Received : 2007/09/13 21:34:50
Message : I had my working for the most part, but it had occasionally been throwing a cast error. Your representative stated there was a fix for this in the latest release. So I went and downloaded Pdf.Kit 2.6.0.0 and now I can't get any filestream arrays to concatinate. Everytime the code runs, the Concatinate method throws an "Object reference not set to an instance of an object." error. The problem is that BOTH args going into the Concatinate method ARE objects (an array of 2 filestreams, and an output file stream.) The only other object that could fail would be the pdfEditor itself, and here's the call I used to create it...
PdfFileEditor pdfEditor = new PdfFileEditor();
that is right from your documentation!

Right after that line, I hover over (VS 2005) the pdfEditor variable, and this is what I see..

x682935b2be2ef7d8 = null

So evidently the PDF header is null and throwing the error?  I saw a posting very similar to this the other day in this forum...

http://www.aspose.com/Community/forums/thread/68143.aspx

What's going on?

 

Here's code to reproduce error..

FileStream pdf1 = new FileStream(@"C:\1.pdf", FileMode.Open);

FileStream pdf2 = new FileStream(@"C:\2.pdf", FileMode.Open);

Stream[] pdfStreams = new Stream[] { pdf1, pdf2 };

FileStream outputPDF = new FileStream(@"C:\Help_AsposeTeam.pdf", FileMode.Create);

PdfFileEditor pdfEditor = new PdfFileEditor();

pdfEditor.Concatenate(pdfStreams, outputPDF);

outputPDF.Close();

Please assit. Kyle

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This message was posted using Aspose.Live 2 Forum

Hi,

Can you please attach some of the pdf for testing purpose so that we can more accurately determine the cause of the problem.

Thanks.

Hi, Kyle

We can not reproduce your error, could you please attach your pdf for our testing?

Thanks.

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Georgie Yuan
Lead Developer
Aspose Changsha Team
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Here is on of two files that I have been testing with.  I guees I have to make another post for the other one because it doesn't appear that I can attch two files at once.

and here's the second file...

Hi,

I have tested your code with thte files that you provided and was able to reproduce the error. This has been recorded as a bug and assigned the number PDFKITNET-3743. We will try our best to resolve this issue as soon as possible.

Thanks.

What is the status of this bug fix (PDFKITNET-3743)?

Hi,

we will fix this bug in this weekend.

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Allen Wen
Developer
Aspose Changsha Team

Great!  I look forward to it!

Allen Wen (SeaWolf),

Has the fix been released?  Where/what do I need to do go in order to get the fix?

Kyle

Hi kyle,

we have fix this bug, but the new version has not been released, it will be released with three days.

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Allen Wen
Developer
Aspose Changsha Team

We have published hotfix 2.6.1. But this fix is not included in 2.6.1. We will soon provide a new dll for you to test.

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Tommy Wang
Lead Developer
Aspose Changsha Team
About Us
Contact Us

Hi Kyle,

now you can download the new dll (seeing the attachment)to test, if you have any questions,please inform me.

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Allen Wen
Developer
Aspose Changsha Team

*Ugh*

Okay, with the new Aspose.Pdf.Kit 2.6.1.0 I pulled down today, I am STILL getting the following error...

Unable to cast object of type 'xeb116a323308e2f7.xacd3aca1cf90fb28' to type 'xeb116a323308e2f7.xe3033695b7f6d53d'.
Stack Track:    at Aspose.Pdf.Kit.PdfFileEditor.Concatenate(Stream[] inputStreams, Stream outputStream)
   at Fluor.DDMEmailRetrievalProcess.DominoAccess.ConcatinatePDFs()
   at Fluor.DDMEmailRetrievalProcess.DominoAccess.ProcessDominoEmails()"

I don't get this on every document, but enough to make it an issue.  This casting error was the original reason I pulled Aspose.Pdf.Kit 2.6.0.0 - because one of the Aspose.Pdf.Kit techs said it contained a fix for the casting error.  As the story goes, after I installed 2.6.0.0 is when I started receiving the  "Object reference not set to an instance of an object." error that started this thread.  I don't seem to be getting THAT error any more, but I am back at square one with the casting error! 

Please assist quickly...I like your products, but my client is becoming very skeptical of my recommendation to go with Aspose.Pdf.Kit

Regards,

Kyle Peters

Hi,

Can you provide some sample documents that can lead to error, it help us to test the problem.

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Allen Wen
Developer
Aspose Changsha Team