kylin get error when run step 3

[Wangdp]

HI,

  Run Env: hadoop2.6.1，hive1.2.2，hbase1.0.3，kylin2.1.0 

  Descirbe: when cube run step 3,it can not continue forward,inside the hadoop 
log show :

    org.apache.hadoop.mapreduce.v2.app.MRAppMaster:Error starting MRAppMaster
    
java.lang.NoSuchMethodError:org.apache.hadoop.http.HttpConfig.setPolicy(Lorg/apache/hadoop/http/HttpConfig$Policy；)V

 May I ask what is the reason?

  



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