I am having some trouble getting the WordCount tutorial working even when following the tutorial example exactly.  Can anyone advise on corrective measures?  Is this a flaw in the VM?   Admittedly, I am somewhat new to java, but it appears that the problem is related to CLASSPATH.   When executing the command:   $ javac -cp /usr/lib/hadoop/*:/usr/lib/hadoop/client-0.20/* -d wordcount_classes WordCount.java   I get the error message:   incorrect classpath: /usr/lib/hadoop/* incorrect classpath: /usr/lib/hadoop/client-0.20/* ---------- 1. ERROR in WordCount.java (at line 6) import org.apache.hadoop.fs.Path; ^^^^^^^^^^ The import org.apache cannot be resolved [CONTINUES ON FOR 48 ERRORS...]   ---------- 48. ERROR in WordCount.java (at line 55) JobClient.runJob(conf); ^^^^^^^^^ JobClient cannot be resolved   There were some blog posts indicating that I needed to export the CLASSPATH but to no avail.     $ export CLASSPATH=/usr/lib/hadoop/*:/usr/lib/hadoop/client-0.20/*:$CLASSPATH   This yielded the same result when compiling.  Any advice?   Thank you.       ... View more