LTM Pool discovery failure

I tried to add a pool under the All Devices, State View area and it came back with this error:

 

 

The PowerShell script failed with below exception System.Management.Automation.RuntimeException: Unknown method "{urn:iControl:Management/Partition}:get_active_partition" At line:27 char:20 + Add-F5.LtmPool <<<< -DeviceIP $mgmtAddress -Name $poolName -Token $token; at System.Management.Automation.FlowControlNode.Execute(Array input, Pipe outputPipe, ExecutionContext context) at System.Management.Automation.ParseTreeNode.Execute(Array input, Pipe outputPipe, ArrayList& resultList, ExecutionContext context) at System.Management.Automation.StatementListNode.ExecuteStatement(ParseTreeNode statement, Array input, Pipe outputPipe, ArrayList& resultList, ExecutionContext context)

 

 

Script Name: AddLtmPool

 

One or more workflows were affected by this. Workflow name: F5.Task_AddLtmPool Instance name: StoreLB1.datacomm Instance ID: {428A5CF5-0274-7EC7-153C-D6A1EF9FB1B6} Management group: SCOMMGMT Error Code: -2130771918 (Unknown error (0x80ff0032)).