vmbuilder fails: Failure trying to run: chroot /tmp/* /sbin/ldconfig

vmbuilder fails: Failure trying to run: chroot /tmp/* /sbin/ldconfig

I am running the ubuntu12.04 64bits desktop, command below in Bash:
sudo vmbuilder kvm ubuntu --suite=raring --flavour=server  --arch=amd64
--iso=/home/drill/Downloads/ubuntu-13.04-server-amd64.iso
-o --libvirt=qemu:///system --ip=172.11.1.203 --gw=172.11.1.1
--part=vmbuilder.partition --templates=libvirtxml.tmpl --user=administrator
--name=Administrator --pass=howtoforge  --firstboot=/home/drill/test/boot.sh
--mem=1024 --hostname=vm5 --bridge=br0 -d vm5-kvm
the error:
I: Extracting udev...
I: Extracting upstart...
I: Extracting libustr-1.0-1...
I: Extracting libblkid1...
I: Extracting libmount1...
I: Extracting libuuid1...
I: Extracting mount...
I: Extracting util-linux...
I: Extracting liblzma5...
I: Extracting zlib1g...
W: Failure trying to run: chroot /tmp/tmpvN0dtj /sbin/ldconfig
, stderr: