# Mysql.so errors with MySQL 5.0.77

**URL:** <https://www.ruby-forum.com/t/mysql-so-errors-with-mysql-5-0-77/161234>\
**Category:** Rails\
**Created:** [February 24, 2009, 3:31pm UTC](https://www.ruby-forum.com/t/mysql-so-errors-with-mysql-5-0-77/161234 "2009-02-24T15:31:11Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![reggieb](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/r/3e96dc/32.png) [@reggieb](https://www.ruby-forum.com/u/reggieb)\
**Post date:** [February 24, 2009, 3:31pm UTC](https://www.ruby-forum.com/t/mysql-so-errors-with-mysql-5-0-77/161234/1 "2009-02-24T15:31:11Z")

</div>

I have updated Rails to 2.2.2 and then found I had to update MySQL to  
work with the mysql gem. However, I’ve found that with MySQL 5.0.77, I  
get this error:

LoadError (126: The specified module could not be found. -  
c:/ruby/lib/ruby/gems/1.8/gems/mysql-2.7.3-x86-mswin32/ext/mysql.so)

Google search suggested removing the mysql.so but that didn’t fix the  
problem. However, downgrading MySQL to version 5.0.18 (the version I had  
running on a development PC that wasn’t getting an error) fixed the  
problem.

Another thread:

[http://groups.google.com/group/rubyonrails-talk/browse\_thread/thread/55dd057c41a72fc5](http://groups.google.com/group/rubyonrails-talk/browse_thread/thread/55dd057c41a72fc5)

Suggests problems with MySQL 5.0.27. It looks to me that the mysql gem  
on Windows systems is very dependant on MySQL version.

OS Windows 2003 server.