jenkins ssh launch windows 2012sever 提示：[SSH] The remote user's environment is: ERROR: null

[hup1221]

求助：
ubuntu 部署的jenkins master ssh launch 到windowns server2012时提示如下信息：
[08/09/24 17:29:03] [SSH] WARNING: SSH Host Keys are not being verified. Man-in-the-middle attacks may be possible against this connection.
[08/09/24 17:29:03] [SSH] Authentication successful.
[08/09/24 17:29:04] [SSH] The remote user's environment is:
ERROR: null
java.util.concurrent.CancellationException
at java.util.concurrent.FutureTask.report(FutureTask.java:121)
at java.util.concurrent.FutureTask.get(FutureTask.java:192)
at hudson.plugins.sshslaves.SSHLauncher.launch(SSHLauncher.java:475)
at hudson.slaves.SlaveComputer$1.call(SlaveComputer.java:294)
at jenkins.util.ContextResettingExecutorService$2.call(ContextResettingExecutorService.java:46)
at jenkins.security.ImpersonatingExecutorService$2.call(ImpersonatingExecutorService.java:71)
at java.util.concurrent.FutureTask.run(FutureTask.java:266)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
at java.lang.Thread.run(Thread.java:748)
[08/09/24 17:32:25] Launch failed - cleaning up connection
[08/09/24 17:32:25] [SSH] Connection closed.

我使用shell 命令行可以正常连接并且登录到windows powershell命令行，请问我需要怎么才能解决这个问题