Error message: «Xtags error: No such previous box: tag &pbu2»

This error can occur under the following conditions:

1. You have published data from CatBase which includes a text box containing a text or picture box
2. You've tried to import that file into QuarkXPress or Adobe InDesign

Explanation

You can't create boxes within anchored boxes.

Solution:

Your containing text box must be an unanchored box.