After setting up a RoR application, and searching online in a variety of places to figure out what

$:.push("/home/username/ruby/gems")

actually refers to, I was able to run rake db:migrate to configure my application. However, after attempting to access the application from the browser, I encountered the following error in the logs.

/!\ FAILSAFE /!\ Sun Jan 10 14:14:25 -0600 2010
Status: 500 Internal Server Error
no such file to load -- mysql

I am able to access the database via the command line (SSH) as well as run rake tasks related to database management. In addition, I was able to access the console, and able to create/find models.

Has anyone else experienced this? Can anyone offer a solution?