I was able to create a wifi hotspot on my debian 8 install using network tab under gnome settings. I was trying to do the same using nmcli but it always shows
$nmcli con up id Hotspot
Error: Connection activation failed.
I'm trying to connect to the connection created by gnome itself.
$nmcli connection show
Hotspot 6db9bb0a-c61b-47fc-8ada-7ecd46873fc0 802-11-wireless --
I followed the steps from here.