Method "NewTriggerByOnce" not found

PowerShell Help
1

Here is what I’m trying to do (Add trigger to scheduled task on remote machine):

Invoke-Command -ComputerName BETA -ScriptBlock {Set-ScheduledTask -TaskPath '\Monitor\' -TaskNam
e 'Off' -Trigger (New-ScheduledTaskTrigger -At 16:40 -Once)}

which results into:

Method "NewTriggerByOnce" not found
    + CategoryInfo          : ObjectNotFound: (PS_ScheduledTask:Root/Microsoft/...S_ScheduledTask) [New-ScheduledTaskT
   rigger], CimException
    + FullyQualifiedErrorId : HRESULT 0x80041002,New-ScheduledTaskTrigger
    + PSComputerName        : BETA

Cannot validate argument on parameter 'Trigger'. The argument is null or empty. Provide an argument that is not null or
 empty, and then try the command again.
    + CategoryInfo          : InvalidData: (:) [Set-ScheduledTask], ParameterBindingValidationException
    + FullyQualifiedErrorId : ParameterArgumentValidationError,Set-ScheduledTask
    + PSComputerName        : BETA

wondering may be someone have same issue?

2

What version of Windows and PowerShell are you using on the local and remote machines?

I’ve reproduced your error on a windows 10 machine
PS> New-ScheduledTaskTrigger -At 16:40 -Once
New-ScheduledTaskTrigger : Method “NewTriggerByOnce” not found
At line:1 char:1

  • New-ScheduledTaskTrigger -At 16:40 -Once
  •   + CategoryInfo          : ObjectNotFound: (PS_ScheduledTask:Root/Microsoft/...S_ScheduledTask) [New-ScheduledTaskT
 rigger], CimException
  + FullyQualifiedErrorId : HRESULT 0x80041002,New-ScheduledTaskTrigger

Using the production preview of WMF 5.0 on Windows Server 2012 R2 command works and I can create the trigger.

I’ve also found a difference between the commands on the 2 versions of PowerShell.

I’ll investigate this further. Something isn’t right somewhere

3

Oh, it seems that you are right, I just have tried that script from home laptop to work pc all works (both have Windows 10) but machine that I was tried before have Windows 10 Insider Preview, so probably there is some kind of regression, hope that it will not happen later on in normal Windows 10

4

Running regular Windows 10 with the following PS Version and still getting the same type of error when trying to create a daily trigger. Any updates?

Name Value

PSVersion 5.0.10586.0
PSCompatibleVersions {1.0, 2.0, 3.
BuildVersion 10.0.10586.0
CLRVersion 4.0.30319.420
WSManStackVersion 3.0
PSRemotingProtocolVersion 2.3
SerializationVersion 1.1.0.1

5

Report it here then: http://windowsserver.uservoice.com/forums/301869-powershell :slight_smile:

6

found a fix and posted it user voice.
From an elevated prompt (PowerShell or CMD)
mofcomp C:\Windows\System32\wbem\SchedProv.mof

PS C:\WINDOWS\system32> New-ScheduledTaskTrigger -AtStartup
New-ScheduledTaskTrigger : Method "NewTriggerByStartup" not found
At line:1 char:1
+ New-ScheduledTaskTrigger -AtStartup
+ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    + CategoryInfo          : ObjectNotFound: (PS_ScheduledTask:Root/Microsoft/...S_ScheduledTask) [New-ScheduledTaskT
   rigger], CimException
    + FullyQualifiedErrorId : HRESULT 0x80041002,New-ScheduledTaskTrigger

PS C:\WINDOWS\system32> mofcomp C:\Windows\System32\wbem\SchedProv.mof
Microsoft (R) MOF Compiler Version 10.0.10586.0
Copyright (c) Microsoft Corp. 1997-2006. All rights reserved.
Parsing MOF file: C:\Windows\System32\wbem\SchedProv.mof
MOF file has been successfully parsed
Storing data in the repository...
Done!
PS C:\WINDOWS\system32> New-ScheduledTaskTrigger -AtStartup


Enabled            : True
EndBoundary        :
ExecutionTimeLimit :
Id                 :
Repetition         :
StartBoundary      :
Delay              :
PSComputerName     :



PS C:\WINDOWS\system32>
7

Thank you David.

Recompiling SchedProv.mof fixed my error when trying to create a scheduled task with a daily trigger: New-ScheduledTaskTrigger : Method “NewTriggerByDaily” not found

I have a Win 8.1 to Win 10 upgraded machine with
PSVersion 5.0.10586.122
PSCompatibleVersions {1.0, 2.0, 3.0, 4.0…}
BuildVersion 10.0.10586.122
CLRVersion 4.0.30319.42000
WSManStackVersion 3.0
PSRemotingProtocolVersion 2.3
SerializationVersion 1.1.0.1