Comment 73 for bug 1506744

Yesterday, I did a fresh install of Ubuntu 16.04. I then installed the Cinnamon desktop package.

After installing from software center or using DEB, packages don't show up when searching for them. This thread is close to TWO years old and still there is no solution.

The solutions provided above don't work, because those processes aren't active according to the System Monitor.

Shame on an otherwise perfect OS!
Thank you for solving this issue.