Hello guys.
I've installing fresh kali 2.0, and i've already update & upgrade it.
When i install virtualbox 5.0 error was happened. And this is the output:

Code:
sudo apt-get install virtualbox-5.0
Reading package lists... Done
Building dependency tree       
Reading state information... Done
Recommended packages:
  libsdl-ttf2.0-0 linux-headers
The following NEW packages will be installed:
  virtualbox-5.0
0 upgraded, 1 newly installed, 0 to remove and 0 not upgraded.
Need to get 0 B/64.8 MB of archives.
After this operation, 164 MB of additional disk space will be used.
Preconfiguring packages ...
Selecting previously unselected package virtualbox-5.0.
(Reading database ... 328022 files and directories currently installed.)
Preparing to unpack .../virtualbox-5.0_5.0.4-102546~Debian~jessie_amd64.deb ...
Unpacking virtualbox-5.0 (5.0.4-102546~Debian~jessie) ...
Processing triggers for systemd (215-17+deb8u1) ...
Processing triggers for hicolor-icon-theme (0.13-1) ...
Processing triggers for shared-mime-info (1.3-1) ...
Processing triggers for gnome-menus (3.13.3-6) ...
Processing triggers for desktop-file-utils (0.22-1) ...
Processing triggers for mime-support (3.58) ...
Setting up virtualbox-5.0 (5.0.4-102546~Debian~jessie) ...
addgroup: The group `vboxusers' already exists as a system group. Exiting.
Stopping VirtualBox kernel modules ...done.
Uninstalling old VirtualBox DKMS kernel modules ...done.
Trying to register the VirtualBox kernel modules using DKMSError! echo
Your kernel headers for kernel 4.0.0-kali1-amd64 cannot be found at
/lib/modules/4.0.0-kali1-amd64/build or /lib/modules/4.0.0-kali1-amd64/source.
 ...failed!
  (Failed, trying without DKMS)
Recompiling VirtualBox kernel modules ...failed!
  (Look at /var/log/vbox-install.log to find out what went wrong)
i need your advice guys. i'm newbie here....