$MAHOUT_HOME/bin/mahout org.apache.mahout.classifier.bayes.PrepareTwentyNewsgroups -p examples/bin/work/20news-bydate/20news-bydate-train -o examples/bin/work/20news-bydate/bayes-train-input -a org.apache.mahout.vectorizer.DefaultAnalyzer -c UTF-8
no HADOOP_CONF_DIR or HADOOP_HOME set, running locally
Feb 10, 2011 5:22:35 AM org.slf4j.impl.JCLLoggerAdapter warn
WARNING: No org.apache.mahout.classifier.bayes.PrepareTwentyNewsgroups.props found on classpath, will use command-line arguments only
Feb 10, 2011 5:22:35 AM org.slf4j.impl.JCLLoggerAdapter error
SEVERE: MahoutDriver failed with args: [-p, examples/bin/work/20news-bydate/20news-bydate-train, -o, examples/bin/work/20news-bydate/bayes-train-input, -a, org.apache.mahout.vectorizer.DefaultAnalyzer, -c, UTF-8, null]
org.apache.mahout.vectorizer.DefaultAnalyzer
Exception in thread "main" java.lang.ClassNotFoundException: org.apache.mahout.vectorizer.DefaultAnalyzer
	at java.net.URLClassLoader$1.run(URLClassLoader.java:202)
	at java.security.AccessController.doPrivileged(Native Method)
	at java.net.URLClassLoader.findClass(URLClassLoader.java:190)
	at java.lang.ClassLoader.loadClass(ClassLoader.java:307)
	at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301)
	at java.lang.ClassLoader.loadClass(ClassLoader.java:248)
	at java.lang.Class.forName0(Native Method)
	at java.lang.Class.forName(Class.java:169)
	at org.apache.mahout.classifier.bayes.PrepareTwentyNewsgroups.main(PrepareTwentyNewsgroups.java:87)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
	at java.lang.reflect.Method.invoke(Method.java:597)
	at org.apache.hadoop.util.ProgramDriver$ProgramDescription.invoke(ProgramDriver.java:68)
	at org.apache.hadoop.util.ProgramDriver.driver(ProgramDriver.java:139)
	at org.apache.mahout.driver.MahoutDriver.main(MahoutDriver.java:172)