Error running Get-AzureEndpoint - "Cannot bind parameter 'VM'. Cannot convert the "ssasnodeaz03" value of type "System.String" to"

Any ideas please? 

cmdlet Get-AzureEndpoint at command pipeline position 1
Supply values for the following parameters:
(Type !? for Help.)
VM: ssasnodeaz03
Get-AzureEndpoint : Cannot bind parameter 'VM'. Cannot convert the "ssasnodeaz03" value of type "System.String" to
type "Microsoft.WindowsAzure.Commands.ServiceManagement.Model.IPersistentVM".
At line:1 char:1
+ Get-AzureEndpoint
+ ~~~~~~~~~~~~~~~~~
    + CategoryInfo          : InvalidArgument: (:) [Get-AzureEndpoint], ParameterBindingException
    + FullyQualifiedErrorId : CannotConvertArgumentNoMessage,Microsoft.WindowsAzure.Commands.ServiceManagement.IaaS.En
   dpoints.GetAzureEndpoint