Go to your folder with all the files and edit 'app.config'.

Make sure the log4net section is in.

Re-compile emulator.
Here is the log4net section in my PlusEmu:
Code:
<log4net>
<appender name="Console" type="log4net.Appender.ColoredConsoleAppender">
<threshold value="DEBUG"/>
<mapping>
<level value="DEBUG"/>
<foreColor value="Cyan, HighIntensity"/>
</mapping>
<mapping>
<level value="ERROR"/>
<foreColor value="Red, HighIntensity"/>
</mapping>
<mapping>
<level value="FATAL"/>
<foreColor value="Red, HighIntensity"/>
</mapping>
<mapping>
<level value="WARN"/>
<foreColor value="Yellow, HighIntensity"/>
</mapping>
<mapping>
<level value="INFO"/>
<foreColor value="White"/>
</mapping>
<layout type="log4net.Layout.PatternLayout">
<conversionPattern value="%date{HH:mm:ss} - [%level%] %message%newline"/>
</layout>
</appender>
<appender name="RollingFileAppender" type="log4net.Appender.RollingFileAppender">
<file value="newlogs\PlusEmu.log"/>
<appendToFile value="true"/>
<rollingStyle value="Size"/>
<maxSizeRollBackups value="30"/>
<maximumFileSize value="10MB"/>
<staticLogFileName value="true"/>
<layout type="log4net.Layout.PatternLayout">
<conversionPattern value="%date %-5level - %logger >> %message%newline"/>
</layout>
</appender>
<appender name="RollingErrorFileAppender" type="log4net.Appender.RollingFileAppender">
<file value="newlogs\errors\PlusEmu_ErrorLog.log"/>
<appendToFile value="true"/>
<rollingStyle value="Size"/>
<maxSizeRollBackups value="30"/>
<maximumFileSize value="10MB"/>
<staticLogFileName value="true"/>
<layout type="log4net.Layout.PatternLayout">
<conversionPattern value="Date/Time: %date%newline%Thread: %t%newline%message%newline%newline"/>
</layout>
<threshold value="ERROR"/>
</appender>
<root>
<level value="DEBUG"/>
<appender-ref ref="Console"/>
<appender-ref ref="RollingFileAppender"/>
<appender-ref ref="RollingErrorFileAppender"/>
</root>
<logger name="NHibernate">
<level value="ERROR"/>
</logger>
<logger name="NHibernate.SQL">
<level value="ERROR"/>
</logger>
</log4net>
Also... Make sure this is there:

Code:
<configSections>
<section name="log4net" type="log4net.Config.Log4NetConfigurationSectionHandler,log4net"/>
</configSections>