Great, so can you try install the kernel headers with the command : sudo apt install raspberrypi-kernel-headers
This is something I found in the RPi forum so I'm not sure about that, I'll also try when I get home and have access to my Pi.

Yes, done all that and makes no difference....they are all installed and up to date...
This is the error again...

DKMS make.log for rtl88x2bu-5.2.4.4 for kernel 4.19.97-v7l+ (armv7l)
Sun  8 Mar 23:43:29 GMT 2020
make ARCH=armv7l CROSS_COMPILE= -C /lib/modules/4.19.97-v7l+/build M=/var/lib/dkms/rtl88x2bu/5.2.4.4/build  modules
make[1]: Entering directory '/root/linux-f16e91dad2af9d57aef477cc1f522040353849f5'
Makefile:614: arch/armv7l/Makefile: No such file or directory
make[1]: *** No rule to make target 'arch/armv7l/Makefile'.  Stop.
make[1]: Leaving directory '/root/linux-f16e91dad2af9d57aef477cc1f522040353849f5'
make: *** [Makefile:1795: modules] Error 2

Now I did a lot of testing but can't find a way to compile on a Pi, compiling and installing the module works fine in x86 and amd64 but no go on a Rpi..
Have to get some help from google.. but for today I give up

Which one were you trying to compile, as I have tried loads from git hub...?

I tried the one Ihoujin wrote in indilib.org/forum/general/6562-driver-fo...r.html?start=0#50498
I didn't search for any other drivers to try but if you have any suggestions let me know.

Well I have tried that and many more, but the error is the same each time...
I have as Jasem fo his opinion on the error, but does not reply as of yet...

Can you try running the script contained in this zip archive. I took it from the AstroPi3 setup scripts created by rlancaste.

Yes that’s what I have been trying...
Still no good....
This is the error after running that script..

What happens when you call ForceOverwrite by adding -f to the end of your ./install.sh command?

It may take out your entire installation, but then again, living dangerously makes life more interesting...

In the picture it looks like the module 8822bu.ko was build ?? if you find the file you can try : sudo insmod path/to/module/8822bu.ko
or if the file is in the current directory then use : sudo insmod ./8820bu.ko just to see what happens.

Ok, so all sorted now, and for anyone else having issues with Realtek drivers for the RTL8812BU the RTL8812AU and the RTL8812CU, then please follow the instructions here, they work perfectly...

deb.trendtechcn.com/

Excellent. Thank you for sharing your solution.