error

get=recovery buildvariant=userdebug droidian.lvm.prefer halium.recovery\"" \
        --header_version 2 \
        ${MKBOOTIMG_SPL_ARGS} \
        -o out/KERNEL_OBJ/recovery.img
if [ -n "arch/arm64/boot/dts/mediatek/oppo6769_216AF.dtb" ]; then \
        KERNEL_IMAGE_DTB_OVERLAY=/buildd/sources/out/KERNEL_OBJ/arch/arm64/boot/dts/mediatek/oppo6769_216AF.dtb; \
else \
        KERNEL_IMAGE_DTB_OVERLAY=$(find /buildd/sources/out/KERNEL_OBJ/arch/arm64/boot -type f -iname \*.dtbo | head -n 1); \
fi; \
[ -n "${KERNEL_IMAGE_DTB_OVERLAY}" ] && \
        mkdtboimg create out/KERNEL_OBJ/dtbo.img ${KERNEL_IMAGE_DTB_OVERLAY}
usage: mkdtboimg [--id ID] [--rev REV] [--flags FLAGS] [--custom0 CUSTOM0]
                 [--custom1 CUSTOM1] [--custom2 CUSTOM2] [--custom3 CUSTOM3]
                 [dt_file]
mkdtboimg: error: argument dt_file: can't open '/buildd/sources/out/KERNEL_OBJ/arch/arm64/boot/dts/mediatek/oppo6769_216AF.dtb': [Errno 2] No such file or directory: '/buildd/sources/out/KERNEL_OBJ/arch/arm64/boot/dts/mediatek/oppo6769_216AF.dtb'
make[1]: *** [/usr/share/linux-packaging-snippets/kernel-snippet.mk:159: out/KERNEL_OBJ/dtbo.img] Error 2
make[1]: Leaving directory '/buildd/sources'
make: *** [debian/rules:6: build-arch] Error 2
dpkg-buildpackage: error: debian/rules build-arch subprocess returned exit status 2
debuild: fatal error at line 1182:
dpkg-buildpackage -d -us -uc -ui -sa --jobs=8 --build=any --build=any -aarm64 failed