asp.net - log4net rolling file appender not working -

i have following configuration:

<log4net>     <root>       <level value="all"/>       <appender-ref ref="rollingfileappender"/>     </root>     <appender name="rollingfileappender" type="log4net.appender.rollingfileappender">       <file value="mylog.log"/>       <appendtofile value="true"/>       <preservelogfilenameextension value="true"/>       <rollingstyle value="composite"/>       <datepattern value=".yyyymmdd"/>       <maximumfilesize value="5mb"/>       <countdirection value="1"/>       <maxsizerollbackups value="-1"/>       <staticlogfilename value="false"/>       <layout type="log4net.layout.patternlayout">         <param name="conversionpattern" value="%date [%thread] %-5level %logger - %message%newline"/>       </layout>     </appender>   </log4net> 

and following code in global.asax:

sub application_start()         arearegistration.registerallareas()          registerglobalfilters(globalfilters.filters)         registerroutes(routetable.routes)          basicconfigurator.configure();          logmanager.getlogger(typeof(global_asax)).error("logger configured")       end sub 

for tag file in configuration above. have tried c:\my folder\mylog.log seen above mylog.log

however, not see file generated anywhere , there no exceptions.

environment: vs 2013 asp.net vb. running via debug menu. when run iisexpress started vs2013 , site runs. no log seen.

i have tried various combinations file tag nothing works.

can please?

this used work me (i've switched lighter , better configurable nlog), log rolled daily, written in subfolder named "logs" under app's path.

  <appender name="rollingdebugappender" type="log4net.appender.rollingfileappender">     <file value="logs\" />     <datepattern value="yyyy-mm-dd'-full.log'" />     <staticlogfilename value="false" />     <appendtofile value="true" />     <rollingstyle value="composite" />     <maxsizerollbackups value="100" />     <maximumfilesize value="5mb" />     <layout type="log4net.layout.patternlayout">       <conversionpattern value="%date [%thread] %-5level %logger [%property{ndc}] - %message%newline" />     </layout>   </appender>