I received this error when trying to add the Json.NET support to my project:
Could not install package 'MongoDB.Integrations.JsonDotNet 1.2.0'. You are trying to install this package into a project that targets '.NETFramework,Version=v4.6.1', but the package does not contain any assembly references or content files that are compatible with that framework. For more information, contact the package author.
Please advise if this package was intended to be released for dotnetcore only.