Which version of the CiscoView pkg for the cat 6K do you have installed?
You might want to try these steps (may be due to bug CSCeb12426)
Perform these tasks to upgrade and download the latest Cisco device packages:
1. Remove all the cat6000/catQDM/cat6000IOS existing device packages from CiscoView
CWW6.1 -> Tasks -> Package Support Updater -> Staging Area Contents
CWW6.1 -> Tasks -> Package Support Updater -> Delete Device Package
Please verify in that location and if there is a file exists for cat6000/catQDM/cat6000IOS then try
to delete it:
:\Program Files\CWW6\www\classpath\com\cisco\nm\cvw\devpkgs
2. Install the latest device packages for catQDM(1.7) first and then update the cat6000/cat6000IOS
packages.
CWW6.1 -> Tasks -> Package Support Updater -> Add Packages.
3. View Installed Packages
CWW6.1 -> Tasks -> Package Support Updater -> View Installed Packages