Log4Net does not write to file.

[WebService(Namespace = "http://tempuri.org/")]
[WebServiceBinding(ConformsTo = WsiProfiles.BasicProfile1_1)]
public class Service : System.Web.Services.WebService
{
    private static readonly ILog logger = LogManager.GetLogger(System.Reflection.MethodBase.GetCurrentMethod().DeclaringType);
 
    public Service () {
        log4net.Config.XmlConfigurator.Configure();
        //log4net.Config.XmlConfigurator.Configure(new System.IO.FileInfo(@"log4net.xml"));
        logger.Debug("WebServiceCreated created.");
    }
 
    [WebMethod]
    public string InvokeLogger() {
        logger.Info("Hello World invoked.");
        return logger.IsInfoEnabled.ToString();
    }
    
}
 
<?xml version="1.0"?>
 
<configuration xmlns="http://schemas.microsoft.com/.NetConfiguration/v2.0">
<configSections>
    <section name="log4net" type="log4net.Config.Log4NetConfigurationSectionHandler,log4net"/>
  </configSections>
	<appSettings/>
	<connectionStrings/>
 
  <log4net>
    <appender name="FileAppender" type="log4net.Appender.FileAppender">
      <file value="WebService.log"/>
      <appendToFile value="true"/>
      <lockingModel type="log4net.Appender.FileAppender+MinimalLock"/>
      <layout type="log4net.Layout.PatternLayout">
        <conversionPattern value="%date [%thread] %-5level %logger - %message%newline"/>
      </layout>
    </appender>
    <root>
      <level value="ALL"/>
      <appender-ref ref="FileAppender"/>
    </root>
  </log4net>
</configuration>