Desktop folders won't open with clean install of 18.04
Solution 1:
This was a recent change to Nautilus. You can open the file manager and access Desktop files from there.
I recommend installing Nemo.
Nemo will handle the desktop in lieu of Nautilus.
Enter: sudo apt-get install nemo (.....from the gnome terminal)
or go to the software center and search it.
You can get the deb package from pkgs.org
P.S. DO NOT remove Nautilus ...........