I upgraded from 13.04 to 13.10 and now all icons in the application lens are gone.

This is what I tried so far:

• apt-get install --reinstall unity-lens-applications


• unity --replace and unity --reset-icons


• moving ~/.config to ~/.config2


• deleting ~/.cache/software-center and ~/.cache/unity

Most of these things have been suggested in this question: Unity Applications lens is empty - but all to no avail.