PPT conversion exception

Aspose.Slides Product Family
1

Dear:
I use java slides sdk (version 23.6) to convert pptx, but failed and there exception.
please confirm whether the issue is fixed in some version.

pptx file as below
https://cofile-1255382607.cos.ap-beijing.myqcloud.com/tmp/test.pptx

thanks

2

@gaokunbuaa

I see you’re encountering a PPT conversion exception with Aspose.Slides for Java 23.6. To better assist you:

  • What is the exact error message or exception stack trace you are receiving during the conversion?
  • Can you confirm whether the issue occurs when loading the presentation or during the save/export operation?
  • Does the same code work with other PPTX files, or does it fail only with this specific file?
  • Have you tested with a newer version of Aspose.Slides for Java (e.g., 23.9 or later) to check if the issue is resolved?

Please provide these details so we can determine if it’s a known issue or requires further investigation.

3

the file can be loaded locally and no errors

4

@gaokunbuaa

The user mentions a PPT conversion exception but has not provided the exact error message, stack trace, or details about when the failure occurs (e.g., during save, export, or rendering). Although they confirm the file loads locally without errors, critical diagnostic information is missing to determine if this is a known issue or requires code-level investigation.

5

@gaokunbuaa,

Thanks for the PowerPoint presentation file.

I reproduced the issue as you mentioned by using your PPTX file. I found an exception: “com.aspose.slides.PptxReadException: Cannot invoke “com.aspose.slides.internal…” because the return value is null —> java.lang.NullPointerException” when reading the PPTX file.

Presentation presentation = new Presentation("d:\\files\\test.pptx");

We require thorough evaluation of the issue. We have opened the following new ticket(s) in our internal issue tracking system and will deliver their fixes according to the terms mentioned in Free Support Policies.

Issue ID(s): SLIDESJAVA-39765

You can obtain Paid Support Services if you need support on a priority basis, along with the direct access to our Paid Support management team.