manjaro make

make[1]: Entering directory '/usr/lib/modules/4.19.12-2-MANJARO/build' make[1]: *** No rule to make target 'modules'. Stop. make[1]: Leaving directory '/usr/lib/modules/4.19.12-2-MANJARO/build' make: *** [Makefile:1923: modules] Error 2

这个原因大多是由于linux内核的header未安装正确

uname -r
pacman -S linux linux419-headers
reboot # need reboot