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    Expert tip

    Ant scp task has an attribute called trust. If set to false (default) the host you connect to has to be set in the knownhosts file (you might have to create it) Another way is to explicitly set "trust = true". Check the documentation:

Solutions on the web

via Stack Overflow by user2660558
, 1 year ago No route to host
via by Unknown author, 2 years ago No route to host
via by Unknown author, 2 years ago No route to host
via by Unknown author, 2 years ago No route to host
via Stack Overflow by Aditya
, 1 year ago
java.lang.IllegalArgumentException: protocol = socket host = null
via Stack Overflow by Vivek Vinodh
, 11 months ago Unable to resolve host "raspberrypi.local": No address associated with hostname
com.jcraft.jsch.JSchException: No route to host	at com.jcraft.jsch.Util.createSocket(	at com.jcraft.jsch.Session.connect(	at org.apache.hadoop.ha.SshFenceByTcpPort.tryFence(	at org.apache.hadoop.ha.NodeFencer.fence(	at org.apache.hadoop.ha.ZKFailoverController.doFence(	at org.apache.hadoop.ha.ZKFailoverController.fenceOldActive(	at org.apache.hadoop.ha.ZKFailoverController.access$1100(	at org.apache.hadoop.ha.ZKFailoverController$ElectorCallbacks.fenceOldActive(	at org.apache.hadoop.ha.ActiveStandbyElector.fenceOldActive(	at org.apache.hadoop.ha.ActiveStandbyElector.becomeActive(	at org.apache.hadoop.ha.ActiveStandbyElector.processResult(	at org.apache.zookeeper.ClientCnxn$EventThread.processEvent(	at org.apache.zookeeper.ClientCnxn$