If your Add/Remove applications has no applications in it, here's what to do

It looks like there's an interesting bug in the current version of Adobe Air for Linux which, if you install it, can affect the Ubuntu Add/Remove Applications programme.

So, if you find that after installing Air, you have no applications at all listed in Add/Remove Apps, do this:

In terminal, type sudo update-app-install

If that doesn't work, reinstall the Add/Remove Apps application:

sudo apt-get --reinstall install gnome-app-install

This should do the trick. According to Rohit Kewlani of the Adobe Air team (posting in the above thread), this should be fixed in an upcoming Air release.