# Undefined error on the 'Welcome Aboard' page

**URL:** <https://www.ruby-forum.com/t/undefined-error-on-the-welcome-aboard-page/177181>\
**Category:** Rails\
**Created:** [October 12, 2009, 10:59pm UTC](https://www.ruby-forum.com/t/undefined-error-on-the-welcome-aboard-page/177181 "2009-10-12T22:59:29Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![kousen](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/k/e19b73/32.png) [@kousen](https://www.ruby-forum.com/u/kousen)\
**Post date:** [October 12, 2009, 10:59pm UTC](https://www.ruby-forum.com/t/undefined-error-on-the-welcome-aboard-page/177181/1 "2009-10-12T22:59:29Z")

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Okay, so I just installed Ruby and rails on my pc. Windows XP service  
pak 3.

Got it running and went to the 127.0.0.1:3000 url and got the welcome  
aboard page, but when I click to check the Application Environment I get  
an undefined error.

any ideas

thanks

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<div class="post-metadata">

**Author:** ![kousen](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/k/e19b73/32.png) [@kousen](https://www.ruby-forum.com/u/kousen)\
**Post date:** [October 13, 2009, 12:02am UTC](https://www.ruby-forum.com/t/undefined-error-on-the-welcome-aboard-page/177181/2 "2009-10-13T00:02:43Z")

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On Mon, Oct 12, 2009 at 1:59 PM, Ken K.  
[removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid) wrote:

> Okay, so I just installed Ruby and rails on my pc. Windows XP service  
> pak 3.
> 
> Got it running and went to the 127.0.0.1:3000 url and got the welcome  
> aboard page, but when I click to check the Application Environment I get  
> an undefined error.
> 
> any ideas

The first thing to do is look in your app’s log file.

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

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<div class="post-metadata">

**Author:** ![kousen](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/k/e19b73/32.png) [@kousen](https://www.ruby-forum.com/u/kousen)\
**Post date:** [October 13, 2009, 12:17am UTC](https://www.ruby-forum.com/t/undefined-error-on-the-welcome-aboard-page/177181/3 "2009-10-13T00:17:56Z")

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Most common first problem is that you haven’t got the database  
enabled.  
Check the file “config/database.yml” and you will see something like:

# SQLite version 3.x

# gem install sqlite3-ruby (not necessary on OS X Leopard)

development:  
adapter: sqlite3  
database: db/development.sqlite3  
pool: 5  
timeout: 5000

In order for this to work you need both the sqlite3 executable and the  
sqlite3-ruby gem.

On Oct 12, 4:59 pm, Ken K. [removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid)