What path did you enter as "remote file system root" when configuring the slave? Does that directory exist on the slave? Can you create the directory through ssh as the same user that runs Jenkins? What if you log in to the slave machine and try to create the directory, and make sure the permissions are given to the Jenkins user? Does that improve things?

Eric

On 10/31/2013 5:03 AM, Rajesh Kumar wrote:
What could be the possible solution for this error i am getting while adding 
Salve....
[10/31/13 01:56:57] [SSH] Checking java version of java
[10/31/13 01:56:58] [SSH] java -version returned 1.7.0_25.
[10/31/13 01:56:58] [SSH] Starting sftp client.
[10/31/13 01:56:58] [SSH] Remote file system root  does not exist. Will try to 
create it...
hudson.util.IOException2: Could not copy slave.jar into '' on slave
        at 
hudson.plugins.sshslaves.SSHLauncher.copySlaveJar(SSHLauncher.java:790)
        at hudson.plugins.sshslaves.SSHLauncher.launch(SSHLauncher.java:487)
        at hudson.slaves.SlaveComputer$1.call(SlaveComputer.java:230)
        at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:334)
        at java.util.concurrent.FutureTask.run(FutureTask.java:166)
        at 
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1146)
        at 
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
        at java.lang.Thread.run(Thread.java:679)
Caused by: hudson.util.IOException2: Failed to mkdir
        at hudson.plugins.sshslaves.SFTPClient.mkdirs(SFTPClient.java:85)
        at 
hudson.plugins.sshslaves.SSHLauncher.copySlaveJar(SSHLauncher.java:762)
        ... 7 more
Caused by: com.trilead.ssh2.SFTPException: No such file (SSH_FX_NO_SUCH_FILE: A 
reference was made to a file which does not exist.)
        at 
com.trilead.ssh2.SFTPv3Client.expectStatusOKMessage(SFTPv3Client.java:555)
        at com.trilead.ssh2.SFTPv3Client.mkdir(SFTPv3Client.java:955)
        at hudson.plugins.sshslaves.SFTPClient.mkdirs(SFTPClient.java:83)
        ... 8 more
[10/31/13 01:56:59] [SSH] Connection closed.
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