Windows Presentation Foundation
A part of the .NET Framework that provides a unified programming model for building line-of-business desktop applications on Windows.
2,678 questions
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Unable to add Nuget Packages or Toolkits. Whether its the Console. Whether its through the Package Manager Console or through the Tools Menu, I get the same error.
Do you have the latest update for VS 2019?
Is your nuget feed using this https://api.nuget.org/v3/index.json?
What version of the .net framework are you using for the wpf app?