设置classpath后,包org.apache.hadoop.conf不存在

我是hadoop的初学者,使用hadoop的初学者指南作为教程.

我使用的是mac osx 10.9.2和hadoop 1.2.1版

我在终端中调用echo $ PATH时设置了所有相应的类路径:

这是我得到的结果:

/Library/Frameworks/Python.framework/Versions/2.7/bin:/Users/oladotunopasina/hadoop-1.2.1/hadoop-core-1.2.1.jar:/Users/oladotunopasina/hadoop-1.2.1/bin:/ USR /股/ Grails的/ bin中:在/ usr /共享/常规/斌:/Users/oladotunopasina/.rvm/gems/ruby-2.1.1/bin:/Users/oladotunopasina/.rvm/gems/ruby-2.1.1 @全球/斌:/Users/oladotunopasina/.rvm/rubies/ruby-2.1.1/bin:在/ usr /本地/ Heroku的/ bin中:在/ usr/bin中:/ bin中:/ usr/sbin目录:/ sbin目录:/ USR /local/bin:/Users/oladotunopasina/.rvm/bin:/Users/oladotunopasina/.rvm/bin

我尝试编译WordCount1.java,我收到以下错误:

WordCount1.java:2: package org.apache.hadoop.conf does not exist
import org.apache.hadoop.conf.Configuration ;
                         ^
WordCount1.java:3: package org.apache.hadoop.fs does not exist
import org.apache.hadoop.fs.Path;
                       ^
WordCount1.java:4: package org.apache.hadoop.io does not exist
import org.apache.hadoop.io.IntWritable;
                       ^
WordCount1.java:5: package org.apache.hadoop.io does not exist
import org.apache.hadoop.io.Text;
                       ^
WordCount1.java:6: package org.apache.hadoop.mapreduce does not exist
import org.apache.hadoop.mapreduce.Job;
                              ^
WordCount1.java:7: package org.apache.hadoop.mapreduce does not exist
import org.apache.hadoop.mapreduce.Mapper;
                              ^

请帮助.