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Editorial Team
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Asked: 2026-05-28T15:48:04+00:00

I am using the OpenXMLSDK for some DOCX manipulation. I am trying to compile

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I am using the OpenXMLSDK for some DOCX manipulation. I am trying to compile the OpenXML Power Tools source for help with this. I read that I needed to instal the MS Power Shell for this to compile (for its use of Cmdlets), so I downloaded it from here. The first option, Windows Management Framework 3.0 CTP1. I am still having problems with the OutpuTypeAttribute class. It is not available in my code. MSDN says its in the System.Management.Automation namespace, which I am ‘using’. I am still getting this error message for any references to this class:

“The type or namespace name ‘OutputTypeAttribute’ could not be found (are you missing a using directive or an assembly reference?)”.

So, does anyone know what is going on here?

BTW, I am on Windows 7 and using VS 2010.

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1 Answer

  1. Editorial Team

    For some reason the C:\Program Files\Reference Assemblies\Microsoft\WindowsPowerShell\v1.0\System.Management.Automation.dll was an old version and it never got updated.

    What I did was this:
    In a powershell I executed this command:

    Copy ([OutputType].Assembly.Location) ~/Desktop

    Then I moved the dll file that is copied to the desktop to the Reference Assemblies directory shown above. This new file is about 3mb larger than the older file. I also had to convert my project to .NET 4 because this new DLL required it.

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