help give me directions installing nvidia drivers on Freebsd?

[bakburn]

i tried installing using the port nvidia-driver
error code blah blah
Cant find kernel source tree

I have no idea what im doing. first week using bsd help me im useless :(

please help me if you can.

i have 5.4-release

[zander]

You need to install the kernel source package; please see the NVIDIA FreeBSD graphics driver README for details.