Check that the plug-in ZIP file successfully downloaded to vCenter:- Open vsphere_client_virgo.log in the vCenter. vCenter log files for versions 6.5 and 6.7 are in the following locations:
- Flash installations: /var/log/vmware/vsphere-client/logs/vsphere_client_virgo.log
- HTML5 installations: /var/log/vmware/vsphere-ui/logs/vsphere_client_virgo.log
- If a failure message indicates that the ZIP download failed, download the ZIP again.
Note: You might need to correct an unreachable or bad URL. Update the plug-in registration or unregister and register the plug-in again with a corrected URL. Failure to download the ZIP can also occur if you specified an HTTP URL without changing the allowHTTP setting.