After upgrading to 13.10, no applications are visible in the application lens

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.

Solution 1:

I think this is likely because the unity-scope-home package is not installed.

Try using Software Center to find and install that package, log out and back in to restart Unity, and see if that resolves the problem.