Umbraco Lucene.Net.Index.MergePolicy.MergeException这是什么原因造成的？

我正在使用Umbraco，出于某种原因，突然出现Visual Studio JIT调试器弹出窗口，询问我是否要调试w3wp.exe并执行异常，我附加到它并发现以下异常，我找不到任何原因，因为我没有添加任何新内容

Lucene.Net.Index.MergePolicy.MergeException was unhandled
  Message=Exception of type 'Lucene.Net.Index.MergePolicy+MergeException' was thrown.
  Source=Lucene.Net
  StackTrace:
       at Lucene.Net.Index.ConcurrentMergeScheduler.HandleMergeException(Exception exc)
       at Lucene.Net.Index.ConcurrentMergeScheduler.MergeThread.Run()
       at System.Threading.ThreadHelper.ThreadStart_Context(Object state)
       at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean ignoreSyncCtx)
       at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state)
       at System.Threading.ThreadHelper.ThreadStart()
  InnerException: Lucene.Net.Index.CorruptIndexException
       Message=doc counts differ for segment _3qw: fieldsReader shows 1025 but segmentInfo shows 1
       Source=Lucene.Net
       StackTrace:
            at Lucene.Net.Index.IndexWriter.HandleMergeException(Exception t, OneMerge merge)
            at Lucene.Net.Index.IndexWriter.Merge(OneMerge merge)
            at Lucene.Net.Index.ConcurrentMergeScheduler.DoMerge(OneMerge merge)
            at Lucene.Net.Index.ConcurrentMergeScheduler.MergeThread.Run()
       InnerException: 

有没有人知道是什么原因造成的，或者如何修复

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谢谢

我从这个链接找到了答案：

邓菲在6个月前发布了此回复 刚刚经历了从一个位置到另一个位置的迁移。我删除了App_Data/TEMP/examiceIndexes的内容，在观看浏览器微调器一分钟左右（在重建Lucene缓存时）后，网站出现了