I regularly upgrade system. Last night i upgraded some packages (ubuntu-base). Now there is not application in unity dash (in application lens). Other lens (file, music etc) are just working fine. Only problem is that i can't see any application in application lens.
To fix this issue, you can probably just run
sudo dpkg-reconfigure -A
. Your problem is likely that your Dash configuration wasn't updated properly, so it cannot see any apps. Running the command will reconfigure Ubuntu, so any problems with your configuration files will be flushed out there.Seemes like you have to remove
~/.cache/software-center/*
, log out and log in again. It seems to have helped me.