求助： 定时调度突然有两天显示快照失败，失败信息：
java.lang.RuntimeException: Can not update parent-folder!
at com.fr.fs.cache.decision.category.impl.memory.EntryCache.cache(Unknown Source)
at com.fr.fs.cache.decision.category.impl.memory.MemoryEntryExecutor.cache(Unknown Source)
at com.fr.schedule.output.ScheduledOutput.exportReportFiles(Unknown Source)
at com.fr.fs.schedule.job.ViewReportletJob.executeReportByUsername(Unknown Source)
at com.fr.fs.schedule.job.ViewReportletJob.executeScheduledOutput(Unknown Source)
at com.fr.fs.schedule.job.ViewReportletJob.executeReport(Unknown Source)
at com.fr.fs.schedule.job.ReportletJob.execute(Unknown Source)
at com.fr.third.org.quartz.core.JobRunShell.run(JobRunShell.java:202)
at com.fr.third.org.quartz.simpl.SimpleThreadPool$WorkerThread.run(SimpleThreadPool.java:525)
