MissingSourceFile (no such file to load -- mysql)

I'm having problem trying to get the app running properly due to it not
finding MySQL.It seems that the app can't find mysql.

This error shows up on my production log: MissingSourceFile (no such
file to load -- mysql)

try reinstalling the mysql gem :

sudo gem install mysql --with-mysql-config=/usr/local/mysql/bin/
mysql_config

adapt the mysql-config path according to your system.

Sheldon