我一直在尝试备份我的jenkins机器并在新机器中恢复它。我把詹金斯家的目录复制到了新的Jenkins Home目录。我的所有工作都显示出来了，但是没有任何插件显示在已安装的选项卡下。这就是日志所说的：
SEVERE: Failed Inspecting plugin /var/lib/jenkins/plugins/._ace-editor.jpi
java.io.IOException: Failed to expand /var/lib/jenkins/plugins/._ace-editor.jpi
at hudson.ClassicPluginStrategy.explode(ClassicPluginStrategy.java:610)
at hudson.ClassicPluginStrategy.createPluginWrapper(ClassicPluginStrategy.java:174)
at hudson.PluginManager$1$3$1.run(PluginManager.java:394)
at org.jvnet.hudson.reactor.TaskGraphBuilder$TaskImpl.run(TaskGraphBuilder.java:169)
at org.jvnet.hudson.reactor.Reactor.runTask(Reactor.java:282)
at jenkins.model.Jenkins$7.runTask(Jenkins.java:999)
at org.jvnet.hudson.reactor.Reactor$2.run(Reactor.java:210)
at org.jvnet.hudson.reactor.Reactor$Node.run(Reactor.java:117)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
at java.lang.Thread.run(Thread.java:745)
Caused by: Error while expanding /var/lib/jenkins/plugins/._ace-editor.jpi
java.util.zip.ZipException: archive is not a ZIP archive
at org.apache.tools.ant.taskdefs.Expand.expandFile(Expand.java:192)
at org.apache.tools.ant.taskdefs.Expand.execute(Expand.java:132)
at hudson.ClassicPluginStrategy.unzipExceptClasses(ClassicPluginStrategy.java:682)
at hudson.ClassicPluginStrategy.explode(ClassicPluginStrategy.java:607)
... 10 more
Caused by: java.util.zip.ZipException: archive is not a ZIP archive
at org.apache.tools.zip.ZipFile.positionAtCentralDirectory(ZipFile.java:481)
at org.apache.tools.zip.ZipFile.populateFromCentralDirectory(ZipFile.java:320)
at org.apache.tools.zip.ZipFile.<init>(ZipFile.java:186)
at org.apache.tools.ant.taskdefs.Expand.expandFile(Expand.java:170)
... 13 more
Jun 22, 2017 1:38:04 PM jenkins.InitReactorRunner$1 onTaskFailed
SEVERE: Failed Inspecting plugin /var/lib/jenkins/plugins/ace-editor.jpi
java.util.zip.ZipException: error in opening zip file
at java.util.zip.ZipFile.open(Native Method)
at java.util.zip.ZipFile.<init>(ZipFile.java:215)
at java.util.zip.ZipFile.<init>(ZipFile.java:145)
at java.util.jar.JarFile.<init>(JarFile.java:154)
at java.util.jar.JarFile.<init>(JarFile.java:118)
at jenkins.util.AntClassLoader.addPathFile(AntClassLoader.java:502)
at hudson.ClassicPluginStrategy$AntClassLoader2.addPathFiles(ClassicPluginStrategy.java:845)
at hudson.ClassicPluginStrategy.createClassLoader(ClassicPluginStrategy.java:308)
at hudson.ClassicPluginStrategy.createPluginWrapper(ClassicPluginStrategy.java:248)
at hudson.PluginManager$1$3$1.run(PluginManager.java:394)
at org.jvnet.hudson.reactor.TaskGraphBuilder$TaskImpl.run(TaskGraphBuilder.java:169)
at org.jvnet.hudson.reactor.Reactor.runTask(Reactor.java:282)
at jenkins.model.Jenkins$7.runTask(Jenkins.java:999)
at org.jvnet.hudson.reactor.Reactor$2.run(Reactor.java:210)
at org.jvnet.hudson.reactor.Reactor$Node.run(Reactor.java:117)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
at java.lang.Thread.run(Thread.java:745)