error in log4j.properties

[sulthan mathina]

log4j.properties
# The following properties set the logging levels and log appender. The
# log4j.rootCategory variable defines the default log level and one or more
# appenders. For the console, use 'S'. For the daily rolling file, use 'R'.
# For an HTML formatted log, use 'H'.

log4j.rootCategory=DEBUG, S,R

log4j.logger.com.bgs.entity=INFO
# The following properties configure the Daily Rolling File appender.
log4j.appender.R = org.apache.log4j.DailyRollingFileAppender
log4j.appender.R.File = c:/excel/sm7.log
log4j.appender.R.Append = true
log4j.appender.R.DatePattern = '.'yyy-MM-dd
log4j.appender.R.layout = org.apache.log4j.PatternLayout
log4j.appender.R.layout.ConversionPattern = %d{yyyy-MM-dd HH:mm:ss},[%p],%c{1},%M,%m%n

In java:Main.java

public class Main
{
static Logger logger = Logger.getLogger("Main");

Error in console , while executing java file

log4j:WARN No appenders could be found for logger (Main).
log4j:WARN Please initialize the log4j system properly.

[sri ramvaithiyanathan]

sulthan mathina wrote:log4j.properties
log4j.rootCategory=DEBUG, S,R

check whether you commented the above mentioned lines.
and remove the S.your code should be like this

log4j.rootCategory=DEBUG,R 

Because you haven't used S in your log4j.properties file.
If you use S you will get the following error

log4j:ERROR Could not find value for key log4j.appender.S
log4j:ERROR Could not instantiate appender named "S".

In your java class use this way

static Logger logger = Logger.getLogger("Main.class");

instead of static Logger logger = Logger.getLogger("Main");

Regards,
Sriram.V