Peter Johnson [http://community.jboss.org/people/peterj] replied to the discussion "I have got this error configuring jboss4.2.3 with mysql" To view the discussion, visit: http://community.jboss.org/message/554200#554200 -------------------------------------------------------------- Looks like you named your datasource something other than DefaultDS. You will have to look through the various *-service.xml files changing all references to DefaultDS to the datasource name you used for MySQL. -------------------------------------------------------------- Reply to this message by going to Community [http://community.jboss.org/message/554200#554200] Start a new discussion in Datasource Configuration at Community [http://community.jboss.org/choose-container!input.jspa?contentType=1&...]