在Jenkins上配置ssh slave时,它在ec2实例上运行,当我点击“Launch Slave Agent”时,我收到以下错误消息.

[08/06/14 18:41:46] [SSH] Opening SSH connection to ec2-xx-xx-xx-xx.eu-west-1.compute.amazonaws.com:22.

[08/06/14 18:41:46] [SSH] Authentication successful.

[08/06/14 18:41:46] [SSH] The remote users environment is:

[08/06/14 18:41:46] [SSH] Starting sftp client.

[08/06/14 18:41:46] [SSH] SFTP failed. Copying via SCP.

[08/06/14 18:41:46] [SSH] Remote file system root /home//jenkins does not exist. Will try to create it...

Failed to create /home//jenkins

[08/06/14 18:41:46] [SSH] Copying latest slave.jar...

hudson.util.IOException2: Could not copy slave.jar into '/home//jenkins' on slave

at hudson.plugins.sshslaves.SSHLauncher.copySlaveJarUsingSCP(SSHLauncher.java:967)

at hudson.plugins.sshslaves.SSHLauncher.copySlaveJar(SSHLauncher.java:926)

at hudson.plugins.sshslaves.SSHLauncher.launch(SSHLauncher.java:596)

at hudson.slaves.SlaveComputer$1.call(SlaveComputer.java:228)

at java.util.concurrent.FutureTask.run(FutureTask.java:262)

at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)

at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)

at java.lang.Thread.run(Thread.java:744)

Caused by: java.io.IOException: Error during SCP transfer.

at com.trilead.ssh2.SCPClient.put(SCPClient.java:523)

at hudson.plugins.sshslaves.SSHLauncher.copySlaveJarUsingSCP(SSHLauncher.java:965)

... 7 more

Caused by: java.io.IOException: Remote scp terminated unexpectedly.

at com.trilead.ssh2.SCPClient.readResponse(SCPClient.java:50)

at com.trilead.ssh2.SCPClient.sendBytes(SCPClient.java:140)

at com.trilead.ssh2.SCPClient.put(SCPClient.java:519)

... 8 more

[08/06/14 18:41:46] [SSH] Connection closed.

此节点的Jenkins配置如下：

请注意我已经设置了JavaPath属性,因为Jenkins“无法弄清楚java的Java版本”(这是我得到的错误消息)

知道如何解决这个问题吗？谢谢