CODEWITHSUNDEEP
c#.netasp.net-coreserilog
ashilon
ashilon

Reputation: 1941

Serilog's AddSerilog is not recognized

I'm trying to call loggerFactory.AddSerilog(); as per this documentation, but the AddSerilog method is not recognized:

"Error CS1061 'ILoggerFactory' does not contain a definition for 'AddSerilog' and no extension method 'AddSerilog' accepting a first...".

I'm using ASP.NET CORE with the full .NET framework. What am I doing wrong?

Upvotes: 52

Views: 43595

Answers (5)

Alex Ho
Alex Ho

Reputation: 169

If you have package Serilog.Extensions.Logging added to your project already, it could be just a matter of adding using Serilog; to the top of your code file.

Upvotes: 3

Divan
Divan

Reputation: 402

On .NET Core 3.1, within a console app, I simply had to install the serilog.extentions.hosting NuGet package.

enter image description here

This will add the below line to the ItemGroup within YourProjectName.csproj

<PackageReference Include="Microsoft.Extensions.Hosting" Version="3.1.7" />

Upvotes: 5

nbrosz
nbrosz

Reputation: 924

Different circumstance, but same problem. In my case, I was using .Net Core 2.1 and had a NuGet reference to Serilog, but was missing a reference to Serilog.AspNetCore. The issue first manifested as .UserSerilog() not being found for the IWebHostBuilder of my CreateWebHostBuilder static method under Program.cs.

Adding the Serilog.AspNetCore NuGet package to my project solved the problem.

Upvotes: 42

Teerachai
Teerachai

Reputation: 996

You may forget this following line in project.json

"Serilog.Extensions.Logging": "1.0.0",

See also https://carlos.mendible.com/2016/09/19/step-step-serilog-asp-net-core/

Upvotes: 98

James Wierzba
James Wierzba

Reputation: 17538

The posted answer is correct but I will add that you may want to use the NuGet package manager that way you can get the latest version.

Right click on solution

-> Choose "Manage NuGet packages for solution"

-> type "serilog.extensions.logging" into search box

-> Click on Serilog.Extensions.Logging and press install

You will get a dropdownlist of the different versions you should choose the latest.

Or quicker from Package Manager console verify that Default Project drop-down has your project selected and run 

install-package Serilog.Extensions.Logging

Upvotes: 24

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