I am new to this platform, I am facing the same issue too. The folder kernel-3.18 exists in aosp but still I am getting the following error,
make: *** No rule to make target ‘out/target/product/amt6797_64_open/kernel’, needed by ‘out/target/product/amt6797_64_open/boot.img’. Stop.
make: *** Waiting for unfinished jobs…
Notice file: external/zlib/NOTICE – out/host/linux-x86/obj/NOTICE_FILES/src//bin/minigzip.txt
Do I need to clone kernel from a different repo?
Thanks a lot!