How to fix Synaptic not Launching plus other stuff

Tried to launch Synaptic Package Manager recently and nothing happens after entering your password? Well there appears to be a bug but there is a solution to this message:

Code:

swarfendor437@zorin152:~$ pkexec synaptic
No protocol specified
Unable to init server: Could not connect: Connection refused

(synaptic:6528): Gtk-WARNING **: 20:42:55.602: cannot open display: :0


Whilst still in the terminal use the next bit of code to copy to your terminal:

xhost +si:localuser:root

Now enter pkexec synaptic once more and the problem is solved (it would appear that with the newer kernels, sudo is being permanently retired!

Updated 31.05.2020 - what the command does is add the user to the root group temporarily, so if you want to check your partitions using GParted after reinstalling, you will need to use the same command before using

Code:

pkexec gparted

Well I finally bottomed this issue. I don't ever remember selecting Zorin on Wayland but that is why I could not run sudo synaptic - it came to my attention that other administrator accounts I had setup on this system had no problems with the sudo command in the terminal - low and behold Wayland! Aaaaaarrrrrrggggghhhh!