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Logging to from ASP.NET MVC

Even though ELMAH works out of the box with ASP.NET MVC, ELMAH and MVC provide some features which interfere with one another. As usual, the great community around ELMAH has done something to fix this, by using the Elmah.Mvc NuGet package. We've built a package for ASP.NET MVC exclusively, which installs all the necessary packages.

To start logging exceptions from ASP.NET MVC, install the Elmah.Io.Mvc NuGet package:

Install-Package Elmah.Io.Mvc
dotnet add package Elmah.Io.Mvc
<PackageReference Include="Elmah.Io.Mvc" Version="5.*" />
paket add Elmah.Io.Mvc

During the installation, you will be asked for your API key (Where is my API key?) and log ID (Where is my log ID?). That's it. Every unhandled exception in ASP.NET MVC is logged to

As part of the installation, we also installed Elmah.MVC, which adds some interesting logic around routing and authentication. Take a look in the web.config for application settings with the elmah.mvc. prefix. For documentation about these settings, check out the Elmah.MVC project on GitHub.

Since Elmah.MVC configures an URL for accessing the ELMAH UI (just /elmah and not /elmah.axd), you can remove the location element in web.config, added by the Elmah.Io.Mvc NuGet package installer.

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