uninitialized constant MysqlCompat::MysqlRes

rubyonrails-talk
1

Macbook 466 Mac OS X 10.6.3 Rails 2.3.5 Ruby 1.8.7 MySQL mysql-5.1.45-osx10.6-x86

after install mysql gem with "sudo env ARCHFLAGS="-arch i386" gem install mysql -- --with-mysql-config=/usr/local/mysql/bin/mysql_config "

use "rake db:migrate"

but always dispay the error msg:

rake aborted! uninitialized constant MysqlCompat::MysqlRes

what should I do?

2

rake aborted! uninitialized constant MysqlCompat::MysqlRes

what should I do?

Few things to check:

- Is the config file location you've given correct? - Have you checked your mysql logs for errors? - Looks like you might be using homebrew; I had an issue where I had a another mysql config file (from a previous installation) /etc/my.cnf which was being read before the mysql_config file - if so remove the my.cnf file. - Are you running the correct version i.e. maybe you need to install the mysql gem with -arch x86_64 instead.

Cheers Luke