Problem with db:test:prepare


I am learning Rails from “Agile Web D. with Rails” (third
edition) by implementing the Depot example. This is an excellent book to
learn Rails.

However, I have a problem in the chapter 14, Testing, in which I had to
run the command: db:test:prepare. It gave the following result;

  in C:/MyProjects/dev/webshop)
  rake aborted!
  Task not supported by 'jdbcmysql'
  rake aborted!
  invalid meta-code syntax: /C:\MyProjects\dev\webshop\Rakefile/

I am using the Netbeans 6.8 IDE with WeBrick as the application server.

Can anyone give me a clue how to solve that problem?

Thanks in advance,