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在jenkins配置git，如下：

配置好之后，点击立即构建，等了很久出现如下错误：

ERROR: Error fetching remote repo 'origin'
hudson.plugins.git.GitException: Failed to fetch from liyuanhong@localhost:/Users/liyuanhong/project/git_repro/crashTest.git
	at hudson.plugins.git.GitSCM.fetchFrom(GitSCM.java:806)
	at hudson.plugins.git.GitSCM.retrieveChanges(GitSCM.java:1070)
	at hudson.plugins.git.GitSCM.checkout(GitSCM.java:1101)
	at hudson.scm.SCM.checkout(SCM.java:495)
	at hudson.model.AbstractProject.checkout(AbstractProject.java:1278)
	at hudson.model.AbstractBuild$AbstractBuildExecution.defaultCheckout(AbstractBuild.java:604)
	at jenkins.scm.SCMCheckoutStrategy.checkout(SCMCheckoutStrategy.java:86)
	at hudson.model.AbstractBuild$AbstractBuildExecution.run(AbstractBuild.java:529)
	at hudson.model.Run.execute(Run.java:1728)
	at hudson.model.FreeStyleBuild.run(FreeStyleBuild.java:43)
	at hudson.model.ResourceController.execute(ResourceController.java:98)
	at hudson.model.Executor.run(Executor.java:404)
Caused by: hudson.plugins.git.GitException: Command "git fetch --tags --progress liyuanhong@localhost:/Users/liyuanhong/project/git_repro/crashTest.git +refs/heads/*:refs/remotes/origin/*" returned status code 128:
stdout: 
stderr: Permission denied, please try again.
packet_write_wait: Connection to ::1 port 22: Broken pipe
fatal: Could not read from remote repository.

Please make sure you have the correct access rights
and the repository exists.

	at org.jenkinsci.plugins.gitclient.CliGitAPIImpl.launchCommandIn(CliGitAPIImpl.java:1793)
	at org.jenkinsci.plugins.gitclient.CliGitAPIImpl.launchCommandWithCredentials(CliGitAPIImpl.java:1519)
	at org.jenkinsci.plugins.gitclient.CliGitAPIImpl.access$300(CliGitAPIImpl.java:64)
	at org.jenkinsci.plugins.gitclient.CliGitAPIImpl$1.execute(CliGitAPIImpl.java:315)
	at hudson.plugins.git.GitSCM.fetchFrom(GitSCM.java:804)
	... 11 more
ERROR: null
Finished: FAILURE

后来发现在启动jenkins的终端里面出现如下信息：

Enter passphrase for key ‘/var/folders/vy/9r15p_192llf0sp092b3dzxw0000gn/T/ssh8620142580683014197key’: Enter passphrase for key ‘/var/folders/vy/9r15p_192llf0sp092b3dzxw0000gn/T/ssh8348919029967460681key’: Enter passphrase for key ‘/var/folders/vy/9r15p_192llf0sp092b3dzxw0000gn/T/ssh8676457670984005808key’:

解决方法，进入用户主目录的里的 .ssh 目录，新建一个authorized_keys 文件；把jenkins配置用户的公钥粘贴进去，再次点击构建，构建成功