Mikel
来源： 无法识别的配置节log4net的(Unrecognized configuration section log4net) – herizai – 博客园
每个配置文件中只允许存在一个 <configSections> 元素，并且，如果存在该元素，它还必须是根 <configuration> 元素的第一个子元素。
问题：
I have this code in web.config:
<log4net>
<root>
<level value="ALL" />
<appender-ref ref="LogFileAppender" />
</root>
<appender name="LogFileAppender" type="log4net.Appender.RollingFileAppender">
<param name="File" value="D:\logFileFaculty.txt" />
<param name="AppendToFile" value="true" />
<rollingStyle value="Size" />
<maxSizeRollBackups value="10" />
<maximumFileSize value="10MB" />
<staticLogFileName value="true" />
<layout type="log4net.Layout.PatternLayout">
<param name="ConversionPattern" value="%date [%thread] %-5level %logger [%property{NDC}] - %message%newline" />
</layout>
</appender>
</log4net>
And I have downloaded log4net.dll and placed it in Bin Folder.
In one of My aspx.cs pages I have added this code:
using log4net; [assembly: log4net.Config.XmlConfigurator(Watch = true)] private static readonly log4net.ILog log = log4net.LogManager.GetLogger(System.Reflection.MethodBase.GetCurrentMethod().DeclaringType);
But it’s giving error as Unrecognized configuration section log4net.
解决方案：
You need to declare the log4net section:
<configSections>
<section name="log4net" type="log4net.Config.Log4NetConfigurationSectionHandler, log4net" />
</configSections>
Take a closer look at the documentation which explains the necessary things to do.
