Can anyone shed any light on the meaning of this error during the upgrade and how to resolve it?

Thanks!

Notice: Undefined index: topic_assignments in /var/geeklog/sql/updates/mysql_1.8.2_to_2.0.0.php on line 5

topic_assignments is a new table in Geeklog 2.0. Make sure you've uploaded all the Geeklog 2.0 files. Specifically, system/lib-database.php

bye, Dirk

Thank you!