that's funny
I am using nutch0.8 in eclipse
there is no error with crawling
but error in searching while configurating

log4j:ERROR setFile(null,true) call failed.
java.io.FileNotFoundException: \ (ϵͳÕÒ²»µ½Ö¸¶¨µÄ·¾¶¡£)
 at java.io.FileOutputStream.openAppend(Native Method)
 at java.io.FileOutputStream.<init>(Unknown Source)
 at java.io.FileOutputStream.<init>(Unknown Source)
 at org.apache.log4j.FileAppender.setFile(FileAppender.java:289)
 at org.apache.log4j.FileAppender.activateOptions(FileAppender.java:163)
 at 
org.apache.log4j.DailyRollingFileAppender.activateOptions(DailyRollingFileAppender.java:215)
 at org.apache.log4j.config.PropertySetter.activate(PropertySetter.java:256)
 at 
org.apache.log4j.config.PropertySetter.setProperties(PropertySetter.java:132)
 at 
org.apache.log4j.config.PropertySetter.setProperties(PropertySetter.java:96)
 at 
org.apache.log4j.PropertyConfigurator.parseAppender(PropertyConfigurator.java:654)
 at 
org.apache.log4j.PropertyConfigurator.parseCategory(PropertyConfigurator.java:612)
 at 
org.apache.log4j.PropertyConfigurator.configureRootCategory(PropertyConfigurator.java:509)
 at 
org.apache.log4j.PropertyConfigurator.doConfigure(PropertyConfigurator.java:415)
 at 
org.apache.log4j.PropertyConfigurator.doConfigure(PropertyConfigurator.java:441)
 at 
org.apache.log4j.helpers.OptionConverter.selectAndConfigure(OptionConverter.java:468)
 at org.apache.log4j.LogManager.<clinit>(LogManager.java:122)
 at org.apache.log4j.Logger.getLogger(Logger.java:104)
 at 
org.apache.commons.logging.impl.Log4JLogger.getLogger(Log4JLogger.java:229)
 at org.apache.commons.logging.impl.Log4JLogger.<init>(Log4JLogger.java:65)
 at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native 
Method)Total hits: 0

 at sun.reflect.NativeConstructorAccessorImpl.newInstance(Unknown Source)
 at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(Unknown 
Source)
 at java.lang.reflect.Constructor.newInstance(Unknown Source)
 at 
org.apache.commons.logging.impl.LogFactoryImpl.newInstance(LogFactoryImpl.java:529)
 at 
org.apache.commons.logging.impl.LogFactoryImpl.getInstance(LogFactoryImpl.java:235)
 at 
org.apache.commons.logging.impl.LogFactoryImpl.getInstance(LogFactoryImpl.java:209)
 at org.apache.commons.logging.LogFactory.getLog(LogFactory.java:351)
 at org.apache.nutch.searcher.NutchBean.<clinit>(NutchBean.java:42)
log4j:ERROR Either File or DatePattern options are not set for appender 
[DRFA]. 




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