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We have created a custom Itembuket_community and rebuliding the index. while Rebuilding the index, getting follwoing error

Job started: Index_Update_IndexName=sitecore_Community_index|#Exception: System.Reflection.TargetInvocationException: Exception has been thrown by the target of an invocation. ---> SolrNet.Exceptions.SolrConnectionException: 

4000Document is missing mandatory uniqueKey field: id400

 ---> System.Net.WebException: The remote server returned an error: (400) Bad Request.
   at System.Net.HttpWebRequest.GetResponse()
   at HttpWebAdapters.Adapters.HttpWebRequestAdapter.GetResponse()
   at SolrNet.Impl.SolrConnection.GetResponse(IHttpWebRequest request)
   at SolrNet.Impl.SolrConnection.PostStream(String relativeUrl, String contentType, Stream content, IEnumerable`1 parameters)
   --- End of inner exception stack trace ---
   at SolrNet.Impl.SolrConnection.PostStream(String relativeUrl, String contentType, Stream content, IEnumerable`1 parameters)
   at SolrNet.Impl.SolrConnection.Post(String relativeUrl, String s)
   at SolrNet.Impl.SolrBasicServer`1.SendAndParseHeader(ISolrCommand cmd)
   at Sitecore.ContentSearch.SolrProvider.SolrBatchUpdateContext.AddRange(IEnumerable`1 group, Int32 groupSize)
   at Sitecore.ContentSearch.SolrProvider.SolrBatchUpdateContext.Commit()
   at Sitecore.ContentSearch.SolrProvider.SolrSearchIndex.PerformRebuild(Boolean resetIndex, Boolean optimizeOnComplete, IndexingOptions indexingOptions, CancellationToken cancellationToken)
   at Sitecore.ContentSearch.SolrProvider.SolrSearchIndex.Rebuild(Boolean resetIndex, Boolean optimizeOnComplete)
   --- End of inner exception stack trace ---
   at System.RuntimeMethodHandle.InvokeMethod(Object target, Object[] arguments, Signature sig, Boolean constructor)
   at System.Reflection.RuntimeMethodInfo.UnsafeInvokeInternal(Object obj, Object[] parameters, Object[] arguments)
   at System.Reflection.RuntimeMethodInfo.Invoke(Object obj, BindingFlags invokeAttr, Binder binder, Object[] parameters, CultureInfo culture)
   at Sitecore.Reflection.ReflectionUtil.InvokeMethod(MethodInfo method, Object[] parameters, Object obj)
   at Sitecore.Jobs.JobRunner.RunMethod(JobArgs args)
   at (Object , Object[] )
   at Sitecore.Pipelines.CorePipeline.Run(PipelineArgs args)
   at Sitecore.Pipelines.DefaultCorePipelineManager.Run(String pipelineName, PipelineArgs args, String pipelineDomain)
   at Sitecore.Jobs.Job.ThreadEntry(Object state)

Due to this not able to complete the index and search is not working. Please suggest.

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  • Which version of Sitecore?
    – Mark Cassidy
    Mar 19, 2018 at 15:49
  • Sitecore version 8.2. Mar 19, 2018 at 16:05
  • Can’t have an upper case character in index name. Make the index lower case. That’s at least part of your problem.
    – jrap
    Mar 19, 2018 at 23:59
  • See this question with my answer - sitecore.stackexchange.com/q/7956/556
    – jrap
    Mar 20, 2018 at 0:00
  • I had converted the index name to lower case but this is had not resolved the issue. The error we are getting in SOLR server logging is as org.apache.solr.common.SolrException: Document is missing mandatory uniqueKey field: id. While in Web server error log, only index name changed to lower case, else it remains the same. Mar 20, 2018 at 4:46

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