I got error on Odoo 14 -> Report Error <Fault 0: 'Failed to parse XML-RPC request: Unknown type: nil'>

[PsKs]

I use jasper report with parameter by follow in this link Print the Jasper report with parameter:

When I press button it throw error Report Error <Fault 0: 'Failed to parse XML-RPC request: Unknown type: nil'>
but if I generate report with no param (eg. xpath) it work.

Please advise me.

This is log server

1 [XML-RPC-0] ERROR org.apache.xmlrpc.server.XmlRpcStreamServer - execute: Error while performing request org.apache.xmlrpc.XmlRpcException: Failed to parse XML-RPC request: Unknown type: nil at org.apache.xmlrpc.server.XmlRpcStreamServer.getRequest(XmlRpcStreamServer.java:66) at org.apache.xmlrpc.server.XmlRpcStreamServer.execute(XmlRpcStreamServer.java:190) at org.apache.xmlrpc.webserver.Connection.run(Connection.java:205) at org.apache.xmlrpc.util.ThreadPool$Poolable$1.run(ThreadPool.java:68) Caused by: org.xml.sax.SAXParseException; lineNumber: 52; columnNumber: 14; Unknown type: nil at org.apache.xmlrpc.parser.RecursiveTypeParserImpl.startElement(RecursiveTypeParserImpl.java:122) at org.apache.xmlrpc.parser.MapParser.startElement(MapParser.java:155) at org.apache.xmlrpc.parser.RecursiveTypeParserImpl.startElement(RecursiveTypeParserImpl.java:133) at org.apache.xmlrpc.parser.XmlRpcRequestParser.startElement(XmlRpcRequestParser.java:122) at java.xml/com.sun.org.apache.xerces.internal.parsers.AbstractSAXParser.startElement(AbstractSAXParser.java:510) at java.xml/com.sun.org.apache.xerces.internal.parsers.AbstractXMLDocumentParser.emptyElement(AbstractXMLDocumentParser.java:183) at java.xml/com.sun.org.apache.xerces.internal.impl.XMLNSDocumentScannerImpl.scanStartElement(XMLNSDocumentScannerImpl.java:351) at java.xml/com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl$FragmentContentDriver.next(XMLDocumentFragmentScannerImpl.java:2710) at java.xml/com.sun.org.apache.xerces.internal.impl.XMLDocumentScannerImpl.next(XMLDocumentScannerImpl.java:605) at java.xml/com.sun.org.apache.xerces.internal.impl.XMLNSDocumentScannerImpl.next(XMLNSDocumentScannerImpl.java:112) at java.xml/com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl.scanDocument(XMLDocumentFragmentScannerImpl.java:534) at java.xml/com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(XML11Configuration.java:888) at java.xml/com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(XML11Configuration.java:824) at java.xml/com.sun.org.apache.xerces.internal.parsers.XMLParser.parse(XMLParser.java:141) at java.xml/com.sun.org.apache.xerces.internal.parsers.AbstractSAXParser.parse(AbstractSAXParser.java:1216) at java.xml/com.sun.org.apache.xerces.internal.jaxp.SAXParserImpl$JAXPSAXParser.parse(SAXParserImpl.java:635) at org.apache.xmlrpc.server.XmlRpcStreamServer.getRequest(XmlRpcStreamServer.java:60) ... 3 more Caused by: org.xml.sax.SAXParseException; lineNumber: 52; columnNumber: 14; Unknown type: nil at org.apache.xmlrpc.parser.RecursiveTypeParserImpl.startElement(RecursiveTypeParserImpl.java:122) at org.apache.xmlrpc.parser.MapParser.startElement(MapParser.java:155) at org.apache.xmlrpc.parser.RecursiveTypeParserImpl.startElement(RecursiveTypeParserImpl.java:133) at org.apache.xmlrpc.parser.XmlRpcRequestParser.startElement(XmlRpcRequestParser.java:122) at java.xml/com.sun.org.apache.xerces.internal.parsers.AbstractSAXParser.startElement(AbstractSAXParser.java:510) at java.xml/com.sun.org.apache.xerces.internal.parsers.AbstractXMLDocumentParser.emptyElement(AbstractXMLDocumentParser.java:183) at java.xml/com.sun.org.apache.xerces.internal.impl.XMLNSDocumentScannerImpl.scanStartElement(XMLNSDocumentScannerImpl.java:351) at java.xml/com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl$FragmentContentDriver.next(XMLDocumentFragmentScannerImpl.java:2710) at java.xml/com.sun.org.apache.xerces.internal.impl.XMLDocumentScannerImpl.next(XMLDocumentScannerImpl.java:605) at java.xml/com.sun.org.apache.xerces.internal.impl.XMLNSDocumentScannerImpl.next(XMLNSDocumentScannerImpl.java:112) at java.xml/com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl.scanDocument(XMLDocumentFragmentScannerImpl.java:534) at java.xml/com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(XML11Configuration.java:888) at java.xml/com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(XML11Configuration.java:824) at java.xml/com.sun.org.apache.xerces.internal.parsers.XMLParser.parse(XMLParser.java:141) at java.xml/com.sun.org.apache.xerces.internal.parsers.AbstractSAXParser.parse(AbstractSAXParser.java:1216) at java.xml/com.sun.org.apache.xerces.internal.jaxp.SAXParserImpl$JAXPSAXParser.parse(SAXParserImpl.java:635) at org.apache.xmlrpc.server.XmlRpcStreamServer.getRequest(XmlRpcStreamServer.java:60) at org.apache.xmlrpc.server.XmlRpcStreamServer.execute(XmlRpcStreamServer.java:190) at org.apache.xmlrpc.webserver.Connection.run(Connection.java:205) at org.apache.xmlrpc.util.ThreadPool$Poolable$1.run(ThreadPool.java:68)

[baydevincent]

there is null value in parameter