# MySQL connection issue

**URL:** <https://www.ruby-forum.com/t/mysql-connection-issue/117585>\
**Category:** Ruby\
**Created:** [October 18, 2007, 10:18am UTC](https://www.ruby-forum.com/t/mysql-connection-issue/117585 "2007-10-18T10:18:31Z")\
**Posts on this page:** 2\
**Page:** 1

<div class="post-metadata">

**Author:** ![hbotadra](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/h/e9bcb4/32.png) [@hbotadra](https://www.ruby-forum.com/u/hbotadra)\
**Post date:** [October 18, 2007, 10:18am UTC](https://www.ruby-forum.com/t/mysql-connection-issue/117585/1 "2007-10-18T10:18:31Z")

</div>

Hey All,

I am getting the following error in my Ruby Script:

* * *

## mysql\_adapter.rb:322:in `connect': undefined method`[]’ for nil:NilClass (NoMethodError)

Essentially it occurs at a point when the script tries to connect to the  
MySQL DB.

Sample code:

* * *

class Test \< ActiveRecord::Base  
def self.foo  
end  
end

## Test.transaction do # =\> Point of error Test.foo # =\> Another point of error occu… end

Any help greatly appreciated. Thanks.

—Harnish

---

<div class="post-metadata">

**Author:** ![hbotadra](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/h/e9bcb4/32.png) [@hbotadra](https://www.ruby-forum.com/u/hbotadra)\
**Post date:** [October 18, 2007, 11:02am UTC](https://www.ruby-forum.com/t/mysql-connection-issue/117585/2 "2007-10-18T11:02:49Z")

</div>

> * * *
> 
> ## mysql\_adapter.rb:322:in `connect': undefined method`[]’ for nil:NilClass (NoMethodError)
> 
> Essentially it occurs at a point when the script tries to connect to  
> the  
> MySQL DB.

Is the mysql gem installed?