运行jenkins作业时，控制台将报告以下错误：

java.nio.file.DirectoryNotEmptyException: C:\jenkins\jobs\My Job\lastSuccessful
    at sun.nio.fs.WindowsFileSystemProvider.implDelete(Unknown Source)
    at sun.nio.fs.AbstractFileSystemProvider.deleteIfExists(Unknown Source)
    at java.nio.file.Files.deleteIfExists(Unknown Source)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at hudson.Util.createSymlinkJava7(Util.java:1194)
    at hudson.Util.createSymlink(Util.java:1112)
    at hudson.model.Run.createSymlink(Run.java:1846)
    at hudson.model.Run.updateSymlinks(Run.java:1827)
    at hudson.model.Run.execute(Run.java:1738)
    at hudson.model.FreeStyleBuild.run(FreeStyleBuild.java:43)
    at hudson.model.ResourceController.execute(ResourceController.java:89)
    at hudson.model.Executor.run(Executor.java:240)
ln builds\lastStableBuild C:\jenkins\jobs\My Job\lastStable failed
java.nio.file.DirectoryNotEmptyException: C:\jenkins\jobs\My Job\lastStable
    at sun.nio.fs.WindowsFileSystemProvider.implDelete(Unknown Source)
    at sun.nio.fs.AbstractFileSystemProvider.deleteIfExists(Unknown Source)
    at java.nio.file.Files.deleteIfExists(Unknown Source)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at hudson.Util.createSymlinkJava7(Util.java:1194)
    at hudson.Util.createSymlink(Util.java:1112)
    at hudson.model.Run.createSymlink(Run.java:1846)
    at hudson.model.Run.updateSymlinks(Run.java:1828)
    at hudson.model.Run.execute(Run.java:1738)
    at hudson.model.FreeStyleBuild.run(FreeStyleBuild.java:43)
    at hudson.model.ResourceController.execute(ResourceController.java:89)
    at hudson.model.Executor.run(Executor.java:240)

这是错误还是我需要修复的东西？