Hi there

I'm using a CMS called Umbraco, which has a form module built in. As soon as I register the MvcToPDF filter using EO.Pdf.Mvc.MVCToPDF.RegisterFilter(typeof(GlobalFilters)), I get a null pointer reference when posting a form using the form module in Umbraco. The stack trace is pointing towards MVCToPDF being the culprint as far as I can tell:

[NullReferenceException: Object reference not set to an instance of an object.]
EO.Pdf.Mvc.MVCToPDF.a() +26
System.Web.Mvc.ControllerActionInvoker.InvokeActionResultFilterRecursive(IList`1 filters, Int32 filterIndex, ResultExecutingContext preContext, ControllerContext controllerContext, ActionResult actionResult) +397
System.Web.Mvc.ControllerActionInvoker.InvokeActionResultFilterRecursive(IList`1 filters, Int32 filterIndex, ResultExecutingContext preContext, ControllerContext controllerContext, ActionResult actionResult) +795
System.Web.Mvc.ControllerActionInvoker.InvokeActionResultWithFilters(ControllerContext controllerContext, IList`1 filters, ActionResult actionResult) +81
System.Web.Mvc.Async.<>c__DisplayClass3_1.<BeginInvokeAction>b__1(IAsyncResult asyncResult) +188
System.Web.Mvc.Async.AsyncControllerActionInvoker.EndInvokeAction(IAsyncResult asyncResult) +38
System.Web.Mvc.<>c.<BeginExecuteCore>b__152_1(IAsyncResult asyncResult, ExecuteCoreState innerState) +29
System.Web.Mvc.Async.WrappedAsyncVoid`1.CallEndDelegate(IAsyncResult asyncResult) +73
System.Web.Mvc.Controller.EndExecuteCore(IAsyncResult asyncResult) +52
System.Web.Mvc.Async.WrappedAsyncVoid`1.CallEndDelegate(IAsyncResult asyncResult) +39
System.Web.Mvc.Controller.EndExecute(IAsyncResult asyncResult) +38
System.Web.Mvc.<>c.<BeginProcessRequest>b__20_1(IAsyncResult asyncResult, ProcessRequestState innerState) +43
System.Web.Mvc.Async.WrappedAsyncVoid`1.CallEndDelegate(IAsyncResult asyncResult) +73
System.Web.Mvc.MvcHandler.EndProcessRequest(IAsyncResult asyncResult) +38
System.Web.CallHandlerExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute() +651
System.Web.HttpApplication.ExecuteStepImpl(IExecutionStep step) +220
System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously) +134


I didn't even implement any pdf logic yet, all I did was to add the EO.Pdf and EO.Pdf.Mvc nuget packages, and register the filter at startup.

What are my options here?

Hi,

I'm using 19.0.69, but I've testet with the lastest build as well (19.2.9.1). Same issue unfortunately.

Awesome!
Let me know if you want me to send an isolated VS solution and steps to reproduce.

Hi,

Sorry about the delay. We were trying to duplicate the issue in our environment, but could not continue because Umbraco Forms is an AddOn that requires a license. We have contacted Umbraco to see if they can provide a temporary test license to us so that we can investigate this issue further. As soon as we hear back from them, we will continue investigate this issue.

Thanks!

Hi,

No. We have not heard anything from them, so we were not able to investigate further at that time. However we did resolve a few other issues last year based on feedback from other customers that could result in the same error message as yours. So you can try the latest build and see if it works for you.

Note that your current license will not work with the latest build. So make sure you do NOT apply your license key when you try the latest build. If you do not apply any license key, it will automatically enter trial mode thus allowing you to test whether the issue is resolved.

Thanks!