[WBEL-devel] Problem during running createchroot-3.0

Hi,
I tried to build the own WL respin1 following the readme in whitebox-buildutils.tar.gz. But when I tried to run createchroot-3.0 scripts, I got some warning: and one error like below:
warning: /whitebox/distrib/3.0/en/os/i386/RedHat/RPMS/4Suite-0.11.1-14.i386.rpm:V3 DSA signature: NOKEY, key ID 73307de6.

error: Failed dependencies:
    liblaus.so.1 is needed by pam-0.75-54. 
This error still happened even after I set the LD_LIBRARY_PATH=/lib (I can find the /lib/liblaus.so.1 in this machine_.

Any suggestion is appreciated.

Cheers,
Richard Du