New-CMDeviceVariable not working with -device parameter (PSTypeName mismatch)

Question

Hi everyone,
I have a problem with the New-CMDeviceVariable powershell command in SCCM 2012 R2. My script does something like this:
$ClientID = 'GUID:xxxx-xxxxxxx-xxx-xx'
$variable = @('Test','ValueTest')
# Get device properties
$Device = Get-CMDevice -name $ComputerName | ?{$_.SMSID -eq $ClientID}
# Add Device variable
New-CMDeviceVariable -IsMask $false -Device $Device -VariableName $variable[0] -VariableValue $variable[1] -ea 1
This results in the following error:
New-CMDeviceVariable : Cannot bind argument to parameter 'Device', because PSTypeNames of the argument do not match the PSTypeName required by the parameter: IResultObject#SMS_R_System.
So the command expects input of type IResultObject#SMS_R_System while the Get-CMDevice command outputs
IResultObject#SMS_CombinedDeviceResources. The technet article of the New-CMDeviceVariable clearly states that the correct way to get the device object is through the Get-CMDevice command (see
article).
The only way to get this command to work is to use the -DeviceName parameter. Sadly, we have had issues in our test environment where we'd have multiple CMdevices with the same name, hence the SMSID solution. The only other option would be to use the -DeviceID
parameter. However, I've not been able to get this working using $device.resourceID as a value (which I assume is the ID the command needs). This fails without an error.
Can anyone explain what the proper way is to get around this issue? I've been racking my brain but I can't seem to find a solution for this.
Sincerely,
MicaH

Answer 1

I'm not sure what the difference is, but with me it runs without problems by using Get-CMDevice. Minor detail, the result is the same as with your other option(s), it doesn't create the variable...
At this moment a workaround could be to use WMI and do something like this:
http://www.sepago.de/e/david/2012/05/08/create-machine-variables-in-configuration-manager-2012
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