提交mapreduce的job时，报错如下 求人指导一下 谢谢

[kinghadoop@public ~]$ hadoop jar WordCountSum.jar com.nju.wcount.WCRunner /home/kinghadoop/qingshu.txt /home/kinghadoop/output1 16/04/24 22:42:44 INFO client.RMProxy: Connecting to ResourceManager at public/192.168.37.250:8032 16/04/24 22:42:45 WA ...