KeeperErrorCode = ConnectionLoss for /hbase/master

Hi, I am running InjectorJob by tutorial https://wiki.apache.org/nutch/RunNutchInEclipse, But i receive as follows: 2015-07-07 22:33:38,269 ERROR zookeeper.ZooKeeperWatcher - hconnection Received unexpected KeeperException, re-throwing exception org.apache.zookeeper.KeeperException$ConnectionLoss

Run nutch 2.x in eclipse

Hello I have just begin study nutch, And I try run nutch 2.x in eclipse by tutorial https://wiki.apache.org/nutch/RunNutchInEclipse But when run InjectorJob then i have a exeption as follows: 2015-07-03 00:42:18,532 ERROR crawl.InjectorJob (InjectorJob.java:run(278)) - InjectorJob: java.lang.Clas