problem with log4j.xml

[msg2ajay]

hello,
I have configured %CATALINA_HOME% in Win Environ.But as I configured to "${catalina.home}/MQLog/info/info.log" for "file" in log4j.xml I can't see the log file after running my application.

i have place INFO in my code, I can see INFO log in Tomcat console,

my log4j.xml file is as below.
---------------------------

[code]
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE log4j:configuration SYSTEM "log4j.dtd" >
<log4j:configuration>
<!-- INFO -->
<appender name="debugfile"
class="org.apache.log4j.RollingFileAppender">
<param name="maxFileSize" value="100KB" />
<param name="maxBackupIndex" value="5" />
<param name="File" value="${catalina.base}/MQLog/debug/debug.log" />
<layout class="org.apache.log4j.PatternLayout">
<param name="ConversionPattern"
value="%d{ABSOLUTE} %5p %c{1}:%L - %m%n" />
</layout>
<filter class="org.apache.log4j.varia.LevelRangeFilter">
<param name="LevelMin" value="debug" />
<param name="LevelMax" value="debug" />
</filter>
</appender>

<root>
<appender-ref ref="info"/>

</root>
</log4j:configuration>
[code]

Is there any thing i need to configure additionally.

ThanQ
Ajay.