MySQL + Snow Leopard + 32位+ Ruby on Rails =未初始化的常量MysqlCompat :: MysqlRes（帮助！）

Question

So i'm running Snow Leopard on a BlackBook. I'm attempting to get rake db:migrate to work with this project but I get the MysqlCompat::MysqlRes error. Is there any special way to install or build the gem and/or the actual MySQL binaries themselves to get this to work on my machine?

Answer 1

Something like this should do the trick:

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

You can find your mysql_config with locate bin/mysql_config -- and use that path instead of the above if it's different.

If that doesn't work, here's a more complicated answer:

http://accidentaltechnologist.com/apple/fixing-uninitialized-constant-mysqlcompatmysqlres-error-on-snow-leopard/