# RuntimeError (Mysql not loaded)

**URL:** <https://www.ruby-forum.com/t/runtimeerror-mysql-not-loaded/154526>\
**Category:** Rails\
**Created:** [December 1, 2008, 9:36am UTC](https://www.ruby-forum.com/t/runtimeerror-mysql-not-loaded/154526 "2008-12-01T09:36:25Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![prem](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/p/8797f3/32.png) [@prem](https://www.ruby-forum.com/u/prem)\
**Post date:** [December 1, 2008, 9:36am UTC](https://www.ruby-forum.com/t/runtimeerror-mysql-not-loaded/154526/1 "2008-12-01T09:36:25Z")

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Any idea why mysql gem would not load properly ?

log/production.log:

RuntimeError (Mysql not loaded):  
/usr/lib/ruby/gems/1.8/gems/activerecord-2.1.2/lib/active\_record/  
connection\_adapters/mysql\_adapter.rb:7:in `define\_all\_hashes\_method!’

[XXXX]$ irb  
irb(main):001:0\> require ‘rubygems’  
=\> true  
irb(main):002:0\> require ‘mysql’  
=\> true

Thanks,  
Prem.