[CentOS] Error while installing packages

>Anyone know why this is happening and how to deal with this?

Well it seems I can reproduce this in many situations if I install
using a kickstart file that has a %post command that installs open-vm-tools
from packages.vmware.com repo.

Is it not considered safe practice to execute 'yum install ' in the %post
or is it likely package issues with that repo?

Thanks,
jlc