NuGet Pack -- Failed to retrieve information from remote source

VisualStudio 2019: Tools > Nuget Package Manager > Package Sources:

Select nuget.org and specifically unselect the others options

Add NuGet.org reference in the package source Go to tools -> NuGet package manager-> package manager settings Select NuGet Package manager and then Package sources Add the following source library.

Name: NuGet.org

Source: {"\Https://api.nuget.org/v3/index.json}