troubleshooting wireless adapter

I asked a question in [Unix.stackexchange.com](https://unix.stackexchange.com/quest...-most-of-times). I am unable to connect to WiFi. So, I installed `backports-5.10-rc6-1` I had extract it also. Then, I was trying to unload it. When I tried to unload it I got some error.

/--------------| Your kernel headers are incomplete/not installed.
| Please install kernel headers, including a .config
| file or use the KLIB/KLIB_BUILD make variables to
| set the kernel to build against, e.g.
| make KLIB=/lib/modules/3.1.7/
| to compile/install for the installed kernel 3.1.7
| (that isn't currently running.)
\--
make: *** [Makefile:41: unload] Error 1

I tried make defconfig-wifi. I got the same error again.

/--------------
| Your kernel headers are incomplete/not installed.
| Please install kernel headers, including a .config
| file or use the KLIB/KLIB_BUILD make variables to
| set the kernel to build against, e.g.
| make KLIB=/lib/modules/3.1.7/
| to compile/install for the installed kernel 3.1.7
| (that isn't currently running.)
\--
make: *** [Makefile:41: defconfig-wifi] Error 1



I am new to kali forums. So, i am not understanding, I don't know how to ask a good question... So, Sorry! I had installed compat-wireless-2010-06-26-p also.I know that it is deprecated although I was trying cause, backport wasn't working. When I unloaded compat-wireless I got wlan0, wlan1 but, I was unable to connect to any router.