Mock build problem

[cranium2003]

Paul,
         Got some problems. As per your suggestions i
successfully created development tree(As i already
downloaded development repo so instead to give time
and badwidth for FC5 repo i decides to use development
repo).
          Attached is my
fedora-development-i386-core.cfg. when i gave
su - build
mock -r fedora-development-i386-core.cfg foo.src.rpm
i got following results
init
clean
prep
This may take a while
Error peforming yum command: /usr/sbin/mock-helper yum
--installroot
/var/lib/mock/fedora-development-i386-core/root
groupinstall build
ending
done

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