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HomeHomeUsing DNN Platf...Using DNN Platf...Administration ...Administration ...DNN Image HandlerDNN Image Handler
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7/8/2016 4:18 PM

Any idea what this is coming from? I am not receive any on screen error and I have not found anything to not work properly yet. I am getting this error on multiple sites using DNN 8.0.3.


DefaultDataProvider:DotNetNuke.Data.SqlDataProvider, DotNetNuke










Message:Unhandled Error: 



InnerMessage:The process cannot access the file 'D:\home\site\wwwroot\App_Data\_imagecache\8CFCAA0F42AEC375ED626769F396AA876ED850AC.tmp' because it is being used by another process.


   at System.IO.__Error.WinIOError(Int32 errorCode, String maybeFullPath)
   at System.IO.FileStream.Init(String path, FileMode mode, FileAccess access, Int32 rights, Boolean useRights, FileShare share, Int32 bufferSize, FileOptions options, SECURITY_ATTRIBUTES secAttrs, String msgPath, Boolean bFromProxy, Boolean useLongPath, Boolean checkHost)
   at System.IO.FileStream..ctor(String path, FileMode mode, FileAccess access, FileShare share)
   at System.Web.HttpResponse.TransmitFile(String filename, Int64 offset, Int64 length)
   at System.Web.HttpResponseWrapper.TransmitFile(String filename)
   at DotNetNuke.Services.GeneratedImage.DiskImageStore.TryTransmitIfContains(String id, HttpResponseBase response)
   at DotNetNuke.Services.GeneratedImage.DiskImageStore.DotNetNuke.Services.GeneratedImage.IImageStore.TryTransmitIfContains(String id, HttpResponseBase response)
   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.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously)







Server Name: RD000D3A602AA8

New Post
7/8/2016 7:33 PM
AFAIR according to JIRA, it might be an DNN internal bug, which should be fixed in a future Version.

Cheers from Germany,
Sebastian Leupold

dnnWerk - The DotNetNuke Experts   German Spoken DotNetNuke User Group

Speed up your DNN Websites with TurboDNN
New Post
7/12/2016 3:12 PM
Just an FYI. I am receiving the same errors in 8.0.3 also.
New Post
7/13/2016 10:00 AM
Add to your appsettings in the web.config:

<add key="DnnImageHandler" value="EnableServerCache=false;" /> is a community for IT Consultants and Business Owners who, themselves, take care of the IT infrastructure and Employees who do that little extra in the company to keep things running. Our forum is for discussing all things ‘IT’ and more. Our documentation is top notch and written by and for the community. Join now at
New Post
8/3/2016 12:07 PM

Added to the web.config and error is gone.

Would I need to remove it in the future should the bug be fixed?

HomeHomeUsing DNN Platf...Using DNN Platf...Administration ...Administration ...DNN Image HandlerDNN Image Handler

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