log4net.Config.XmlConfigurator.Configure();
This guide provides the specific steps to download and install it into your project.
If you are replacing a DLL in an existing application, ensure the PublicKeyToken matches. For Apache log4net (newer signed versions), the token is usually 669e0ddf0bb1aa2a . log4net version 1.2.10.0 download
The 1.2.10 release is notorious in the .NET community due to a that occurred with version 1.2.11.
Once installed, you need to configure your App.config or Web.config . Here is a minimal example for version 1.2.10: log4net
Does anyone know a reliable source for this exact old version (1.2.10.0)?
<section name="log4net" type="log4net.Config.Log4NetConfigurationSectionHandler, log4net" /> <section name="log4net" type="log4net
If you cannot use NuGet (e.g., working in a very old environment or restricted network), you can download the binary files directly.
If you are getting runtime errors regarding "strong name" or "public key token" mismatches, be aware that later versions of log4net (like 1.2.11+) changed the assembly versioning scheme (they started using 1.2.11.0 , then 1.2.12.0 , etc.).
If you prefer to download the package manually, you can try the following:
<log4net> <appender name="ConsoleAppender" type="log4net.Appender.ConsoleAppender"> <layout type="log4net.Layout.PatternLayout"> <conversionPattern value="%date [%thread] %-5level %logger - %message%newline" /> </layout> </appender> <root> <level value="INFO" /> <appender-ref ref="ConsoleAppender" /> </root> </log4net>