Build fail sudo ./build.sh lunch Makefile:72: *** no fip version.

[talkos]

after run command sudo ./build.sh lunch and choose board, I've got error:
make[1]: Leaving directory '/home/juraj/duo-buildroot-sdk-v2-clean/osdrv/extdrv/wiegand-gpio'
/home/juraj/duo-buildroot-sdk-v2-clean
Run build_uboot() function
Run _link_uboot_logo() function
Makefile:72: *** no fip version. Stop.
Error: Build board milkv-duos-musl-riscv64-sd failed!