Hudson配置git进行构建失败：Error cloning remote repo..报错

私有项目，https无权限，建议使用ssh方式。

PS：我喜欢这种提问风格，使用背景、方式、错误异常一目了然。

我们git不支持ip访问哦，hostname直接填写git.oschina.net    keyfile直接就是你生成的id_rsa.pub，不用写username和pw，有问题在这问也一样，我随时在线:)

按照您指导填写的。报错也没管它，可以继续保存。不过编译时仍然报错。我重启过hudson，仍然报错。

把其他的配置项也贴一下。

错误日志：

Started by user anonymous
Cleaning the workspace because project is configured to clean the workspace before each build.
Checkout:workspace / C:\Windows\System32\config\systemprofile\.hudson\jobs\Job1\workspace - hudson.remoting.LocalChannel@a4b67e
Using strategy: Default
Checkout:workspace / C:\Windows\System32\config\systemprofile\.hudson\jobs\Job1\workspace - hudson.remoting.LocalChannel@a4b67e
Cloning the remote Git repository
Cloning repository origin
ERROR: Error cloning remote repo 'origin' 
hudson.plugins.git.GitException: Could not clone git@git.oschina.net:yufeng217/GitTest.git
	at hudson.plugins.git.GitAPI.clone(GitAPI.java:255)
	at hudson.plugins.git.GitSCM$3.invoke(GitSCM.java:1063)
	at hudson.plugins.git.GitSCM$3.invoke(GitSCM.java:1008)
	at hudson.FilePath.act(FilePath.java:793)
	at hudson.FilePath.act(FilePath.java:775)
	at hudson.plugins.git.GitSCM.gerRevisionToBuild(GitSCM.java:1008)
	at hudson.plugins.git.GitSCM.checkout(GitSCM.java:777)
	at hudson.model.AbstractProject.checkout(AbstractProject.java:1550)
	at hudson.model.AbstractBuild$AbstractRunner.checkout(AbstractBuild.java:607)
	at hudson.model.AbstractBuild$AbstractRunner.run(AbstractBuild.java:518)
	at hudson.model.Run.run(Run.java:1493)
	at hudson.model.FreeStyleBuild.run(FreeStyleBuild.java:44)
	at hudson.model.ResourceController.execute(ResourceController.java:82)
	at hudson.model.Executor.run(Executor.java:137)
Caused by: hudson.plugins.git.GitException: org.eclipse.jgit.api.errors.TransportException: git@git.oschina.net:yufeng217/GitTest.git: UnknownHostKey: git.oschina.net. RSA key fingerprint is e3:ee:82:78:fb:c0:ca:24:65:69:ba:bc:47:24:6f:d4
	at hudson.plugins.git.GitAPI$1.invoke(GitAPI.java:248)
	at hudson.plugins.git.GitAPI$1.invoke(GitAPI.java:235)
	at hudson.FilePath.act(FilePath.java:793)
	at hudson.FilePath.act(FilePath.java:775)
	at hudson.plugins.git.GitAPI.clone(GitAPI.java:235)
	... 13 more
Caused by: org.eclipse.jgit.api.errors.TransportException: git@git.oschina.net:yufeng217/GitTest.git: UnknownHostKey: git.oschina.net. RSA key fingerprint is e3:ee:82:78:fb:c0:ca:24:65:69:ba:bc:47:24:6f:d4
	at org.eclipse.jgit.api.FetchCommand.call(FetchCommand.java:139)
	at org.eclipse.jgit.api.CloneCommand.fetch(CloneCommand.java:178)
	at org.eclipse.jgit.api.CloneCommand.call(CloneCommand.java:125)
	at hudson.plugins.git.GitAPI$1.invoke(GitAPI.java:242)
	... 17 more
Caused by: org.eclipse.jgit.errors.TransportException: git@git.oschina.net:yufeng217/GitTest.git: UnknownHostKey: git.oschina.net. RSA key fingerprint is e3:ee:82:78:fb:c0:ca:24:65:69:ba:bc:47:24:6f:d4
	at org.eclipse.jgit.transport.JschConfigSessionFactory.getSession(JschConfigSessionFactory.java:142)
	at org.eclipse.jgit.transport.SshTransport.getSession(SshTransport.java:121)
	at org.eclipse.jgit.transport.TransportGitSsh$SshFetchConnection.<init>(TransportGitSsh.java:248)
	at org.eclipse.jgit.transport.TransportGitSsh.openFetch(TransportGitSsh.java:147)
	at org.eclipse.jgit.transport.FetchProcess.executeImp(FetchProcess.java:136)
	at org.eclipse.jgit.transport.FetchProcess.execute(FetchProcess.java:122)
	at org.eclipse.jgit.transport.Transport.fetch(Transport.java:1111)
	at org.eclipse.jgit.api.FetchCommand.call(FetchCommand.java:130)
	... 20 more
Caused by: com.jcraft.jsch.JSchException: UnknownHostKey: git.oschina.net. RSA key fingerprint is e3:ee:82:78:fb:c0:ca:24:65:69:ba:bc:47:24:6f:d4
	at com.jcraft.jsch.Session.checkHost(Session.java:786)
	at com.jcraft.jsch.Session.connect(Session.java:342)
	at org.eclipse.jgit.transport.JschConfigSessionFactory.getSession(JschConfigSessionFactory.java:116)
	... 27 more
Trying next repository
FATAL: Could not clone repository
hudson.plugins.git.GitException: Could not clone repository
	at hudson.plugins.git.GitSCM$3.invoke(GitSCM.java:1074)
	at hudson.plugins.git.GitSCM$3.invoke(GitSCM.java:1008)
	at hudson.FilePath.act(FilePath.java:793)
	at hudson.FilePath.act(FilePath.java:775)
	at hudson.plugins.git.GitSCM.gerRevisionToBuild(GitSCM.java:1008)
	at hudson.plugins.git.GitSCM.checkout(GitSCM.java:777)
	at hudson.model.AbstractProject.checkout(AbstractProject.java:1550)
	at hudson.model.AbstractBuild$AbstractRunner.checkout(AbstractBuild.java:607)
	at hudson.model.AbstractBuild$AbstractRunner.run(AbstractBuild.java:518)
	at hudson.model.Run.run(Run.java:1493)
	at hudson.model.FreeStyleBuild.run(FreeStyleBuild.java:44)
	at hudson.model.ResourceController.execute(ResourceController.java:82)
	at hudson.model.Executor.run(Executor.java:137)

这步是之前是做过的。

这次我将~/.ssh/known_hosts 文件删了。又做了一次信任。又clone一次，验证在我机器上是好使的。再执行hudson构建，仍然报同样的错误。

注：hudson也是在我机器上。

我也遇到了同样的问题，ssh key均配置正常 本机通过git都能够正在连接；通过window命令行启动tomcat 没有问题代码可以从git服务器上下载；但只要配置以服务模式启动就提示类似 “com.jcraft.jsch.JSchException: UnknownHostKey:”这样的错误。

恳求指点一二。在此先谢过各位。