hadoop运行报错?报错

日志：

31-01-2017 14:00:56 CST calc_package_dict ERROR - Error: java.lang.RuntimeException: java.lang.ClassNotFoundException: Class mobvista.dmp.datasource.gender.CalcPackageDictMR$CalcPackageDictMapper not found
31-01-2017 14:00:56 CST calc_package_dict ERROR - 	at org.apache.hadoop.conf.Configuration.getClass(Configuration.java:2195)
31-01-2017 14:00:56 CST calc_package_dict ERROR - 	at org.apache.hadoop.mapreduce.task.JobContextImpl.getMapperClass(JobContextImpl.java:186)
31-01-2017 14:00:56 CST calc_package_dict ERROR - 	at org.apache.hadoop.mapred.MapTask.runNewMapper(MapTask.java:754)
31-01-2017 14:00:56 CST calc_package_dict ERROR - 	at org.apache.hadoop.mapred.MapTask.run(MapTask.java:342)
31-01-2017 14:00:56 CST calc_package_dict ERROR - 	at org.apache.hadoop.mapred.YarnChild$2.run(YarnChild.java:164)
31-01-2017 14:00:56 CST calc_package_dict ERROR - 	at java.security.AccessController.doPrivileged(Native Method)
31-01-2017 14:00:56 CST calc_package_dict ERROR - 	at javax.security.auth.Subject.doAs(Subject.java:422)
31-01-2017 14:00:56 CST calc_package_dict ERROR - 	at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1657)
31-01-2017 14:00:56 CST calc_package_dict ERROR - 	at org.apache.hadoop.mapred.YarnChild.main(YarnChild.java:158)
31-01-2017 14:00:56 CST calc_package_dict ERROR - Caused by: java.lang.ClassNotFoundException: Class mobvista.dmp.datasource.gender.CalcPackageDictMR$CalcPackageDictMapper not found
31-01-2017 14:00:56 CST calc_package_dict ERROR - 	at org.apache.hadoop.conf.Configuration.getClassByName(Configuration.java:2101)
31-01-2017 14:00:56 CST calc_package_dict ERROR - 	at org.apache.hadoop.conf.Configuration.getClass(Configuration.java:2193)

hadoop运行报错，说是Map类找不到，但是我找了，源代码里有。