I just did fresh install of arch. I have installed xorg, vim, and other numerous. Now when I wanted to install Cinnamon as DE for the system. I used following command
it gives an error message that -
target not found: cinnamon
but It do exist, as we can see here -
https://aur.archlinux.org/packages/cinnamon/
Same is case with gnome-menus2. I have tried using pacman -Syyu. It refreshes core extra and community repositories