build usbtv in NanopPi2

I got the driver in here "";

when I type "dkms build -m usbtv -v 1.0"

It just return me error like the following

Error! Your kernel headers for kernel 3.4.39-s5p4418 cannot be found.
Please install the linux-headers-3.4.39-s5p4418 package,
or use the --kernelsourcedir option to tell DKMS where it's located