I installed synaptic through terminal, but I didn't find it when I search for it, so I uninstalled it. I tried to install it through package manager, I thought it would install more properly. Then I run it while searching and clicking by app launcher. I get prompt for sudo password then nothing happen... I tried to open synaptic through terminal, it worked but I got this error message:
Gtk-Message: 18:14:50.057: GtkDialog mapped without a transient parent. This is discouraged.
And a pop-up saying:
Starting "Synaptic Package Manager" without administrative privileges You will not be able to apply any changes, but you can still export the marked changes or create a download script for them.
I am using Ubuntu 18.04.1 and I'm new to Linux. Can anyone explain to me what happened and help me fix it, thanks.