DynamicDotNetTWAIN.dll中出现未处理的“System.StackOverflowException”类型异常

Question

我在Asp.Net MVC web项目中实现了Dynamic Dot Net Twain OCR功能，当我将OCRResultformat作为PDFPlainText提供输出时，当我将OCRResultFormat作为PDFImageOverText时，它会抛出异常

  

“类型'System.StackOverflowException'的未处理异常   发生在DynamicDotNetTWAIN.dll“........

任何帮助都将受到高度赞赏。 我的代码如下。

 DynamicDotNetTwain dynamicDotNetTwain1 = new DynamicDotNetTwain();
      dynamicDotNetTwain1.LicenseKeys = "A3EDADA92DCE76E49D628E3AE59AC978;A3EDADA92DCE76E447421F637B0A5E35";
      dynamicDotNetTwain1.IfThrowException = true; 
      string TessDataPath = @"E:\metsi\E-archive source\Source\Source\EArchive.Web\Redistributable\Resources\";
      dynamicDotNetTwain1.OCRTessDataPath = TessDataPath;
      dynamicDotNetTwain1.OCRLanguage = "eng";
      dynamicDotNetTwain1.OCRResultFormat = (Dynamsoft.DotNet.TWAIN.OCR.ResultFormat)2;
      string strDllPath = @"E:\metsi\E-archive source\Source\Source\EArchive.Web\Redistributable\Resources\OCR\";
      dynamicDotNetTwain1.OCRDllPath = strDllPath;
      //string[] source = new string[] { @"E:\metsi\E-archive source\Source\Source\EArchive.Web\Documents\0606dbbd-3d24-44b4-8700-17ece39f873e.tif" };
      dynamicDotNetTwain1.LoadImage(sourcePath);
      //short a= dynamicDotNetTwain1.CurrentImageIndexInBuffer;
      if (dynamicDotNetTwain1.CurrentImageIndexInBuffer < 0)
      {
          return false;
      }
      //int bottom = dynamicDotNetTwain1.GetImage(dynamicDotNetTwain1.CurrentImageIndexInBuffer).Height;
      //int left = 0;
      //int right = dynamicDotNetTwain1.GetImage(dynamicDotNetTwain1.CurrentImageIndexInBuffer).Width;
      //int top = 0;
      //IndexList index = new IndexList();
      //index.Add(0);
      byte[] sbytes = null;
      sbytes = dynamicDotNetTwain1.OCR(dynamicDotNetTwain1.CurrentSelectedImageIndicesInBuffer);

      if (sbytes != null && sbytes.Length > 0)
      {
         System.IO.File.WriteAllBytes(destinationPath, sbytes);
      }
      else
      {
          System.IO.File.WriteAllBytes(destinationPath, null);
      }
      return true;
     }