Error "Template hole element doesn't specify hole name." using report generator from template

Hello,

I made a Word template following the instructions from: Introduction to MATLAB Report Generator Video - MATLAB (mathworks.com)

You can see a template preview in the following image.

I used both inline and box hole to try all cases.

The code i'm trying to run is:

import mlreportgen.dom.*

doc = Document(WordFileName, 'docx',Template);

open(doc);

where "WordFileName" and "Template" are strings containing the files path.

When i run the code matlab returns the error:

"Error using mlreportgen.dom.Document/open

Template hole element doesn't specify hole name."

Can you help me?

Thanks,

Simone