Bad luck, the kernel headers for the target kernel version could
not be found and you
did not specify other valid kernel headers to use.
If the running kernel has been shipped with the Debian
distribution, please install the package
linux-headers-2.6.18-4-amd64. If your kernel source tree (or
headers) is located in some non-usual location, please set the
KERNELDIRS environment variable to the path of this directory, or
(alternatively) specify the source directory we build for with
the --kernel-dir option in module-assistant calls.
ackage nvidia-kernel-source was not built successfully, see
/var/cache/modass/nvidia-kernel-source*buildlog* for details!