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Forums Using DNN Platform Administration and Configuration

DnnImageHandler General Exception Error

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ms930
New Around Here
Posts: 3
New Around Here
8/17/2020 2:19 PM

DnnImageHandler doesn't work since I moved my website from my local server to a host. I have no Idea How to fix it. The Error occurs whenever DnnImageHandler calls a user's profile image or any other profile property of image type. No user images are shown. DnnImageHandler recurring Error:

Version Information: Microsoft .NET Framework Version:4.0.30319; ASP.NET Version:4.8.4075.0

DNN 9.4.1

AbsoluteURL:/DnnImageHandler.ashx

DefaultDataProvider:DotNetNuke.Data.SqlDataProvider, DotNetNuke

ExceptionGUID:d741bc90-73c2-4a85-af1c-d0f2e21547d4

AssemblyVersion:

 

ExceptionHash:7kgL5R6baI4X2Yh8vqcikOx2+Bs=

Message:Unhandled Error:

StackTrace:

InnerMessage:Parameter is not valid.

InnerStackTrace:

   at System.Drawing.Image.FromStream(Stream stream, Boolean useEmbeddedColorManagement, Boolean validateImageData)
   at DotNetNuke.Services.GeneratedImage.ImageHandlerInternal.GetImageThroughTransforms(Byte[] buffer)
   at DotNetNuke.Services.GeneratedImage.ImageHandlerInternal.HandleImageRequest(HttpContextBase context, Func`2 imageGenCallback, String uniqueIdStringSeed)
   at DotNetNuke.Services.GeneratedImage.ImageHandler.ProcessRequest(HttpContextBase context)
   at DotNetNuke.Services.GeneratedImage.ImageHandler.ProcessRequest(HttpContext context)
   at System.Web.HttpApplication.CallHandlerExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute()
   at System.Web.HttpApplication.ExecuteStepImpl(IExecutionStep step)
   at System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously)

 

 

 

Michael Tobisch
Veteran Member
Posts: 1182
Veteran Member
MVP
MVP
You're an MVP!
8/18/2020 5:26 AM

Did you check your web.config file if the image handler is added in the system.webServer/handlers section?

[add name="DnnImageHandler" 
    path="DnnImageHandler.ashx" 
    verb="*" 
    type="DotNetNuke.Services.GeneratedImage.DnnImageHandler, DotNetNuke"
    preCondition="integratedMode" /]

(replace [ by < and ] by >)

Happy DNNing!
Michael

Michael Tobisch
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ms930
New Around Here
Posts: 3
New Around Here
8/18/2020 6:03 AM

Yes, I have the following lines in Web.config file:

[add key="DnnImageHandler" value="EnableServerCache=false;" /]

[add name="DnnImageHandler" path="DnnImageHandler.ashx" verb="*" type="DotNetNuke.Services.GeneratedImage.DnnImageHandler, DotNetNuke" preCondition="integratedMode" /]
   

 

 

ms930
New Around Here
Posts: 3
New Around Here
8/18/2020 6:09 AM

Problem solved. I contacted the server administrator. Apparently "Enable 32-bit applications" was enabled in the IIS configuration. Disabling it solved the issue.

Michael Tobisch
Veteran Member
Posts: 1182
Veteran Member
MVP
MVP
You're an MVP!
8/18/2020 10:24 AM
Great - thanks for sharing!

Happy DNNing!
Michael

Michael Tobisch
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