I tried to follow another question that had the same problem but the command:
sudo apt-get install linux-headers-$(uname -r) build-essential virtualbox-5.1 dkms
returns E: Package 'virtualbox-5.1' has no installation candidate
Can anyone help me with this?
I had this all working then I rebooted and my virtualbox installation had vanished .... which I'm sure is a whole another can of worms. I just want Virtualbox installed. Please help.
Just FYI I try and install this through Ubuntu Software (after downloading 5.1) and the Install button goes gray for about two seconds then in my launcher an icon comes up and says "waiting to install"
A solution to either of these problems would suffice .. help.