Running an image compliance check against a host or cluster in Lifecycle Manager results in an error stating, "an unexpected error has occurred".

Products

• VMware vSphere ESXi

Issue/Introduction

When attempting to run an image compliance check against a host or cluster, the task completes with the following error message:

 

An unexpected error has occurred.

 

Environment

vCenter Server 7.x

vCenter Server 8.x

Cause

The cluster image is configured with an ESXi version/build that is later (newer) version/build currently running on the vCenter Server.

For example, the cluster image is configured with a version/build of 8.0 U3 (24022510), and the vCenter Server and ESXi hosts are currently running:

vCenter - 8.0 U1 (21560480)

ESXi hosts - 8.0 U1 (21495797)

 

The vCenter Server should always be running on the same version/build or newer than the ESXi hosts.  The "unexpected error" is due to a compliance check against an ESXi version/build that is a newer version/build from what is currently running on the vCenter Server.

Resolution

Update the vCenter Server to a version/build that is the same or newer than the version/build configured in the cluster image for remediating the ESXi hosts.

Additional Information

Please see the following KB article for version/build recommendations for vCenter Server and ESXi hosts:

vCenter Server version & ESXi Host version recommendations and considerations