Data collection for NSX (Network and Security Inventory) fails on vRealize Automation 6.2

I recently introduced NSX 6.2 in my vRealize Automation 6.2 setup and updated the (vSphere) vCenter Server Endpoint with network and security platform information.

When I ran the data collection after updating the Endpoint, the data collection for Network and Security Inventory kept on failing.

 I found below error in "Infrastructure>Monitoring>Log

Workflow 'vSphereVCNSInventory' failed with the following exception: Error executing vCenter Orchestrator workflow: org.springframework.web.client.RestClientException: 403 Forbidden (Workflow:Create NSX endpoint / Scriptable task (item1)#10).

This error message is common when wrong credentials are used for NSX, after correcting the credentials the data collection was still failing but with a new error message

Workflow 'vSphereVCNSInventory' failed with the following exception: vCenter Orchestrator returned an error: browseInventory().

I logged into my Orchestrator client and checked inventory and found error for NSX plugin.

Resolution:

Default plugin was causing error for me, I uninstalled the default NSX plugin and installed the latest plugin.

Steps to uninstall vCO plugin

1. Login to vCO and navigate to "/usr/lib/vco/app-server/plugins"

2. Locate the plugin "o11nplugin-nsx.dar" and manually remove it

rm o11nplugin-nsx.dar

3. Delete the Package from Packages tab called "com.vmware.nsx"

4. Delete the NSX empty folder if any under Library>NSX

5. Restart the vco-server and vco-configurator service

service vco-server restart

service vco-configurator restart

6. Now import the new plugin and restart service

Now the Data collection was successfully and it ran "create NSX endpoint" workflow successfully under "vCO>NSX>Configuration"