我在做thistutorial我收到以下错误:InitialSessionFactorycreationfailed.org.hibernate.InvalidMappingException:UnabletoreadXML这里是完整的错误信息:Nov18,20129:52:46PMorg.hibernate.internal.util.xml.ErrorLoggerlogErrorsERROR:HHH000196:ErrorparsingXML(2):Elementtype"generate"mustbedeclared.Nov18,20129:52:46PMorg.hibernat