import of exported file refused

For some problem reasons I had to reinstall scriptcase V9.2. In the old V9.2 I did an export of the project.
After the fresh installation I can login as admin. Then I import in the new installation the expored file.
Scriptcase responds with “This file has not been generated by scriptcase 9”.

Has anybody had a similar experience and a possible solution?
Thanks for help!
Sawjer

I had the same problem some time ago. I could not restore my copy.