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WMI Helper V6 Import Error

답변됨 WMI Helper V6 Import Error

  • Wednesday, October 31, 2012 12:40 AM
     
     
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    When I try to import this module I get the following error:

    Missing expression after unary operator '-'.

    At C:\Documents and Settings\User\My Documents\WindowsPowerShell\Modules\HSGMImoduleV6.psm1:310 char:10

    +  - <<<< ExpandProperty Qualifiers |

    + CategoryInfo : ParserError: (-:Sting) [], ParentContainsErrorRecordException

    + FullyQualifiedErrorID  : MissingExpressionAfterOperator

    Import-Module : The specified module 'HSGMImoduleV6' was not loaded because no valid module file was found in any module directory.

    At line:1 car:14

    + import-module <<< -name HGMImoduleV6

    + CategoryInfo InvalidArgument: (:) [Import-Module], ParameterbindingException

    + FullyQualifiedErrorID : NameParameterNotFound,Microsoft.Powershell.Commands.ImportModuleCommand

    The actual line looks like this:

      [wmiclass]$class = "\\{0}\{1}:{2}" -f $computer,$namespace,$class 
      $class.Properties |  
          Select-object @{Name="PropertyName";Expression={$_.name}} ` 
            -ExpandProperty Qualifiers |  
          Where-object {$_.Name -eq "key"} |  
          ForEach-Object {$_.PropertyName} 

    Hi, I like clean computers :-p


    • Edited by mrhobbeys Wednesday, October 31, 2012 6:15 AM
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  • Wednesday, October 31, 2012 9:53 AM
     
     
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    Try to replace this with one line:

    Select-object @{Name="PropertyName";Expression={$_.name}} ` -ExpandProperty Qualifiers |

    ...

    and see if this helps

    Also, there is known bug with expandproperty that it throws error when property is null

    You can try to replace it with | foreach-object {$_.quailfiers}

     
  • Wednesday, October 31, 2012 10:27 AM
     
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    Also, there is known bug with expandproperty that it throws error when property is null

    You can try to replace it with | foreach-object {$_.quailfiers}

    Interesting.  I didn't know this was considered a bug, but a major design error.  In fact, to avoid this, rather use dot-notation, because this doesn't return an error:

    Get-ChildItem | Select-Object -ExpandProperty junk # Results in errors
(Get-ChildItem).junk # Returns $null
    (Get-ChildItem).name # Returns names
    I'm not sure if this is a new feature of Powershell V3. Can you confirm?

    Grant Ward, a.k.a. Bigteddy

     
  • Wednesday, October 31, 2012 10:49 AM
     
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    Sorry for being not specific. It is bug for V2, fixed in v3

    http://connect.microsoft.com/PowerShell/feedback/details/657211/select-object-expand-property-throws-and-exception-and-dies-when-property-is-null

     
  • Wednesday, October 31, 2012 4:29 PM
     
     
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    Thank you, I tried this now I can import but I get the following error when I try to run the function I am trying to use.

    Select-Object : A positional parameter cannot be found that accepts argument ' -ExpandProperty'.
    At C:\Documents and Settings\Spencer\My Documents\WindowsPowerShell\Modules\HSGMImoduleV6\HSGMImoduleV6.psm1:307 char:1
    4
    + Select-object <<<<  @{Name="PropertyName";Expression={$_.name}} ` -ExpandProperty Qualifiers |
        + CategoryInfo          : InvalidArgument: (:) [Select-Object], ParameterBindingException
        + FullyQualifiedErrorId : PositionalParameterNotFound,Microsoft.PowerShell.Commands.SelectObjectCommand

    I was trying to run: Get-WmiKey win32_product

    I'm trying to figure this out: http://blogs.technet.com/b/heyscriptingguy/archive/2011/12/14/use-powershell-to-find-and-uninstall-software.aspx

    ***EDIT

    I might have got it. I will post back after I have messed with this a while.

    Hi, I like clean computers :-p


    • Edited by mrhobbeys Wednesday, October 31, 2012 4:34 PM
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  • Thursday, November 01, 2012 12:56 PM
     
     
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    You should remove '`' character. this indicates that command continues on next line but when you puts whole command in a one line it's breaking code