While updating Red Hat Enterprise Linux system it fails with error "rhn-client-tools conflicts rhncfg < x.x.xx"

Issue

• While updating system it fails with following error,

  --> Processing Conflict: rhn-client-tools conflicts rhncfg < 5.9.23
  --> Finished Dependency Resolution
  rhn-client-tools-0.4.20-46.el5.noarch from rhel-i386-server-5 has depsolving problems
  

  OR

  --> Processing Conflict: rhnlib-2.5.22-15.el6.noarch conflicts rhncfg < 5.10.27-13
  --> Finished Dependency Resolution
  Error: rhnlib conflicts with rhncfg-5.9.27-17.el6.noarch
  You could try using --skip-broken to work around the problem
  You could try running: rpm -Va --nofiles --nodigest