I want to validate XML with XSD: I got some errors about this NODE ......
<iedu:instEducativas version="1.0" xsi:schemaLocation="http://www.sat.gob.mx/iedu http://www.sat.gob.mx/sitio_internet/cfd/iedu/iedu.xsd" rfcPago="TDI060429R17" autRVOE="1" nivelEducativo="Secundaria" CURP="AOBA980525HSLBRN08" nombreAlumno="ABOYTE BARAZA ANA PAOLA" xmlns:iedu="http://www.sat.gob.mx/iedu"/>
how ca I tell to the XSD that the node iedu:instEducativas is not required.