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Syncfusion Feedback

Open/Create presentation in Azure function

Thread ID:





141724 Dec 29,2018 04:35 AM UTC Jan 2,2019 08:33 AM UTC ASP.NET MVC 3
Tags: Presentation
Frank Sposaro
Asked On December 29, 2018 04:35 AM UTC

Hi all,

I'm trying to build a processing pipeline using Azure Logic App.

When a form response is received it will trigger an Azure function that will create a PPTX.

The function copies a template pptx to a memory stream from Azure storage blob, makes modifications, and then uploads the stream back to the blob.
However, I am running into issues opening the presentation from the stream.

Any Ideas?

            blob = container.GetBlockBlobReference("template.pptx");

            Stream inStream = new MemoryStream();


            using (IPresentation pptxDoc = Presentation.Open(inStream))
                /* Make modifications here */

                return new HttpResponseMessage(HttpStatusCode.OK);

Karthikeyan Chandrasekar [Syncfusion]
Replied On December 31, 2018 10:28 AM UTC

Hi Frank, 
We suspect different version of “Syncfusion.Licensing” assembly is referred in Azure Function sample, which gives error on runtime while opening or creating the Presentation using our Syncfusion Presentation library. Could you please ensure whether below referred assemblies are in same version?   

Still if you are facing same error, please send us the stack trace of the error. So that we can proceed further in this and provide you a solution. 

Frank Sposaro
Replied On December 31, 2018 06:55 PM UTC

You are correct. I dug deeper through the logs and found this error:

"Could not load file or assembly 'Syncfusion.Licensing, Version=16.4450.0.44, Culture=neutral, PublicKeyToken=123...321' or one of its dependencies. The system cannot find the file specified.

Please see the Sync Fusion versions I am using below. How can I get around this issue, which version should I be using? I double checked and there wasn't a nuget update for this.

Karthikeyan Chandrasekar [Syncfusion]
Replied On January 2, 2019 08:33 AM UTC

Hi Frank, 
Syncfusion.Presentation.AspNet.Mvc5 NuGet is compatible only with MVC application which is targeting framework 4.5. So if your application framework is different than 4.5 you should use the Syncfusion.Presentation.WinForms NuGet which will be compatible in 2.0, 3.0, 4.5, 4.5.1 and 4.6 frameworks.

By installing Syncfusion.Presentation.WinForms NuGet in your Azure Function application instead of Syncfusion.Presentation.AspNet.Mvc5 NuGet, you can resolve this issue.

Please let me know if you have any questions. 


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