现在我正试图用Git插件从bitbucket中提取一个存储库，并在jenkins中构建它。然而，每当我这样做时，我都会得到：
FATAL: Could not checkout null with start point <Starting Point>
hudson.plugins.git.GitException: Could not checkout null with start point <Starting Point>
at org.jenkinsci.plugins.gitclient.CliGitAPIImpl.checkoutBranch(CliGitAPIImpl.java:894)
at hudson.plugins.git.GitSCM$4.invoke(GitSCM.java:1229)
at hudson.plugins.git.GitSCM$4.invoke(GitSCM.java:1205)
at hudson.FilePath.act(FilePath.java:906)
at hudson.FilePath.act(FilePath.java:879)
at hudson.plugins.git.GitSCM.checkout(GitSCM.java:1205)
at hudson.model.AbstractProject.checkout(AbstractProject.java:1394)
at hudson.model.AbstractBuild$AbstractBuildExecution.defaultCheckout(AbstractBuild.java:676)
at jenkins.scm.SCMCheckoutStrategy.checkout(SCMCheckoutStrategy.java:88)
at hudson.model.AbstractBuild$AbstractBuildExecution.run(AbstractBuild.java:581)
at hudson.model.Run.execute(Run.java:1593)
at hudson.model.FreeStyleBuild.run(FreeStyleBuild.java:46)
at hudson.model.ResourceController.execute(ResourceController.java:88)
at hudson.model.Executor.run(Executor.java:247)
Caused by: hudson.plugins.git.GitException: Command "git checkout -f <Starting Point>" returned status code 1:
stdout:
stderr: error: unable to unlink old <File> (Permission denied)
error: unable to unlink old <File> (Permission denied)
error: unable to unlink old <File> (Permission denied)
error: unable to unlink old <File> (Permission denied)
error: unable to create file <File> (Permission denied)
error: unable to unlink old <File> (Permission denied)
我尝试过在OSX中手动删除非jenkins用户下的文件，这是可行的，但之后将无法创建文件。
编辑：我实际上通过添加"执行shell命令"步骤并插入"Git pull"而不是使用Git插件来解决了这个问题。
需要定义起始点参数
试试这个：
git checkout -f HEAD