In my lab I tried to deploy Aria Operations for Networks 6.12.1 (AON/vRNI) from Aria Suite LifeCycle 8.16 (ASLC/vRLCM). Before the deployment of AON I successfully deployed other products:

vIDM 3.3.7
Aria Operations for Logs 8.16 (vRLI)
Aria Operations 8.17.1 (vRops)

Attempted to deploy Aria Ops for Networks 6.12.1 but it failed with LCMVSPHERECONFIG1000016 error. 

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java.io.IOException: com.vmware.vim.binding.vmodl.fault.SystemError
	at com.vmware.vrealize.lcm.drivers.vsphere65.vlsi.utils.ExceptionMappingUtils.mapAndThrowImportVAppExceptions(ExceptionMappingUtils.java:78)
	at com.vmware.vrealize.lcm.drivers.vsphere65.deploy.impl.BaseOvfDeploy.importOvf(BaseOvfDeploy.java:713)
	at com.vmware.vrealize.lcm.plugin.core.vsphere.tasks.DeployOvfTask.execute(DeployOvfTask.java:251)
	at com.vmware.vrealize.lcm.automata.core.TaskThread.run(TaskThread.java:62)
	at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
	at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
	at java.base/java.lang.Thread.run(Unknown Source)
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Error Code: LCMVSPHERECONFIG1000016
IO Exception occurred while performing the operation. Check the logs for more information.
Unexpected ioexception occurred.

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After some scavenging around, I ran into the known issues in the Release Notes from version 8.14

So let’s check which user is being used between the ASLC and vCenter:

Now login the vCenter and check if the privileges assigned to this account match the 2 from the release notes:

As you can see above the privileges are not configured on this role, let’s configure the 2 privileges:

Now we need to resync the account between vCenter and ASLC.

After this I Hit the retry button on the request in ASLC and the ovf is being deployed in vCenter.