Ive been google'ing around to get this to work, now im so frustrated and desperate that i cant get it to work. Ive done this so far:

apt-get install network-manager-openvpn-gnome
apt-get install network-manager-pptp
apt-get install network-manager-pptp-gnome
apt-get install network-manager-vpnc
apt-get install network-manager-vpnc-gnome

I wanted to install:
apt-get install network-manager-strongswan

When i do this, i get this:
Package network-manager-strongswan is not available, but is referred to by another package.
This may mean that the package is missing, has been obsolered, or is only available from another source

E: Package 'network-manager-strongswan' has no installation candidate

I dont know if strongswan is significant, so i tried to set up a VPN-connection..
When doing so, when i click the VPN connection that i want to connect to, nothing happends at all..

Ive tried to get my sources.list to point at a package that i know contained strongswan.
Ive reinstalled Kali like 10 times to i was absolute certain that i havnt done any mistakes.
Ive tried to install strongswan manually, but got stuck at installing some other packages - dbus-glib1 - again i see that its at the destination my sources.list is pointing at, but it wont install it..

So - now in all of my frustrations, im writing here to try get sum hlp to get this to work.. Plz anyone?