3An error occurred while trying to restore packages: 3Unable to retrieve results from one or more sources Do you want to configure this solution to download and restore missing NuGet packages during build? A .nuget folder will be added to the root of the solution that contains files that enable package restore. Error details Error occurred Restart search SAn error occurred while configuring the solution to restore NuGet packages on build SMultiple packages failed to uninstall. Restart Visual Studio to finish the process. VThe package at '{0}' failed to uninstall. Restart Visual Studio to finish the process.