Visual Studio 2017 only has offline Nuget Packages for .NET Core 2.x. How to get online packages?

Solution for Visual Studio 2017 only has offline Nuget Packages for .NET Core 2.x. How to get online packages?
is Given Below:

I want to get NuGet Packages from Nuget online, but Visual Studio is only giving me ‘Microsoft Visual Studio Offline Packages’ as an option.

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I have tried adding another package source using the following URLS:

and a few others, but I keep getting the following error(s):

[Package source] Unable to load the service index for source http://packagesource.
An error occurred while sending the request.
The remote name could not be resolved: 'packagesource'
[Nuget Online] The V2 feed at 'https://www.nuget.org/Search()?$filter=IsAbsoluteLatestVersion&searchTerm=''&targetFramework=''&includePrerelease=true&$skip=0&$top=26&semVerLevel=2.0.0' returned an unexpected status code '404 Not Found'.

How can I get online packages for .NET Core?

I think the answer is:

  1. Right click on the project and choose Manage NuGet packages.

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  1. Click on the settings cog in the top right corner of the Nuget packages tab.

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  1. In the settings dialog (as shown in the screenshot in the question), click on the + button.
  2. Give the new source a name and a source of https://api.nuget.org/v3/index.json.

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This appears to work for me

You can try delete the resource “http://packagesource“,or reduce the sort.