[SOLVED] Cannot install VirtualBox guest additions

Hi,


I'm using the following constellation:
Host: Win 8 Pro 64 Bit
Guest: Lubuntu 13.04 64 Bit
VirtualBox 4.2.12


If I try to install the guest additions I get the following messages:


leo@leo-VirtualBox:/media/leo/VBOXADDITIONS_4.2.12_84980$ sudo sh ./VBoxLinuxAdditions.run
Verifying archive integrity... All good.
Uncompressing VirtualBox 4.2.12 Guest Additions for Linux............
VirtualBox Guest Additions installerCopying additional installer modules ...
Installing additional modules ...
Removing existing VirtualBox non-DKMS kernel modules ...done.
Building the VirtualBox Guest Additions kernel modules
The make utility was not found. If the following module compilation fails then this could be the reason and you should try installing it.
The gcc utility was not found. If the following module compilation fails then this could be the reason and you should try installing it.
Building the main Guest Additions module ...fail! (Look at /var/log/vboxadd-install.log to find out what went wrong)
Doing non-kernel setup of the Guest Additions ...done.
Installing the Window System driversInstalling X.Org Server 1.13 modules ...done.
Setting up the Window System to use the Guest Additions ...done.
You may need to restart the hal service and the Window System (or just restartthe guest system) to enable the Guest Additions.
Installing graphics libraries and desktop services components ...done.


Content of /var/log/vboxadd-install.log:
/opt/VBoxGuestAdditions-4.2.12/src/vboxguest-4.2.12/build_in_tmp: 62: /opt/VBoxGuestAdditions-4.2.12/src/vboxguest-4.2.12/build_in_tmp: make: not found
Creating user for the Guest Additions.
Creating udev rule for the Guest Additions kernel module.


Does anybody know what I can do? Note that I cannot go online within Lubuntu.