19DV500_v1代码编译问题

原码版本:19DV500_v1 Hi3519DV500_SDK_V1.0.0.3
按说明使用脚本编译：./build_hi3519dv500_sdk2003.sh all
出现以下错误：
…
CC util-linux/taskset.o
CC util-linux/uevent.o
CC util-linux/umount.o
CC util-linux/unshare.o
CC util-linux/wall.o
AR util-linux/lib.a
LINK busybox_unstripped
Trying libraries: crypt m resolv rt
Library crypt is not needed, excluding it
Library m is not needed, excluding it
Library resolv is not needed, excluding it
Library rt is not needed, excluding it
Final link with:
chmod: cannot access ‘build_rootfs.sh’: No such file or directory
============> FILE_SYSTEM_PACKAGE: hi3516dv500_38x38_rootfs_glibc_arm64 no exist !!!
查找了下载到的代码包是没有build_rootfs.sh这个文件
请教一下如何解决？