In Japser Studio, i have a file design jrxml, with a custom visualization, Preview all thing normal. But when compileReport this file design, have exception: Version jasperreports-6.4.3.jar: net.sf.jasperreports.engine.JRRuntimeException: Unknown entity http://www.jaspersoft.com/cvcomponent/component.xsd, not loading. Version jasperreports-6.1.0.jar: org.xml.sax.SAXParseException; White spaces are required between publicId and systemId Any one help me? Thanks!