After checking out the repository you need to add libraries : Servoy libraries : - In {Servoy_Home}/application_server/lib add the following jars and name it (arbitrary name) Servoy : j2db.jar,j2dbdev.jar,commons-httpclient.jar,joda-time.jar,wicket.jar, wicket-calendar.jar,wicket-extentions.jar,servlet-api.jar