From: cristian cristian Date: 2013-08-02T20:40:24+09:00 Subject: Re: Beginners problem with database and datamapper Thank you for your help and patience Joel. I have done all steps mentioned above and still I get an error message. I give up . I can continue to work with datamapper that works for me. Maybe I'll try active record on my mac when I get home. Br cristian -- Posted via http://www.ruby-forum.com/.