The get nearest framework operation is what NuGet uses to select one framework from many available framework assets in a package based on the project's framework. Enter one project framework and one or more package frameworks.
netstandard2.1 (netstandard2.1)
package framework is the nearest to the netcoreapp3.1
(netcoreapp3.1) project framework.
The package frameworks that were considered were:
net20
(net20)
net35
(net35)
net40
(net40)
net45
(net45)
net5.0
(net50)
netstandard1.4
(netstandard1.4)
netstandard1.6
(netstandard1.6)
netstandard2.0
(netstandard2.0)
netstandard2.1
(netstandard2.1)