Can't export users from OJS 2.4.8.0 to OJS 3.0

Hi
When I try to import the xml file I receive the following message:

Validation errors:

Element ‘users’: No matching global declaration available for the validation root.

How do I fix that?
Regards
Niels Erik

The schema has changed between 2.4.x and 3.x. See:

vs.

A quick workaround would be to upgrade a copy of the OJS instance with the users you want to 3.x, and then export them from that instance.

A more full workaround would be to create a XSLT transform to take the 2.4.8 export and output a 3.x compatible one.