If you are using ASP.Net Core 1.x, you need to include the Microsoft.Extensions.Logging dependencies to your project explicitly. In ASP.Net Core 2.x, these dependencies are included by default.

Take advantage of Elmah logging framework and the Elmah.io log monitoring service to manage errors in your ASP.Net Core application ...

.NET Core provides a framework that logging systems can be snapped into. However, what's most important about this framework is how you write your messages out. It's the quality of the message that ...