Xamarin Android: System.IO.Compression.ZipFile.ExtractToDirectory Error en el modo de liberación

Todo funciona bien en modo de depuración, pero cuando lo ejecutamos en el lanzamiento de la llamada ExtractToDirectory falla.

Aquí está la función de referencia. Sólo para asegurarnos de que no estamos haciendo nada raro.

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private bool UnzipFiles() { bool toReturn = true; try { UpdateStatus("Almost done..."); string file = Path.Combine (DownloadFolder, "ZipFile.zip"); if(System.IO.Directory.Exists(UnzippingDestinationFolder)) { System.IO.Directory.Delete(UnzippingDestinationFolder, recursive:true); } System.IO.Compression.ZipFile.ExtractToDirectory(file, UnzippingDestinationFolder); UpdateStatus("Finished!"); var files = System.IO.Directory.GetFiles(UnzippingDestinationFolder); int m = 3; } catch (Exception e) { toReturn = false; } 

Finalmente, aquí está la excepción que tenemos.

 System.NullReferenceException: Object reference not set to an instance of an object at SharpCompress.Common.Zip.Headers.ZipFileEntry.DecodeString (System.Byte[] str) [0x00000] in <filename unknown>:0 at SharpCompress.Common.Zip.Headers.DirectoryEntryHeader.Read (System.IO.BinaryReader reader) [0x00000] in <filename unknown>:0 at SharpCompress.Common.Zip.ZipHeaderFactory.ReadHeader (UInt32 headerBytes, System.IO.BinaryReader reader) [0x00000] in <filename unknown>:0 at SharpCompress.Common.Zip.SeekableZipHeaderFactory+<ReadSeekableHeader>c__Iterator0.MoveNext () [0x00000] in <filename unknown>:0 at SharpCompress.Archive.Zip.ZipArchive+<LoadEntries>c__Iterator0.MoveNext () [0x00000] in <filename unknown>:0 at SharpCompress.LazyReadOnlyCollection`1+LazyLoader[SharpCompress.Archive.Zip.ZipArchiveEntry].MoveNext () [0x00000] in <filename unknown>:0 at System.IO.Compression.ZipArchive.CreateZip (System.IO.Stream stream, ZipArchiveMode mode) [0x00000] in <filename unknown>:0 at System.IO.Compression.ZipArchive..ctor (System.IO.Stream stream, ZipArchiveMode mode, Boolean leaveOpen, System.Text.Encoding entryNameEncoding) [0x00000] in <filename unknown>:0 at System.IO.Compression.ZipFile.Open (System.String archiveFileName, ZipArchiveMode mode, System.Text.Encoding entryNameEncoding) [0x00000] in <filename unknown>:0 at System.IO.Compression.ZipFile.ExtractToDirectory (System.String sourceArchiveFileName, System.String destinationDirectoryName, System.Text.Encoding entryNameEncoding) [0x00000] in <filename unknown>:0 at System.IO.Compression.ZipFile.ExtractToDirectory (System.String sourceArchiveFileName, System.String destinationDirectoryName) [0x00000] in <filename unknown>:0 at NewBaron.Screens.DownloadContentScreen.UnzipFiles () [0x00000] in <filename unknown>:0