Hello,

Installing realtek-rtl88xxau-dkms driver for AWUS036ACS adapter running on RTL881AU chipset

Get errors:
Setting up realtek-rtl88xxau-dkms (5.6.4.2~git20200916-0kali1) ...
Loading new realtek-rtl88xxau-5.6.4.2~git20200916 DKMS files...
Building for 5.7.0-kali1-amd64
Module build for kernel 5.7.0-kali1-amd64 was skipped since the
kernel headers for this kernel does not seem to be installed.

Trying to install kerner headers.

Get errors:
apt-get update && apt-get install -y linux-headers-$(uname -r)
Get:7 http://mirror.neostrada.nl/kali kali-rolling/non-free amd64 Packages [200 kB]
Fetched 30.6 MB in 13s (2,362 kB/s)
Reading package lists... Done
Reading package lists... Done
Building dependency tree
Reading state information... Done
E: Unable to locate package linux-headers-5.7.0-kali1-amd64
E: Couldn't find any package by glob 'linux-headers-5.7.0-kali1-amd64'
E: Couldn't find any package by regex 'linux-headers-5.7.0-kali1-amd64'