Your desktop is upgraded to 10.2 but What is the version of tableau server ?
Please raise a ticket with tableau support and see.They may help you out.
Thanks for the reply kumar bharat. There does not seem to be any relation with tableau server at the moment. I am not publishing any content on the server. I am just trying to create an extract on my laptop using tableau desktop v10.2.0. But I have already raised a case with Tableau Support. They are investigating. There seems to be some issue with Tableau Desktop v10.2.0 and v10.2.1.