32.png) [@giga](https://www.ruby-forum.com/u/giga)\
**Post date:** [May 10, 2009, 9:01pm UTC](https://www.ruby-forum.com/t/ruby-1-9-problem/167635/2 "2009-05-10T21:01:02Z")

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Fresh M. wrote:

> What wrong:
> 
> # rails test
> 
> /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)

You’re using a ruby version that isn’t supported by rails?

---

<div class="post-metadata">

**Author:** ![giga](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/g/b9bd4f/32.png) [@giga](https://www.ruby-forum.com/u/giga)\
**Post date:** [May 10, 2009, 9:02pm UTC](https://www.ruby-forum.com/t/ruby-1-9-problem/167635/3 "2009-05-10T21:02:00Z")

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7stud – wrote:

> Fresh M. wrote:
> 
> > What wrong:
> > 
> > # rails test
> > 
> > /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)
> 
> You’re using a ruby version that isn’t supported by rails?

…or by one of your gems?

---

<div class="post-metadata">

**Author:** ![giga](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/g/b9bd4f/32.png) [@giga](https://www.ruby-forum.com/u/giga)\
**Post date:** [May 10, 2009, 10:14pm UTC](https://www.ruby-forum.com/t/ruby-1-9-problem/167635/4 "2009-05-10T22:14:35Z")

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On May 10, 4:56 pm, Fresh M. [removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid)  
wrote:

> What wrong:
> 
> # rails test
> 
> /var/lib/gems/1.9.0/gems/activesupport-2.3.2/lib/active\_support/core\_ext/ur i.rb:8:in

Don’t use 1.9.0 - it’s an unstable development version. The first  
stable version of ruby 1.9 is 1.9.1

Fred