Problem

-- Can a map created and folded with Datamapper version 3.0.2 be unfolded in the newer Datamapper version?

Resolution

**  No, this is not possible. That Datamapper version has been retired for a number of years now and the user license has been retired. I have consulted with the R&D Team on this and unfortunately there is no way to open up that map without using the appropriate Datamapper version.

** You need to recreate the map in a newer version of Datamapper in order to use it further