Uninitialized constant MysqlCompat::MysqlRes

Note: I'm using Mac OS X Version: 10.6.3

Open the Terminal.

First removed all mysql gems:

• gem uninstall mysql

After removing the mysql gem run the following:

sudo env ARCHFLAGS="-arch x86_64" gem install mysql -- --with-mysql-config=/usr/local/mysql/bin/mysql_config

Uninstall MySQL on Mac OS X

NOTE: This will delete all your databases.

Open the Terminal then do the following:

• sudo rm /usr/local/mysql
• sudo rm -rf /usr/local/mysql*
• sudo rm -rf /Library/StartupItems/MySQLCOM
• sudo rm -rf /Library/PreferencePanes/My*
• sudo rm -rf ~/Library/PreferencePanes/My*
• edit /etc/hostconfig and remove the line MYSQLCOM=-YES-
• sudo rm -rf /Library/Receipts/mysql*
• sudo rm -rf /Library/Receipts/MySQL*
• sudo rm -rf /var/db/receipts/com.mysql.*