After upgrading from Splunk 6.1.1 to 6.19, why am I getting "appear to be running outdated version of search app..." on our search head?

[a212830]

Hi,

I just upgraded from 6.1.1 to 6.1.9, and now, in the search head, a message is appearing, telling me that the search app appears to be outdated. "Running an outdated version of search app...". We are running search head pooling. Do I need to move the local etc/apps/ and move them to our NAS?

[dflodstrom]

If you have your apps pooled you must copy the pooled apps to a local apps folder and then upgrade Splunk. It sounds like you upgraded Splunk without that step.