title: Kafka to zookeeper command produces error
body: <pre><code>bin/kafka-topics.sh --create --topic activityTopic --zookeeper localhost:2181/kafka --partitions 1 --replication-factor 1
  </code></pre>
  
  <p>The above command from kafka produces an error</p>
  
  <pre><code>Error while executing topic command   org.apache.zookeeper.KeeperException$NoNodeException: KeeperErrorCode =  NoNode for /brokers/ids
   org.I0Itec.zkclient.exception.ZkNoNodeException: org.apache.zookeeper.KeeperException$NoNodeException: KeeperErrorCode =   NoNode for /brokers/ids
  at org.I0Itec.zkclient.exception.ZkException.create(ZkException.java:47)
  at org.I0Itec.zkclient.ZkClient.retryUntilConnected(ZkClient.java:685)
  at org.I0Itec.zkclient.ZkClient.getChildren(ZkClient.java:413)
  at org.I0Itec.zkclient.ZkClient.getChildren(ZkClient.java:409)
  at kafka.utils.ZkUtils$.getChildren(ZkUtils.scala:462)
  at kafka.utils.ZkUtils$.getSortedBrokerList(ZkUtils.scala:78)
  at kafka.admin.AdminUtils$.createTopic(AdminUtils.scala:170)
  at kafka.admin.TopicCommand$.createTopic(TopicCommand.scala:93)
  at kafka.admin.TopicCommand$.main(TopicCommand.scala:55)
  at kafka.admin.TopicCommand.main(TopicCommand.scala)
  Caused by: org.apache.zookeeper.KeeperException$NoNodeException: KeeperErrorCode = NoNode for /brokers/ids
  at org.apache.zookeeper.KeeperException.create(KeeperException.java:111)
  at org.apache.zookeeper.KeeperException.create(KeeperException.java:51)
  at org.apache.zookeeper.ZooKeeper.getChildren(ZooKeeper.java:1472)
  at org.apache.zookeeper.ZooKeeper.getChildren(ZooKeeper.java:1500)
  at org.I0Itec.zkclient.ZkConnection.getChildren(ZkConnection.java:99)
  at org.I0Itec.zkclient.ZkClient$2.call(ZkClient.java:416)
  at org.I0Itec.zkclient.ZkClient$2.call(ZkClient.java:413)
  at org.I0Itec.zkclient.ZkClient.retryUntilConnected(ZkClient.java:675)
  </code></pre>
  
  <p>Any idea?</p>