TP-Link ARCHER T2U PLUS AC600 unrecognized/build error

[thelabratrules]

I tried to install this:

https://github.com/aircrack-ng/rtl8812au

Tried to change the parameters (chose RPI - had no better idea) as in the guide...

Then I got this error:
"About to run dkms install steps...

Creating symlink /var/lib/dkms/rtl8812au/5.6.4.2/source ->
/usr/src/rtl8812au-5.6.4.2

DKMS: add completed.

Kernel preparation unnecessary for this kernel. Skipping...

Building module:
cleaning build area...
ARCH=arm 'make' -j6 KVER=4.4.190-1233-rockchip-ayufan-gd3f1be0ed310 KSRC=/lib/modules/4.4.190-1233-rockchip-ayufan-gd3f1be0ed310/build.....(bad exit status: 2)
ERROR (dkms apport): binary package for rtl8812au: 5.6.4.2 not found
Error! Bad return status for module build on kernel: 4.4.190-1233-rockchip-ayufan-gd3f1be0ed310 (aarch64)
Consult /var/lib/dkms/rtl8812au/5.6.4.2/build/make.log for more information.

Kernel preparation unnecessary for this kernel. Skipping...

Building module:
cleaning build area...
ARCH=arm 'make' -j6 KVER=4.4.190-1233-rockchip-ayufan-gd3f1be0ed310 KSRC=/lib/modules/4.4.190-1233-rockchip-ayufan-gd3f1be0ed310/build....(bad exit status: 2)
ERROR (dkms apport): binary package for rtl8812au: 5.6.4.2 not found
Error! Bad return status for module build on kernel: 4.4.190-1233-rockchip-ayufan-gd3f1be0ed310 (aarch64)
Consult /var/lib/dkms/rtl8812au/5.6.4.2/build/make.log for more information.
Finished running dkms install steps."

What have I done wrong?