Error compiling driver for kernel version 5.0.0.25

[cairoapcampos]

I can't install the driver. The log shows the following error:

cc1: some warnings being treated as errors
scripts/Makefile.build:284: recipe for target '/var/lib/dkms/rtl8821CU/5.2.5.3/build/os_dep/linux/ioctl_cfg80211.o' failed
make[2]: *** [/var/lib/dkms/rtl8821CU/5.2.5.3/build/os_dep/linux/ioctl_cfg80211.o] Error 1
Makefile:1606: recipe for target 'module/var/lib/dkms/rtl8821CU/5.2.5.3/build' failed
make[1]: *** [module/var/lib/dkms/rtl8821CU/5.2.5.3/build] Error 2
make[1]: Leaving directory '/usr/src/linux-headers-5.0.0-25-generic'
Makefile:1923: recipe for target 'modules' failed
make: *** [modules] Error 2

what should I do?

[zypangpang]

check this thread. #23
It may help.

[cairoapcampos]

Thank you.