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Asked: 2026-06-14T00:55:16+00:00

I’m trying to open a TFS Build Process Template ( DefaultTemplate.11.1.xaml ) file, incorporating

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I’m trying to open a TFS Build Process Template (DefaultTemplate.11.1.xaml) file, incorporating an activity from Community TFS Build Extensions. I’m following instractions from here, section Get the custom activities into Visual Studio. I had no problems with that back in the RC version of Visual Studio 2012 but now, after upgrading to the release version, an attempt to open the file ends up in an error:

System.Xaml.XamlException: ‘The type ‘InArgument(mtbwa:BuildSettings)’ of property ‘BuildSettings’ could not be resolved.’

TFS itself doesn’t seem to have any problems running builds based on this template.

I am able to open the file without the trick, but then of course the custom activities are not displayed properly.

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1 Answer

  1. Editorial Team

    Check this out:

    http://blogs.blackmarble.co.uk/blogs/rfennell/post/2012/08/30/Type-InArgument(mtbwaBuildSettings)-of-property-BuildSettings-errors-in-TFS-2012-RTM-builds.aspx

    Quote:

    “if the Visual Studio class library project you were using to manage the process template editing was targeting .NET 4.5, it needed to be 4.0. Well with Visual Studio 2012 RTM this is no longer the case, in fact it is the other way around.”

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