this is the error that I get following download
pi@raspberrypi:~/rtl8723au $ make
make ARCH=armv6l CROSS_COMPILE= -C /lib/modules/4.1.18+/build M=/home/pi/rtl8723au modules
make[1]: *** /lib/modules/4.1.18+/build: No such file or directory. Stop.
Makefile:516: recipe for target 'modules' failed
make: *** [modules] Error 2
uname -r gives this 4.1.18+
this is the error that I get following download
pi@raspberrypi:~/rtl8723au $ make
make ARCH=armv6l CROSS_COMPILE= -C /lib/modules/4.1.18+/build M=/home/pi/rtl8723au modules
make[1]: *** /lib/modules/4.1.18+/build: No such file or directory. Stop.
Makefile:516: recipe for target 'modules' failed
make: *** [modules] Error 2
uname -r gives this 4.1.18+