DynamicPDF Converter service event log error

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DynamicPDF Converter for .NET (v3) Forum

Service crashes whenever I try converting a word doc to pdf. Installed via NuGet. Running in IIS in an ASP.NET web application. On screen error is "System.IO.FileNotFoundException: Could not find file 'C:\windows\TEMP\3193c2aa-fc7a-4cc8-a647-c170c0c621ca.pdf'."

Windows Event Log error:
Service stopped.
Exception details
 Type : System.InvalidCastException
 Message : Unable to cast object of type 'SyncStream' to type 'System.IO.MemoryStream'.
 Source : DynamicPDF.Converter.Service
 StackTrace :    at d.c()
   at g.a(d A_0)
   at g.e()
   at g.b()
   at System.Threading.ThreadHelper.ThreadStart_Context(Object state)
   at System.Threading.ExecutionContext.RunInternal(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean preserveSyncCtx)
   at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean preserveSyncCtx)
   at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state)
   at System.Threading.ThreadHelper.ThreadStart()
Posted by a ceTe Software moderator
Hi,

Please make sure to install the Windows Service when using the product from IIS. The service can be found in your projects "DPDFConverterService" folder if you referenced the product from NuGet, or in the "DPDFConverterService" folder of the download from our site. This folder contains a ReadMe  with instructions on how to install it.  Please pay special attention to step #4 (copying the DLL to the folder) as it is easy to miss.

Thanks,
ceTe Software Support Team
The service is installed. That is what is generating this event/error.
There are three errors in the event log always together when this happens:

--------------------------------------------------------------------------------------
   [ Name]  DynamicPDF Converter
 
   Keywords 0x80000000000000

   [ SystemTime]  2021-11-01T20:08:42.620153400Z

   Service stopped. Exception details Type : System.InvalidCastException Message : Unable to cast object of type 'SyncStream' to type 'System.IO.MemoryStream'. Source : DynamicPDF.Converter.Service StackTrace : at d.c() at g.a(d A_0) at g.e() at g.b() at System.Threading.ThreadHelper.ThreadStart_Context(Object state) at System.Threading.ExecutionContext.RunInternal(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean preserveSyncCtx) at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean preserveSyncCtx) at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state) at System.Threading.ThreadHelper.ThreadStart()

--------------------------------------------------------------------------------------
   [ Name]  .NET Runtime
 
   Keywords 0x80000000000000
 
   [ SystemTime]  2021-11-01T20:08:42.621159700Z
 
   Application: DynamicPDF.Converter.Service.exe Framework Version: v4.0.30319 Description: The process was terminated due to an unhandled exception. Exception Info: System.InvalidCastException at d.c() at g.a(d) at g.e() at g.b() at System.Threading.ThreadHelper.ThreadStart_Context(System.Object) at System.Threading.ExecutionContext.RunInternal(System.Threading.ExecutionContext, System.Threading.ContextCallback, System.Object, Boolean) at System.Threading.ExecutionContext.Run(System.Threading.ExecutionContext, System.Threading.ContextCallback, System.Object, Boolean) at System.Threading.ExecutionContext.Run(System.Threading.ExecutionContext, System.Threading.ContextCallback, System.Object) at System.Threading.ThreadHelper.ThreadStart() 

--------------------------------------------------------------------------------------
   [ Name]  Application Error
 
   Keywords 0x80000000000000

   [ SystemTime]  2021-11-01T20:08:43.013147200Z

   DynamicPDF.Converter.Service.exe
   3.10.0.44688
   6142ebbe
   KERNELBASE.dll
   10.0.17763.2183
   12a65345
   e0434352
   001235e2
   2664
   01d7cf5bca5aa128
   c:\Program Files\DynamicPDFService\DPDFConverterService\DynamicPDF.Converter.Service.exe
   C:\Windows\System32\KERNELBASE.dll
   c8268568-da22-42c2-8da6-6c8f4d3b6d49
    
    

Posted by a ceTe Software moderator
Hi,

We will send these error details to our developers to look into it further. Could you please send over the word document and a sample code that can recreate the issue to our support team? Also please provide the office version and the OS details that are used.

Thanks,
ceTe Software Support Team
OS is Windows Server 2019 running IIS

Office 2016 is installed on the server

C:\Windows\TEMP is opened up for Everyone

I cannot share the documents because they contain protected patient medical data but ANY word doc or docx causes the error.

Every time a user tries to convert a Word doc the error occurs and DynamicPDF service crashes with the three exceptions I listed above.
Has there been any progress on this at all?
Posted by a ceTe Software moderator
Hi,

Yes, we've identified the issue and are testing the fix. We expect to have a new build ready early next week. If you'd like to test out a beta build, please send an email to support@dynamicpdf.com and we'll send an download link over to you.

Thanks,
ceTe Software Support Team
Posted by a ceTe Software moderator
Hi,

We have an update from our development team and this issue is fixed in latest release, DynamicPDF Converter for .NET (v3.11). You can download latest version from NuGet (Package ID: ceTe.DynamicPDF.Converter.NET) or from our website  here

If you are wanting the use DynamicPDF Converter Service, then please unregister the older and register the latest one.

The service can be found in your projects "DPDFConverterService" folder if you referenced the product from NuGet, or in the "DPDFConverterService" folder of the download from our site. This folder contains a ReadMe with instructions on how to install it.  Please pay special attention to step #4 (copying the DLL to the folder) as it is easy to miss.

Thanks,
ceTe Software Support Team
Thank you! I have the fix and it is working perfectly now :-)

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