• category : XSD_SCHEMA_ERROR
• code :SAXParseException
• message : Schema validation failed; XML does not comply with UBL 2.1 standards in line with ZATCA specifications. ERROR: org.xml.sax.SAXParseException; lineNumber: 3; columnNumber: 2167; cvc-elt.1.a: Cannot find the declaration of element 'office:document'.

Form: Invoices

please help to resolve the above errors, in v17 i am getting the file in txt then i have to convert this file to xml then once i upload into zatca portal getting above errors.