exportToMSProject Unknown error

when I use exportToMSProject the xml contains the error

Unknown error

POST https://gantt-project.azurewebsites.net/export/jsonToXml, form:

my code:

gantt.exportToMSProject({
skip_circular_links: false,
name: ‘custom.xml’
});

Hello Dann,
Unfortunately, I couldn’t reproduce the issue in the following sample:
https://docs.dhtmlx.com/gantt/samples/08_api/08_export_other.html

Probably, the issue is related to Gantt configuration, but it is hard to suggest what might be wrong as I don’t see your code.
Please, reproduce the issue in the snippet, then click on the “Share” button and send me the link:
https://snippet.dhtmlx.com/38ee1b370
Or send me a ready demo with all the necessary Javascript and CSS files so that I can reproduce the issue locally.

Yes, the strangest thing is that I don’t even structure xml

custom (3).xml (9.2 KB)
gantt (4).xml (58.2 KB)