live-build doesn't make iso
 

I'm trying to make a Debian live image with live build
here's the switches which i'm using with lb config
--mode debian \
--system live \
--interactive shell \
--debian-installer live \
--architecture amd64 \
--updates true \
--binary-images iso-hybrid
......
here's the problem
P: Begin building root filesystem image...
P: Preparing squashfs image...
Cannot stat source directory "chroot" because No such file or directory
.......
but the chroot directory exists and i can use it
what is the problem?

Have you created a chroot directory to use for building this image, per the documentation?

yes,
i can also use the chroot environment.