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Upgrading vCenter to version 8.x fails on prechecks with the error: "This vCenter Server has extensions registered that are unsupported by the new vCenter Server. Extensions: NSX Manager (by VMware) on https://xxx/sdk/vim Please ensure extensions unsupported by the new vCenter Server are un-registered with existing vCenter Server before upgrade." Example:requirements-upgrade-runner.log contains errors similar to the excerpt below: requirementMismatchSpecs': [{'text': {'id': 'upgrade.vpxd.external.extension.unsupported.msg', 'translatable': 'This vCenter Server has extensions registered that are unsupported by the new vCenter Server. Extensions: %(0)s', 'args': ['NSX Manager (by VMware) on https://xxx/sdk/vimService, '], 'localized': 'This vCenter Server has extensions registered that are unsupported by the new vCenter Server. Extensions: NSX Manager (by VMware) on https://xxx/sdk/vimService, '}, 'description': {'id': 'upgrade.vpxd.external.extension.title', 'translatable': 'vCenter External Extensions', 'localized': 'vCenter External Extensions'}, 'resolution': {'id': 'upgrade.vpxd.external.extension.unsupported.resolution.msg', 'translatable': 'Please ensure extensions unsupported by the new vCenter Server are un-registered with existing vCenter Server before upgrade. Please refer to the vSphere documentation on extensions, and the upgrade and interoperability guides.', 'localized': 'Please ensure extensions unsupported by the new vCenter Server are un-registered with existing vCenter Server before upgrade. Please refer to the vSphere documentation on extensions, and the upgrade and interoperability guides.' The Extension Manager in the vCenter Managed Object Browser (MOB) lists the com.vmware.vShieldManager extension:
This article provides the steps to remove or disable the unsupported NSX-V plugin from the vCenter in order to be able to upgrade to version 8.x
An unsupported NSX-V extension is present in the source vCenter preventing upgrade to version 8.0
Caution: Before applying any changes confirm that the environment does not use NSX-V
Caution: Before applying the steps below, please take a backup or an offline-snapshot (in powered-off state) of the vCenter Server Appliance . If the vCenter is part of a Linked Mode replication setup, please backup/snapshot all replicating nodes as well.To resolve this issue, remove the unsupported com.vmware.vShieldManager extension from the available plug-in list. Note: If you have vCenter Server in linked mode, perform this procedure on the vCenter Server that is used to install the plug-in initially, then restart the vCenter Server services on the linked vCenter Server. Access the MOB extension manager by opening the following URL in a webbrowser (replace <VC_FQDN_OR_IP> with the correct IP address or fully-qualified domain name of the vCenter Server): https://<VC_FQDN_OR_IP>/mob/?moid=ExtensionManager Select UnregisterExtension. A new window appears Paste the key "com.vmware.vShieldManager" of the plug-in and click on Invoke Method. This removes the plug-in and results in void: Close the windowRefresh the Extension Manager window to verify that the plug-in is removed successfully.Restart the vSphere Client service: # service-control --restart vsphere-ui
For more information, see: Safely Remove a NSX-V InstallationSDK Managed Object Browser (568529).Cannot remove or disable unwanted plug-ins from vCenter Server and vCenter Server Appliance (1025360)