Failed obtaining configuration for Common.Logging from configuration section 'common/logging'
c#, common.logging, log4net
Solution
There are two problems with your application (the one I downloaded):
- Your configSections in app.config looks like this:
<configSections>
<section name="log4net" type="log4net.Config.Log4NetConfigurationSectionHandler, log4net"/>
<sectionGroup name="common">
<section name="logging" type="Common.Logging.ConfigurationSectionHandler, Common.Logging" />
</sectionGroup>
<section name="log4net" type="log4net.Config.Log4NetConfigurationSectionHandler,log4net" />
</configSections>
Notice that the log4net-section is declared twice? Remove the first one.
- After removing the first log4net-section, I get the following:
Could not load file or assembly 'log4net, Version=1.2.11.0, Culture=neutral, PublicKeyToken=669e0ddf0bb1aa2a' or one of its dependencies. The located assembly's manifest definition does not match the assembly reference. (Exception from HRESULT: 0x80131040)
I downloaded log4net 1.2.11.0 from the log4net website, unzipped it, unblocked the dll and replaced the log4net in your example and it seems to work.
Problem
I'm trying to configure a console application with the following logging assemblies: - Common.Logging.dll (2.1.0.0) - Common.Logging.Log4Net1211.dll (2.1.0.0) - log4net.dll (1.2.11.0) If the logger gets configured programmatically then everything works fine: ``` NameValueCollection properties = new NameValueCollection(); properties["showDateTime"] = "true"; Common.Logging.LogManager.Adapter = new Common.Logging.Simple.ConsoleOutLoggerFactoryAdapter(properties); ``` But if I try to launch it using the following configuration file, it blows up: ``` <?xml version="1.0"?> <configuration> <configSections> <sectionGroup name="common"> <section name="logging" type="Common.Logging.ConfigurationSectionHandler, Common.Logging" /> </sectionGroup> </configSections> <common> <logging> <factoryAdapter type="Common.Logging.Log4Net.Log4NetLoggerFactoryAdapter, Common.Logging.Log4Net"> <arg key="configType" value="FILE-WATCH"/> <arg key="configFile" value="~/Log4NET.xml"/> </factoryAdapter> </logging> </common> </configuration> ``` These are the relevant error messages: ``` {"Unable to cast object of type 'System.Configuration.DefaultSection' to type 'System.Configuration.AppSettingsSection'."} {"Failed obtaining configuration for Common.Logging from configuration section 'common/logging'."} ``` It seems to being unable to parse my configuration file, does anyone know what the correct format should be or is it something else that's wrong? I created my configuration file using the official documentation.