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From Itamar Syn-Hershko <>
Subject Compilation issues and gotchas
Date Thu, 10 Nov 2016 03:56:13 GMT
Our nuget/myget packages are released only for 4.5.1 and up. I think we
should release for as many platforms as we can - what do you think? Connie
is on the .NET team in Microsoft and might have insights on this.

In addition, I tried running a demo app ( with Project Rider
<> on Mac and got the following exception
when indexing. Shad - what do you think this is?

Unhandled Exception:
System.NullReferenceException: Object reference not set to an instance of
an object
  at Lucene.Net.Store.DataOutput.WriteString (System.String s) <0x51eb2d0 +
0x0006b> in <filename unknown>:0
  at Lucene.Net.Store.DataOutput.WriteStringStringMap (IDictionary`2 map)
<0x52998d0 + 0x000a7> in <filename unknown>:0
  at Lucene.Net.Codecs.Lucene46.Lucene46SegmentInfoWriter.Write
(Lucene.Net.Store.Directory dir, Lucene.Net.Index.SegmentInfo si,
Lucene.Net.Index.FieldInfos fis, Lucene.Net.Store.IOContext ioContext)
<0x52d9dc0 + 0x0011e> in <filename unknown>:0
  at Lucene.Net.Index.DocumentsWriterPerThread.SealFlushedSegment
(Lucene.Net.Index.FlushedSegment flushedSegment) <0x529ace0 + 0x0018e> in
<filename unknown>:0
  at Lucene.Net.Index.DocumentsWriterPerThread.Flush () <0x51f6940 +
0x00b47> in <filename unknown>:0
  at Lucene.Net.Index.DocumentsWriter.DoFlush
(Lucene.Net.Index.DocumentsWriterPerThread flushingDWPT) <0x51f4a58 +
0x00073> in <filename unknown>:0
  at Lucene.Net.Index.DocumentsWriter.FlushAllThreads
(Lucene.Net.Index.IndexWriter indexWriter) <0x51f3568 + 0x000b7> in
<filename unknown>:0
  at Lucene.Net.Index.IndexWriter.PrepareCommitInternal () <0x51f2f28 +
0x001e7> in <filename unknown>:0
  at Lucene.Net.Index.IndexWriter.CommitInternal () <0x51f2da8 + 0x000ef>
in <filename unknown>:0
  at Lucene.Net.Index.IndexWriter.Commit () <0x51f2d78 + 0x0001f> in
<filename unknown>:0
  at LuceneNetDemo.GitHubIndex+<IndexRepositories>c__async0.MoveNext ()
<0x358ce80 + 0x00427> in <filename unknown>:0

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