upto "Modify the kernel configuration" everything was fine .
Following command
./halium/halium-boot/check-kernel-config kernel/xiaomi/whyred/arch/arm64/configs/whyred-perf_defconfig

gives "Config file checked, found no errors."

but in next step "Build"
when i run the following command "mka mkbootimg"

i am getting this error

============================================
PLATFORM_VERSION_CODENAME=REL
PLATFORM_VERSION=9
TARGET_PRODUCT=lineage_whyred
TARGET_BUILD_VARIANT=userdebug
TARGET_BUILD_TYPE=release
TARGET_ARCH=arm64
TARGET_ARCH_VARIANT=armv8-a
TARGET_CPU_VARIANT=kryo
TARGET_2ND_ARCH=arm
TARGET_2ND_ARCH_VARIANT=armv8-a
TARGET_2ND_CPU_VARIANT=cortex-a73
HOST_ARCH=x86_64
HOST_2ND_ARCH=x86
HOST_OS=linux
HOST_OS_EXTRA=Linux-4.15.0-153-generic-x86_64-elementary-OS-5.1.7-Hera
HOST_CROSS_OS=windows
HOST_CROSS_ARCH=x86
HOST_CROSS_2ND_ARCH=x86_64
HOST_BUILD_TYPE=release
BUILD_ID=PQ3A.190801.002
OUT_DIR=/home/luth3r/rom-dev/halium/out
PRODUCT_SOONG_NAMESPACES= hardware/qcom/audio-caf/msm8998 hardware/qcom/display-caf/msm8998 hardware/qcom/media-caf/msm8998
============================================
ninja: no work to do.
[1/1] /home/luth3r/rom-dev/halium/out/soo...th3r/rom-dev/halium/out/soong/build.ninja
FAILED: /home/luth3r/rom-dev/halium/out/soong/build.ninja 
/home/luth3r/rom-dev/halium/out/soong/.bootstrap/bin/soong_build -t -l /home/luth3r/rom-dev/halium/out/.module_paths/Android.bp.list -b /home/luth3r/rom-dev/halium/out/soong -n /home/luth3r/rom-dev/halium/out -d /home/luth3r/rom-dev/halium/out/soong/build.ninja.d -o /home/luth3r/rom-dev/halium/out/soong/build.ninja Android.bp
error: vendor/vendor_xiaomi_whyred-eleven/Android.bp:23:17: unrecognized property "check_elf_files"
error: vendor/vendor_xiaomi_whyred-eleven/Android.bp:28:1: unrecognized module type "android_app_import"
ninja: build stopped: subcommand failed.
21:10:15 soong bootstrap failed with: exit status 1

#### failed to build some targets (17 seconds) ####

Please help , i don't even know what to check here