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Any idea to solve this problem?

I just created a new project and I want tu use System.IO.Pipes I install the package System.IO.Pipes with NuGet, he is my reference directory but when I try to build I have :

Could not load file or assembly 'System.IO.Pipes, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a'. Le fichier spécifié est introuvable.

Any Idea to solve this issue?

Thanks

Ross Ridge
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Jimmy Fraiture
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4 Answers4

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I faced a similar problem a few months back. Updating the NuGet Package Manager, the clean the solution, Restart VS IDE and then reinstalling library worked for me.

Rahul Vashishtha
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Can you try the following;

  1. Clean solution
  2. Rebuild solution

If this fails do the following;

  1. Uninstall the package
  2. Remove the DLL package from packages on your Solution held on your PC
  3. Reinstall package
Jonathan Sear
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  • I try this but nothing changed. An intresting point is that I didn't had the DLL package in the folder. Is it possible that NuGet doesn't really install the package? – Jimmy Fraiture Mar 10 '19 at 19:04
  • Humm, do you want to try -update-package-reinstall https://learn.microsoft.com/en-us/nuget/consume-packages/reinstalling-and-updating-packages – Jonathan Sear Mar 10 '19 at 19:09
  • It tells me "Nothing tu update". But in my reference list I have System.IO.Pipes with a blue icon next to it – Jimmy Fraiture Mar 10 '19 at 19:13
  • I think you have installed a .net core package and you may of installed .net framework. See here https://stackoverflow.com/questions/50499745/nuget-package-reference-blue-icon-in-visual-studio-2017 – Jonathan Sear Mar 10 '19 at 19:16
  • Also try what they say on this page but nothing changed. And the NuGet options were already fine :/ – Jimmy Fraiture Mar 10 '19 at 19:24
  • I am guessing if the package not in your packages folder it’s not installed so probably worth just uninstalling the whole thing and reinstalling. But as it says “system” I am not sure if it should be in the packages folder. What does your nuget config say? Also what project have you installed? And what nugget package have you installed. Are they both .Net core? Or are they both .Net framework? – Jonathan Sear Mar 10 '19 at 19:32
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Finally solved the problem :

  1. Uninstall VS IDE
  2. Reinstall it with
  3. Install .NET Framework and Core with the VS installer
  4. Create a new .Net project

Thanks for your help. It was probably due to a corrupted file in the .Net Framework package

Jimmy Fraiture
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Can you try the following;

  1. Clean solution
  2. Uninstall the package
  3. VS IDE -> Tools -> Options
  4. Nuget Package Manager -> General
  5. Clean Nuget Cache
  6. Reinstall package
Waider Martins
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