Unable to install NuGet package as NuGet packages are Offline Only in Visual Studio

You may be facing this issue when working with recently installed Visual Studio.

Root Cause:

By default, Visual Studio comes with only one source of NuGet package, which is Microsoft Visual Studio Offline Packages. See below picture. Unable to install NuGet package as NuGet packages are Offline Only in Visual Studio

Solution

To fix this issue, just add one more NuGet package source with below values.

That's all :)