We are trying to run the sechecker tool on one of our boxes based on RHEL6 and get the following error..

[root@vos-cm142 ~]# sechecker -m types_wo_allow -v

Using policy: /etc/selinux/targeted/policy/policy.24

Using file contexts: /etc/selinux/targeted/contexts/files/file_contexts

ERROR: Cannot get avrules: Neverallow rules requested but not available