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Aspose:Exception with message "Object reference not set to an instance of an object. " at at Aspose.Slides.Pptx.PictureFillFormatEx.b(h6 A_0


Conversion of pptx file to PDF failed with Aspose.slides(ver.5.6). Following are 3 null reference exceptions and code snippet. Can you please provide fix asap?
Code:
                        Aspose.Slides.License pptxLicense = new Aspose.Slides.License();
                        pptxLicense.SetLicense("Aspose.Total.lic");
                    Aspose.Slides.Pptx.PresentationEx presentationEx = new Aspose.Slides.Pptx.PresentationEx(sourceFile);
                    presentationEx.Save(destinationFilePath, Aspose.Slides.Export.SaveFormat.Pdf);

                    retVal = destinationFilePath;</span></font></pre><span style="color: rgb(0, 0, 0); font-family: Arial, sans-serif; font-size: 17px; font-weight: normal; white-space: pre-wrap; ">exception:</span></pre></h3></pre><pre style="font-family: Arial, sans-serif; font-size: 17px; color: rgb(0, 0, 0); font-weight: normal; word-wrap: break-word; white-space: pre-wrap; "><span style="font-size: 12px; white-space: normal; background-color: rgb(255, 255, 255); ">2/3/2012 5:43:48 AM\</span><br style="font-size: 12px; white-space: normal; background-color: rgb(255, 255, 255); "><span style="font-size: 12px; white-space: normal; background-color: rgb(255, 255, 255); ">Message: HandlingInstanceID: 7f3a8c3f-160a-4181-9c2b-6129933e2a54\</span><br style="font-size: 12px; white-space: normal; background-color: rgb(255, 255, 255); "><span style="font-size: 12px; white-space: normal; background-color: rgb(255, 255, 255); "><Exception>\</span><br style="font-size: 12px; white-space: normal; background-color: rgb(255, 255, 255); "><span style="font-size: 12px; white-space: normal; background-color: rgb(255, 255, 255); "><Description>An exception of type 'System.NullReferenceException' occurred and was caught.</Description>\</span><br style="font-size: 12px; white-space: normal; background-color: rgb(255, 255, 255); "><span style="font-size: 12px; white-space: normal; background-color: rgb(255, 255, 255); "><DateTime>2012-02-03 00:43:48Z</DateTime>\</span><br style="font-size: 12px; white-space: normal; background-color: rgb(255, 255, 255); "><span style="font-size: 12px; white-space: normal; background-color: rgb(255, 255, 255); "><ExceptionType>System.NullReferenceException, mscorlib, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</ExceptionType>\</span><br style="font-size: 12px; white-space: normal; background-color: rgb(255, 255, 255); "><span style="font-size: 12px; white-space: normal; background-color: rgb(255, 255, 255); "><Message>Object reference not set to an instance of an object.</Message>\</span><br style="font-size: 12px; white-space: normal; background-color: rgb(255, 255, 255); "><span style="font-size: 12px; white-space: normal; background-color: rgb(255, 255, 255); "><Source>Aspose.Slides in file: C:\\WINDOWS\\TEMP\\IntraLinks\\7eeec304-3c21-4acd-95ec-35118de0bebd.pptx</Source>\</span><br style="font-size: 12px; white-space: normal; background-color: rgb(255, 255, 255); "><span style="font-size: 12px; white-space: normal; background-color: rgb(255, 255, 255); "><HelpLink />\</span><br style="font-size: 12px; white-space: normal; background-color: rgb(255, 255, 255); "><span style="font-size: 12px; white-space: normal; background-color: rgb(255, 255, 255); "><Property name="Data">System.Collections.ListDictionaryInternal</Property>\</span><br style="font-size: 12px; white-space: normal; background-color: rgb(255, 255, 255); "><span style="font-size: 12px; white-space: normal; background-color: rgb(255, 255, 255); "><Property name="TargetSite">Void b(h6)</Property>\</span><br style="font-size: 12px; white-space: normal; background-color: rgb(255, 255, 255); "><span style="font-size: 12px; white-space: normal; background-color: rgb(255, 255, 255); "><StackTrace> at Aspose.Slides.Pptx.PictureFillFormatEx.b(h6 A_0)\</span><br style="font-size: 12px; white-space: normal; background-color: rgb(255, 255, 255); "><span style="font-size: 12px; white-space: normal; background-color: rgb(255, 255, 255); ">at Aspose.Slides.Pptx.PictureFrameEx..ctor(BaseSlideEx A_0, oj A_1)\</span><br style="font-size: 12px; white-space: normal; background-color: rgb(255, 255, 255); "><span style="font-size: 12px; white-space: normal; background-color: rgb(255, 255, 255); ">at Aspose.Slides.Pptx.ShapesEx.a(BaseSlideEx A_0, h6 A_1)\</span><br style="font-size: 12px; white-space: normal; background-color: rgb(255, 255, 255); "><span style="font-size: 12px; white-space: normal; background-color: rgb(255, 255, 255); ">at Aspose.Slides.Pptx.GroupShapeEx..ctor(BaseSlideEx A_0, ss A_1)\</span><br style="font-size: 12px; white-space: normal; background-color: rgb(255, 255, 255); "><span style="font-size: 12px; white-space: normal; background-color: rgb(255, 255, 255); ">at Aspose.Slides.Pptx.BaseSlideEx..ctor(PresentationEx A_0, di A_1)\</span><br style="font-size: 12px; white-space: normal; background-color: rgb(255, 255, 255); "><span style="font-size: 12px; white-space: normal; background-color: rgb(255, 255, 255); ">at Aspose.Slides.Pptx.PresentationEx.a(nb A_0)\</span><br style="font-size: 12px; white-space: normal; background-color: rgb(255, 255, 255); "><span style="font-size: 12px; white-space: normal; background-color: rgb(255, 255, 255); ">at Aspose.Slides.Pptx.PresentationEx..ctor(String file)\</span><br style="font-size: 12px; white-space: normal; background-color: rgb(255, 255, 255); "><span style="font-size: 12px; white-space: normal; background-color: rgb(255, 255, 255); ">at Intralinks.Common.Utilities.CommonUtilities.ConvertOfficeDocsToPDF(String sourceFile, String destinationFolder, Boolean useOriginalFileName) in c:\\ilbuilds\\pdfconv\\build_trunk\\CommonUtilities</span><br clear="all" style="font-size: 12px; white-space: normal; background-color: rgb(255, 255, 255); "><span style="font-size: 12px; white-space: normal; background-color: rgb(255, 255, 255); ">CommonUtilities.cs:line 1376</StackTrace>\</span><br style="font-size: 12px; white-space: normal; background-color: rgb(255, 255, 255); "><span style="font-size: 12px; white-space: normal; background-color: rgb(255, 255, 255); "><additionalInfo>\</span><br style="font-size: 12px; white-space: normal; background-color: rgb(255, 255, 255); "><span style="font-size: 12px; white-space: normal; background-color: rgb(255, 255, 255); "><info name="MachineName" value="WDPDPF01" />\</span><br style="font-size: 12px; white-space: normal; background-color: rgb(255, 255, 255); "><span style="font-size: 12px; white-space: normal; background-color: rgb(255, 255, 255); "><info name="TimeStamp" value="2/3/2012 5:43:48 AM" />\</span><br style="font-size: 12px; white-space: normal; background-color: rgb(255, 255, 255); "><span style="font-size: 12px; white-space: normal; background-color: rgb(255, 255, 255); "><info name="FullName" value="Microsoft.Practices.EnterpriseLibrary.ExceptionHandling, Version=2.0.0.0, Culture=neutral, PublicKeyToken=null" />\</span><br style="font-size: 12px; white-space: normal; background-color: rgb(255, 255, 255); "><span style="font-size: 12px; white-space: normal; background-color: rgb(255, 255, 255); "><info name="AppDomainName" value="ILPDFConversionService.exe" />\</span><br style="font-size: 12px; white-space: normal; background-color: rgb(255, 255, 255); "><span style="font-size: 12px; white-space: normal; background-color: rgb(255, 255, 255); "><info name="ThreadIdentity" value="" />\</span><br style="font-size: 12px; white-space: normal; background-color: rgb(255, 255, 255); "><span style="font-size: 12px; white-space: normal; background-color: rgb(255, 255, 255); "><info name="WindowsIdentity" value="NT AUTHORITY</span><br clear="all" style="font-size: 12px; white-space: normal; background-color: rgb(255, 255, 255); "><span style="font-size: 12px; white-space: normal; background-color: rgb(255, 255, 255); ">SYSTEM" />\</span><br style="font-size: 12px; white-space: normal; background-color: rgb(255, 255, 255); "><span style="font-size: 12px; white-space: normal; background-color: rgb(255, 255, 255); "></additionalInfo>\</span><br style="font-size: 12px; white-space: normal; background-color: rgb(255, 255, 255); "><span style="font-size: 12px; white-space: normal; background-color: rgb(255, 255, 255); "></Exception>\</span><br style="font-size: 12px; white-space: normal; background-color: rgb(255, 255, 255); "><span style="font-size: 12px; white-space: normal; background-color: rgb(255, 255, 255); ">Category: Logging Exception\</span><br style="font-size: 12px; white-space: normal; background-color: rgb(255, 255, 255); "><span style="font-size: 12px; white-space: normal; background-color: rgb(255, 255, 255); ">Priority: 1\</span><br style="font-size: 12px; white-space: normal; background-color: rgb(255, 255, 255); "><span style="font-size: 12px; white-space: normal; background-color: rgb(255, 255, 255); ">EventId: 100\</span><br style="font-size: 12px; white-space: normal; background-color: rgb(255, 255, 255); "><span style="font-size: 12px; white-space: normal; background-color: rgb(255, 255, 255); ">Severity: Error\</span><br style="font-size: 12px; white-space: normal; background-color: rgb(255, 255, 255); "><span style="font-size: 12px; white-space: normal; background-color: rgb(255, 255, 255); ">Title:Enterprise Library Exception Handling\</span><br style="font-size: 12px; white-space: normal; background-color: rgb(255, 255, 255); "><span style="font-size: 12px; white-space: normal; background-color: rgb(255, 255, 255); ">Machine: WDPDPF01\</span><br style="font-size: 12px; white-space: normal; background-color: rgb(255, 255, 255); "><span style="font-size: 12px; white-space: normal; background-color: rgb(255, 255, 255); ">Application Domain: ILPDFConversionService.exe\</span><br style="font-size: 12px; white-space: normal; background-color: rgb(255, 255, 255); "><span style="font-size: 12px; white-space: normal; background-color: rgb(255, 255, 255); ">Process Id: 5756\</span><br style="font-size: 12px; white-space: normal; background-color: rgb(255, 255, 255); "><span style="font-size: 12px; white-space: normal; background-color: rgb(255, 255, 255); ">Process Name: C:\\PDFConvService\\WOODDALE.pdfconv\\instance2\\Release\\ILPDFConversionService.exe\</span><br style="font-size: 12px; white-space: normal; background-color: rgb(255, 255, 255); "><span style="font-size: 12px; white-space: normal; background-color: rgb(255, 255, 255); ">Win32 Thread Id: 7048\</span><br style="font-size: 12px; white-space: normal; background-color: rgb(255, 255, 255); "><span style="font-size: 12px; white-space: normal; background-color: rgb(255, 255, 255); ">Thread Name: \</span><br style="font-size: 12px; white-space: normal; background-color: rgb(255, 255, 255); "><span style="font-size: 12px; white-space: normal; background-color: rgb(255, 255, 255); ">Extended Properties: Product Version - 3.0.24944.0\</span>



No. of occurences:33 Following is the exception:

Timestamp: 1/27/2012 1:06:17 AM
Message: HandlingInstanceID: 2464dead-7106-4021-8792-b72a3e303b6c

An exception of type ‘System.NullReferenceException’ occurred and was caught.
2012-01-26 20:06:17Z
System.NullReferenceException, mscorlib, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089
Object reference not set to an instance of an object.
Aspose.Slides in file: C:\WINDOWS\TEMP\IntraLinks\ad0e7dd7-34c8-47c4-8219-2a9e3ddeb6f3.pptx

System.Collections.ListDictionaryInternal
Void .ctor(Aspose.Slides.Pptx.BaseSlideEx, sd)
at Aspose.Slides.Pptx.OleObjectFrameEx…ctor(BaseSlideEx A_0, sd A_1)
at Aspose.Slides.Pptx.ShapesEx.a(BaseSlideEx A_0, h6 A_1)
at Aspose.Slides.Pptx.GroupShapeEx…ctor(BaseSlideEx A_0, ss A_1)
at Aspose.Slides.Pptx.BaseSlideEx…ctor(PresentationEx A_0, di A_1)
at Aspose.Slides.Pptx.PresentationEx.a(nb A_0)
at Aspose.Slides.Pptx.PresentationEx…ctor(String file)
at Intralinks.Common.Utilities.CommonUtilities.ConvertOfficeDocsToPDF(String sourceFile, String destinationFolder, Boolean useOriginalFileName) in c:\ilbuilds\pdfconv\build_trunk\CommonUtilities\CommonUtilities.cs:line 1376









Category: Logging Exception
Priority: 1
EventId: 100
Severity: Error
Title:Enterprise Library Exception Handling
Machine: WDPDPF01
Application Domain: ILPDFConversionService.exe
Process Id: 5600
Process Name: C:\PDFConvService\WOODDALE.pdfconv\instance3\Release\ILPDFConversionService.exe
Win32 Thread Id: 6328
Thread Name:
Extended Properties: Product Version - 3.0.24944.0



No. of occurences:5 Following is the exception:

Timestamp: 1/27/2012 1:06:17 AM
Message: HandlingInstanceID: 2464dead-7106-4021-8792-b72a3e303b6c

An exception of type ‘System.NullReferenceException’ occurred and was caught.
2012-01-26 20:06:17Z
System.NullReferenceException, mscorlib, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089
Object reference not set to an instance of an object.
Aspose.Slides in file: C:\WINDOWS\TEMP\IntraLinks\ad0e7dd7-34c8-47c4-8219-2a9e3ddeb6f3.pptx

System.Collections.ListDictionaryInternal
Void .ctor(Aspose.Slides.Pptx.BaseSlideEx, sd)
at Aspose.Slides.Pptx.OleObjectFrameEx…ctor(BaseSlideEx A_0, sd A_1)
at Aspose.Slides.Pptx.ShapesEx.a(BaseSlideEx A_0, h6 A_1)
at Aspose.Slides.Pptx.GroupShapeEx…ctor(BaseSlideEx A_0, ss A_1)
at Aspose.Slides.Pptx.BaseSlideEx…ctor(PresentationEx A_0, di A_1)
at Aspose.Slides.Pptx.PresentationEx.a(nb A_0)
at Aspose.Slides.Pptx.PresentationEx…ctor(String file)
at Intralinks.Common.Utilities.CommonUtilities.ConvertOfficeDocsToPDF(String sourceFile, String destinationFolder, Boolean useOriginalFileName) in c:\ilbuilds\pdfconv\build_trunk\CommonUtilities\CommonUtilities.cs:line 1376









Category: Logging Exception
Priority: 1
EventId: 100
Severity: Error
Title:Enterprise Library Exception Handling
Machine: WDPDPF01
Application Domain: ILPDFConversionService.exe
Process Id: 5600
Process Name: C:\PDFConvService\WOODDALE.pdfconv\instance3\Release\ILPDFConversionService.exe
Win32 Thread Id: 6328
Thread Name:
Extended Properties: Product Version - 3.0.24944.0


Hi Viral,


I feel that you have already added the similar issue here as well. Please share the source presentation with us so that we may proceed further with the investigation. Pleas try out the latest version of Aspose.Slides for .NET 5.9.0 as well on your end.

Many Thanks,