Cannot parse AMESim fmu xml file

[LMerCy]

When i use this project to call fmu generated by AMESim (FMI 2.0 Co-simulation ), Why this happens:
Parser error. Depth wrong after parsing sub-tree for Tool
What does this error mean?

[cxbrooks]

The error message comes from https://github.com/cxbrooks/fmusdk2/blob/master/fmu20/src/shared/parser/XmlParser.cpp line 159:

void XmlParser::parseChildElements(Element *el) {
    int elementIsEmpty = xmlTextReaderIsEmptyElement(xmlReader);
    if (elementIsEmpty == -1) {
        throw XmlParserException("Error parsing xml file '%s'", xmlPath);
    } else if (elementIsEmpty == 1) {
        return;
    }

    bool ret = readNextInXml();
    while (ret  && xmlTextReaderNodeType(xmlReader) != XML_READER_TYPE_END_ELEMENT) {
        if (xmlTextReaderNodeType(xmlReader) == XML_READER_TYPE_ELEMENT) {
            const char *localName = (char *)xmlTextReaderConstLocalName(xmlReader);
            int depthBefore = xmlTextReaderDepth(xmlReader);
            int isEmptyElement = xmlTextReaderIsEmptyElement(xmlReader);
            el->handleElement(this, localName, isEmptyElement);
            if (!isEmptyElement) {
                int depthAfter = xmlTextReaderDepth(xmlReader);
                if (depthBefore != depthAfter) {
                    throw XmlParserException("Parser error. Depth wrong after parsing sub-tree for %s.", localName);
                }
            }
        }
        ret = readNextInXml();
    }
    if (!ret) {
        throw XmlParserException("Error parsing xml file '%s'", xmlPath);
    }
}

I suggest unzipping the .fmu file and running an xml validator on the modelDescription.xml file. See https://en.wikipedia.org/wiki/XML_validation for links to xmllint and an online validator.

If your modelDescription.xml file is valid .xml, then there is probably a bug somewhere in the fmusdk code. To fix this, you would need to add print statements to the code to see where in the modelDescription.xml file the problematic section is located.

If your modelDescription.xml file is valid .xml, then it would help if you uploaded the modelDescription.xml file.

However, I'm retired, so I'm not that interested in fixing bugs myself in this code, though I'd accept well executed push requests.

https://github.com/cxbrooks/fmusdk2 says:

Port of FMUSDK2.0.3 from QTronic (http://www.qtronic.de/doc/fmusdk.zip) to Mac OS X and Linux.

This code is no longer being maintained, please take a look at

https://resources.qtronic.de/fmusdk/FmuSdk_reference.html

for more recent versions.

So, you could also try the qtronic.de version of FmuSdk, which is newer than this version.

If your modelDescription.xml file is invalid .xml, then try FmuSdk, then follow up with Siemens, the manufacturers of AMESim.

[LMerCy]

@cxbrooks thanks for your help! The modelDescription.xml is valid, i have solved the problem with qtronic.de version of FmuSdk. It seems that there are some bugs during parsing xml.