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Editorial Team
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Asked: 2026-05-13T13:19:02+00:00

I have a solution that links to several library projects located elsewhere on my

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I have a solution that links to several library projects located elsewhere on my hard drive (outside my solution folder).

I would like to change things so that these project folders are now inside my solution folder.

So far, I have copied the project folders into my solution folder. Taking a look at the .sln file for my project, I noticed that there are a bunch of entries that looks like this:

Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "FooBar", "..\..\..\Libraries\FooBar\FooBar.csproj", "{89FABBC5-4019-4887-AFE3-B005B0471486}"

I was thinking, Wouldn’t it be nice and easy if I could just get rid of ..\..\..\Libraries\ from all the relative paths?

However, these GUIDs are scaring me off. If I leave the GUIDs the same, will this cause problems?

Oh, and if you know a better way to do this, please let me know 🙂

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1 Answer

  1. Editorial Team

    For the most part, this seems to work, but I ran into problems with my Setup Project/Installer. When I re-opened my solution after editing the .sln file, my solution wouldn’t build. I got the following error:

    An error occurred while validating. HRESULT=’80004005′

    I tried completely deleting and rebuilding my Setup Project from scratch, but the error remained. The only thing that worked was to remove and re-add each project using the Solution Explorer in Visual Studio.

    So the lesson is: Edit the .sln project file at your own risk. If you have a Setup Project, it very well might break.

    Update

    Here’s a link further explaining the “HRRESULT” error:
    https://connect.microsoft.com/VisualStudio/feedback/ViewFeedback.aspx?FeedbackID=434666

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