yum throwing "Failed to add groups file for repository: <channel name> - None" error while listing package groups on client system.

Issue

• Yum command is throwing following error while listing package groups on client system:

  # yum grouplist
  Loaded plugins: rhnplugin, security
  Setting up Group Process
  rhel-x86_64-server-cluster-storage-5/group                                               | 107 kB     00:00
  rhel-x86_64-server-cluster-storage-5/group                                               | 107 kB     00:00
  Failed to add groups file for repository: rhel-x86_64-server-cluster-storage-5 - None
  Installed Groups:
     Clustering
     Legacy Network Server
     Mail Server
     Network Servers
     System Tools
     Text-based Internet
  Available Groups:
     Administration Tools
     Authoring and Publishing
     DNS Name Server