Document conversion application deployment on Azure in .NET

GroupDocs.Conversion Product Family
1

Hi,

I am facing a strange scenario with GroupDocs.Conversion. Every now and then, when we redeploy our solution to Azure Function, there is a 1 in 10 chance that it will start throwing exceptions. We have tried two different versions but the problem is there in both. I have added some sample exceptions below. These exceptions go away when we re-deploy our solution, but we are getting tired of having to keep an eye out for this.

Platform: Azure Functions - Queue Trigger .NET Framework 4.6
Versions Tested: GroupDocs.Conversion 19.1.0.0 and 18.5.0.0
Libraries referenced by the solution:
Aspose.Words 19.2.0
Aspose.Pdf 19.2.0
GroupDocs.Conversion 19.1.0

Since we have used both GroupDocs.Conversion and Aspose.Pdf/Aspose.Words in the same project, could this be a type/assembly version conflict? Please help!

Regards,
Zeeshan

==================
Exception 1

Could not load type ‘Aspose.Pdf.Document’ from assembly ‘Aspose.PDF, Version=18.4.0.0, Culture=neutral, PublicKeyToken=716fcc553a201e56’.

System.TypeLoadException: at . (GroupDocs.Conversion, Version=18.5.0.0, Culture=neutral, PublicKeyToken=716fcc553a201e56) at . (GroupDocs.Conversion, Version=18.5.0.0, Culture=neutral, PublicKeyToken=716fcc553a201e56) at . (GroupDocs.Conversion, Version=18.5.0.0, Culture=neutral, PublicKeyToken=716fcc553a201e56) at . (GroupDocs.Conversion, Version=18.5.0.0, Culture=neutral, PublicKeyToken=716fcc553a201e56) at . (GroupDocs.Conversion, Version=18.5.0.0, Culture=neutral, PublicKeyToken=716fcc553a201e56) at undefined (GroupDocs.Conversion, Version=18.5.0.0, Culture=neutral, PublicKeyToken=716fcc553a201e56) at . (GroupDocs.Conversion, Version=18.5.0.0, Culture=neutral, PublicKeyToken=716fcc553a201e56) at . (GroupDocs.Conversion, Version=18.5.0.0, Culture=neutral, PublicKeyToken=716fcc553a201e56) at GroupDocs.Conversion.Handler.ConversionHandler. (GroupDocs.Conversion, Version=18.5.0.0, Culture=neutral, PublicKeyToken=716fcc553a201e56) at GroupDocs.Conversion.Handler.ConversionHandler.Convert (GroupDocs.Conversion, Version=18.5.0.0, Culture=neutral, PublicKeyToken=716fcc553a201e56) at BoardPro.Functions.Pdf.Business.Conversion.DocumentToPdfProvider.ConvertToPdfDocument (BoardPro.Functions.Pdf.Business, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null) at BoardPro.Functions.Pdf.Business.Conversion.DocumentToPdfProvider.LoadPdfFromDocument (BoardPro.Functions.Pdf.Business, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null) at BoardPro.Functions.Pdf.Business.Conversion.PdfConversionHandler.ConvertToPdfFile (BoardPro.Functions.Pdf.Business, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null)

==================
Exception 2

Bad IL range. Bad IL range.

Aspose.Slides.PptxReadException: at Aspose.Slides. . (Aspose.Slides, Version=18.12.0.0, Culture=neutral, PublicKeyToken=716fcc553a201e56) at Aspose.Slides.Presentation. (Aspose.Slides, Version=18.12.0.0, Culture=neutral, PublicKeyToken=716fcc553a201e56) at Aspose.Slides.Presentation. (Aspose.Slides, Version=18.12.0.0, Culture=neutral, PublicKeyToken=716fcc553a201e56) at Aspose.Slides.Presentation. (Aspose.Slides, Version=18.12.0.0, Culture=neutral, PublicKeyToken=716fcc553a201e56) at Aspose.Slides.Presentation…ctor (Aspose.Slides, Version=18.12.0.0, Culture=neutral, PublicKeyToken=716fcc553a201e56) at . (GroupDocs.Conversion, Version=19.1.0.0, Culture=neutral, PublicKeyToken=716fcc553a201e56) at . (GroupDocs.Conversion, Version=19.1.0.0, Culture=neutral, PublicKeyToken=716fcc553a201e56) at . (GroupDocs.Conversion, Version=19.1.0.0, Culture=neutral, PublicKeyToken=716fcc553a201e56) at . (GroupDocs.Conversion, Version=19.1.0.0, Culture=neutral, PublicKeyToken=716fcc553a201e56) at GroupDocs.Conversion.Handler.ConversionHandler.Convert (GroupDocs.Conversion, Version=19.1.0.0, Culture=neutral, PublicKeyToken=716fcc553a201e56) at BoardPro.Functions.Pdf.Business.Conversion.DocumentToPdfProvider.ConvertToPdfDocument (BoardPro.Functions.Pdf.Business, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null) at BoardPro.Functions.Pdf.Business.Conversion.DocumentToPdfProvider.LoadPdfFromDocument (BoardPro.Functions.Pdf.Business, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null) at BoardPro.Functions.Pdf.Business.Conversion.PdfConversionHandler.ConvertToPdfFile (BoardPro.Functions.Pdf.Business, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null) Inner exception System.BadImageFormatException handled at Aspose.Slides. .: at Aspose.Slides. ​ . (Aspose.Slides, Version=18.12.0.0, Culture=neutral, PublicKeyToken=716fcc553a201e56) at Aspose.Slides.​ . (Aspose.Slides, Version=18.12.0.0, Culture=neutral, PublicKeyToken=716fcc553a201e56) at Aspose.Slides.​ .83ugfqaran7zgs2qub4m6eltqdmbhmlf (Aspose.Slides, Version=18.12.0.0, Culture=neutral, PublicKeyToken=716fcc553a201e56) at Aspose.Slides. .83ugfqaran7zgs2qub4m6eltqdmbhmlf (Aspose.Slides, Version=18.12.0.0, Culture=neutral, PublicKeyToken=716fcc553a201e56) at Aspose.Slides. .83ugfqaran7zgs2qub4m6eltqdmbhmlf (Aspose.Slides, Version=18.12.0.0, Culture=neutral, PublicKeyToken=716fcc553a201e56) at Aspose.Slides. .83ugfqaran7zgs2qub4m6eltqdmbhmlf (Aspose.Slides, Version=18.12.0.0, Culture=neutral, PublicKeyToken=716fcc553a201e56) at Aspose.Slides. .83ugfqaran7zgs2qub4m6eltqdmbhmlf (Aspose.Slides, Version=18.12.0.0, Culture=neutral, PublicKeyToken=716fcc553a201e56) at Aspose.Slides. .83ugfqaran7zgs2qub4m6eltqdmbhmlf (Aspose.Slides, Version=18.12.0.0, Culture=neutral, PublicKeyToken=716fcc553a201e56) at Aspose.Slides. .83ugfqaran7zgs2qub4m6eltqdmbhmlf (Aspose.Slides, Version=18.12.0.0, Culture=neutral, PublicKeyToken=716fcc553a201e56) at Aspose.Slides. .83ugfqaran7zgs2qub4m6eltqdmbhmlf (Aspose.Slides, Version=18.12.0.0, Culture=neutral, PublicKeyToken=716fcc553a201e56) at Aspose.Slides. .83ugfqaran7zgs2qub4m6eltqdmbhmlf (Aspose.Slides, Version=18.12.0.0, Culture=neutral, PublicKeyToken=716fcc553a201e56) at Aspose.Slides. .83ugfqaran7zgs2qub4m6eltqdmbhmlf (Aspose.Slides, Version=18.12.0.0, Culture=neutral, PublicKeyToken=716fcc553a201e56) at Aspose.Slides. .83ugfqaran7zgs2qub4m6eltqdmbhmlf (Aspose.Slides, Version=18.12.0.0, Culture=neutral, PublicKeyToken=716fcc553a201e56) at Aspose.Slides. .83ugfqaran7zgs2qub4m6eltqdmbhmlf (Aspose.Slides, Version=18.12.0.0, Culture=neutral, PublicKeyToken=716fcc553a201e56) at Aspose.Slides. ​ .83ugfqaran7zgs2qub4m6eltqdmbhmlf (Aspose.Slides, Version=18.12.0.0, Culture=neutral, PublicKeyToken=716fcc553a201e56) at Aspose.Slides. . (Aspose.Slides, Version=18.12.0.0, Culture=neutral, PublicKeyToken=716fcc553a201e56) at Aspose.Slides.​ . (Aspose.Slides, Version=18.12.0.0, Culture=neutral, PublicKeyToken=716fcc553a201e56) at Aspose.Slides. . (Aspose.Slides, Version=18.12.0.0, Culture=neutral, PublicKeyToken=716fcc553a201e56) at Aspose.Slides. . (Aspose.Slides, Version=18.12.0.0, Culture=neutral, PublicKeyToken=716fcc553a201e56)

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Exception 3

Could not load type ‘Aspose.Slides.Presentation’ from assembly ‘Aspose.Slides, Version=18.12.0.0, Culture=neutral, PublicKeyToken=716fcc553a201e56’.

System.TypeLoadException: at . (GroupDocs.Conversion, Version=19.1.0.0, Culture=neutral, PublicKeyToken=716fcc553a201e56) at . (GroupDocs.Conversion, Version=19.1.0.0, Culture=neutral, PublicKeyToken=716fcc553a201e56) at . (GroupDocs.Conversion, Version=19.1.0.0, Culture=neutral, PublicKeyToken=716fcc553a201e56) at . (GroupDocs.Conversion, Version=19.1.0.0, Culture=neutral, PublicKeyToken=716fcc553a201e56) at GroupDocs.Conversion.Handler.ConversionHandler.Convert (GroupDocs.Conversion, Version=19.1.0.0, Culture=neutral, PublicKeyToken=716fcc553a201e56) at BoardPro.Functions.Pdf.Business.Conversion.DocumentToPdfProvider.ConvertToPdfDocument (BoardPro.Functions.Pdf.Business, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null) at BoardPro.Functions.Pdf.Business.Conversion.DocumentToPdfProvider.LoadPdfFromDocument (BoardPro.Functions.Pdf.Business, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null) at BoardPro.Functions.Pdf.Business.Conversion.PdfConversionHandler.ConvertToPdfFile (BoardPro.Functions.Pdf.Business, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null)

2

@zeeshan1,

Thank you for your inquiry.
We are investigating this scenario at our end. Your investigation ticket ID is CONVERSIONNET-2921. We’ll let you know as we have any further update.

3

A few more examples for the benefit of your team

Exception 1

Bad binary signature. (Exception from HRESULT: 0x80131192)

System.BadImageFormatException

System.BadImageFormatException: at .#=zFUap$r_GT$Vl (Aspose.PDF, Version=19.1.0.0, Culture=neutral, PublicKeyToken=716fcc553a201e56) at .#=zJVkvIn4= (Aspose.PDF, Version=19.1.0.0, Culture=neutral, PublicKeyToken=716fcc553a201e56) at .#=zJVkvIn4= (Aspose.PDF, Version=19.1.0.0, Culture=neutral, PublicKeyToken=716fcc553a201e56) at .#=zJVkvIn4= (Aspose.PDF, Version=19.1.0.0, Culture=neutral, PublicKeyToken=716fcc553a201e56) at .#=zJVkvIn4= (Aspose.PDF, Version=19.1.0.0, Culture=neutral, PublicKeyToken=716fcc553a201e56) at Aspose.Pdf.Document. (Aspose.PDF, Version=19.1.0.0, Culture=neutral, PublicKeyToken=716fcc553a201e56) at Aspose.Pdf.Document. (Aspose.PDF, Version=19.1.0.0, Culture=neutral, PublicKeyToken=716fcc553a201e56) at . (GroupDocs.Conversion, Version=19.1.0.0, Culture=neutral, PublicKeyToken=716fcc553a201e56) at . (GroupDocs.Conversion, Version=19.1.0.0, Culture=neutral, PublicKeyToken=716fcc553a201e56) at . (GroupDocs.Conversion, Version=19.1.0.0, Culture=neutral, PublicKeyToken=716fcc553a201e56) at GroupDocs.Conversion.Handler.ConvertedDocument.Save (GroupDocs.Conversion, Version=19.1.0.0, Culture=neutral, PublicKeyToken=716fcc553a201e56) at BoardPro.Functions.Pdf.Business.Conversion.DocumentToPdfProvider.ConvertToPdfDocument (BoardPro.Functions.Pdf.Business, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null) at BoardPro.Functions.Pdf.Business.Conversion.DocumentToPdfProvider.LoadPdfFromDocument (BoardPro.Functions.Pdf.Business, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null) at BoardPro.Functions.Pdf.Business.Conversion.PdfConversionHandler.ConvertToPdfFile (BoardPro.Functions.Pdf.Business, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null)

Exception 2:

Could not load type ‘Aspose.Slides.Presentation’ from assembly ‘Aspose.Slides, Version=18.12.0.0, Culture=neutral, PublicKeyToken=716fcc553a201e56’.

System.TypeLoadException: at . (GroupDocs.Conversion, Version=19.1.0.0, Culture=neutral, PublicKeyToken=716fcc553a201e56) at . (GroupDocs.Conversion, Version=19.1.0.0, Culture=neutral, PublicKeyToken=716fcc553a201e56) at . (GroupDocs.Conversion, Version=19.1.0.0, Culture=neutral, PublicKeyToken=716fcc553a201e56) at . (GroupDocs.Conversion, Version=19.1.0.0, Culture=neutral, PublicKeyToken=716fcc553a201e56) at GroupDocs.Conversion.Handler.ConversionHandler.Convert (GroupDocs.Conversion, Version=19.1.0.0, Culture=neutral, PublicKeyToken=716fcc553a201e56) at BoardPro.Functions.Pdf.Business.Conversion.DocumentToPdfProvider.ConvertToPdfDocument (BoardPro.Functions.Pdf.Business, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null) at BoardPro.Functions.Pdf.Business.Conversion.DocumentToPdfProvider.LoadPdfFromDocument (BoardPro.Functions.Pdf.Business, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null) at BoardPro.Functions.Pdf.Business.Conversion.PdfConversionHandler.ConvertToPdfFile (BoardPro.Functions.Pdf.Business, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null)

1 Like
4

@zeeshan1,

Thanks for sharing further details.
Can you please also confirm if you face same issue in a simple console application?

5

No, this problem doesn not occur when I run it locally. But running it locally does show some warning, perhaps its related? See the attached screenshot image.png (63.2 KB)

6

@zeeshan1,

Yes, it’ll be helpful. We appreciate your cooperation. You’ll be notified as we have any further update on it.

7

Is there an update on this? We are struggling with frustrated customers and no workaround other than to keep redeploying.

9

@zeeshan1,

Sorry for the inconvenience you are facing.
We have updates regarding CONVERSIONNET-2921.
This issue is not reproduced with any combination of GroupDocs.Conversion and Aspose.Pdf/Aspose.Slides/Aspose.Words in a simple console application.
However, for further investigation we need following details from you:

  • Can you provide a sample project using that issue could be reproduced?
  • Do you have difference between local and azure setup related to the target platform (x86/x64)?