Saving the Presentation to a PPT File in C# Throws NullReferenceException

Aspose.Slides Product Family
1

I have a ppt file,it throw a NullReferenceException when i process it using Aspose.Slides for Net 22.9.

The sample code:

    void Main()
    {
    	var ppt = new Aspose.Slides.Presentation(@"C:\Users\54390\Desktop\demo.ppt");
    	ppt.Save(@"C:\Users\54390\Desktop\result.ppt", Aspose.Slides.Export.SaveFormat.Ppt);
    }

The demo file:
demo.7z (327.4 KB)

The exception info:
20221016194744.png (46.0 KB)

2

@sullivan,
Thank you for reporting the issue.

I’ve reproduced the problem with saving the PPT file and added a ticket with ID SLIDESNET-43520 to our issue tracking system. We apologize for any inconvenience. Our development team will investigate the case. You will be notified when a new release of Aspose.Slides with a fix is published.

It would be great if you could share the following additional information:

  • OS version on which the exception appears
  • .NET target platform in your app

We will then also test a solution in an environment similar to yours.

4

@Andrey_Potapov

OS version:Windows 10、Windows 11
.NET：net framework 4.7

5

@sullivan,
Thank you for the additional information. I’ve forwarded it to our developers.

6

The issues you found earlier (filed as SLIDESNET-43520) have been fixed in Aspose.Slides for .NET 22.12 (ZIP, MSI).
You can check all fixes on the Release Notes page.
You can also find the latest version of our library on the Product Download page.