log4net will not read from app.config

It seems that the app.config file was not configured to be watched by log4net.

I added the following line to AssemblyInfo.cs and logging is now enabled:

[assembly: log4net.Config.XmlConfigurator(Watch = true)]

Weird, since I didn't add this line to the the project that was working.

EDIT:

Looks like the project that was working did have the line after all. I must have forgotten.

// This will cause log4net to look for a configuration file 
// called [ThisApp].exe.config in the application base 
// directory (i.e. the directory containing [ThisApp].exe) 
// The config file will be watched for changes. 
[assembly: log4net.Config.XmlConfigurator(Watch = true)]

The solution for me was to use XmlConfigurator.Configure() in the program's startup code. However, my situation differed in that I was using the Autofac.log4net module to register the ILog in an Autofac container. In this instance, using XmlConfiguratorAttribute (with Watch set to either true or false) left the logger unconfigured.