Cannot install Bumblebee and Proper Nvidia Drivers

[Aokurami]

Good day, Linux Experts!

Here am I, complaining about entire day wasted.

Pretty much, what is the issue. I am trying to install Bumblebee, but anytime I am trying to follow guide (>>GUIDE<<) steps, I am always stuck on this command:

sudo gpasswd -a $USER bumblebee

It always returns with an error:

gpasswd: group 'bumblebee' does not exist in /etc/group

I've surfed the entire web, and didn't find a solution. Maybe someone here know how to fix this problem? It will be greatly appreciated.

System: Linux Mint 18.1 Cinnamon
GPU: Nvidia 660M

I am trying to install: Nvidia 378 Drivers with Bumblebee. Why? Because when I am just installing Nvidia drivers, I always get Cinnamon error, and it never starts. the only solution I found is Bumblebee.

[JerryF]

You need to create the group named "bumblebee".

Settings, Users and Groups, Groups tab, Add

[Aokurami]

Well, thank you for your reply.

I've tried to launch "Users and Groups" app, but it does nothing, even not launching up. Maybe there's another way to manage or fix it?

[Aokurami]

Ok, I got users and group to work through terminal. But now I got another problem... (Seems like my Linux is just working against me using it)

When I follow the guide to the next step after adding new user, I got another error using command listed below:

Command:

sudo systemctl enable bumblebeed

Error:

Failed to execute operation: No such file or directory

Any suggestions?

[Aokurami]

^UPD: So I got through all the process, it took me a lot of dancing around a fire to get it work...

And here am I, so happy. But now I got probably (I hope) last problem. I got desktop bug: >>CLICK<<

Maybe anyone know how to fix it?