Delphi XML Data Bindings Error: "Unknown Data Type"

I am trying to import an XSD file with some complex files from an imported schema. The XML Data Binding Wizard gives me an "Unknown Data Type" error. I see that this problem is mentioned in several forums, but there is no solution.

This is the file I'm trying to import. There are other necessary files here .

Is there a workaround or alternative tool for creating XML classes for Delphi XE?

Edit: This question may be a duplicate of this, at least in part. I did not find it for the first time.