Hi,
I’m using Aspose Slides 18.6.0.0 to try to reload a ppt file after saving it, but when I do that, exception was thrown with 2 types of exception: " Value cannot be null.\r\nParameter name: key"" and “object reference not set to an instance of an object”.
My sample code:
FileStream fStream = new FileStream(original_ppt_file, FileMode.Open, FileAccess.Read, FileShare.ReadWrite);
fStream.Seek(0, SeekOrigin.Begin);
Presentation presentation= new Presentation(fStream);
presentation.Save(temp_file, SaveFormat.Ppt);
fStream = null;
fStream = new FileStream(temp_file, FileMode.Open, FileAccess.Read, FileShare.ReadWrite);
fStream.Seek(0, SeekOrigin.Begin);
presentation= new Presentation(fStream);
The exception will be thrown when I try to re-load the temp file using presentation.
I tried to upgrade Aspose Slides to lastest version: 18.12.0.0 but the issue still be there.
Here is my sample: sample.zip (3.8 MB)
Please check and give me some advices.
Thanks,
Dung H. Nguyen