title: How to resolve "NuGet package restore failed" in Visual Studio?
body: <p>I got an error</p>
  
  <blockquote>
    <p>NuGet package restore failed. Please see Error List window for detailed warnings and errors.</p>
  </blockquote>
  
  <p>while building my solution. Package manager can't restore my 2 projects:</p>
  
  <blockquote>
    <p>Unable to find project information for 'C:\(...)\MultiLinker.Courier.Dext.Model.csproj'. The project file may be invalid or missing targets required for restore.    </p>
  </blockquote>
  
  <p>In tools I allow package manage to download packages:</p>
  
  <p><a href="https://i.stack.imgur.com/9yLvW.png" rel="noreferrer"><img src="https://i.stack.imgur.com/9yLvW.png" alt="enter image description here"></a></p>