converting cluster from using baseline to vLCM image fails

converting an existing cluster from using baselines to vLCM image fails with the following error message(s):

all ESXi hosts in cluster are on version 8.0U3 and there were no issues converting other clusters in the same vCenter. all hosts were healthy and had no communication issues. i did not find any articles describing this particlar issue, but i remembered having to remove some obsolete VIBs before.

ssh to any of the hosts in the cluster and check the installed VIBs:

_{esxcli software vib list | sort}

_{esxcli software vib get -n fc-enablement}

after identifying the obsolete VIB, i removed it from each of the hosts in the cluster:

_{esxcli software vib remove -n fc-enablement}

when all hosts had been rebooted i was able to successfully convert the cluster to using vLCM single image.