Powercli : create multiple snapshots and waiting for each single process

Hi All

I need to create snapshot for multiple VM from txt , and wait for each snapshot to be created, before creating another one for the next server in the foreachloop.

trying with the following syntax the snapshots are created, but all together, with the following error:

$vmlist = get-content "c:\temp\vm.txt"
foreach ($vmName in $vmList) {
   $snapshotDisable = Get-VM $vmName | New-Snapshot -Name "Newsnapshot"
   do {
        sleep 1
        }
        until (Get-Snapshot $snapshotDisable)
    } 

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ERROR

Get-Snapshot : Cannot bind parameter 'VM'. Cannot convert the "Newsnapshot" value of type "VMware.VimAutomation.ViCore.Impl.V1.VM.SnapshotImpl" to type "VMware.VimAutomation.ViCore.Types.V1.Inventory.VirtualMachine".
At line:7 char:29
+         until (Get-Snapshot $snapshotDisable)
+                             ~~~~~~~~~~~~~~~~
    + CategoryInfo          : InvalidArgument: (:) [Get-Snapshot], ParameterBindingException
    + FullyQualifiedErrorId : CannotConvertArgumentNoMessage,VMware.VimAutomation.ViCore.Cmdlets.Commands.GetSnapshot

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Any IDEA?

thanks in advance