Umbraco Forms null exception when trying to view Entries
# help-with-umbraco


02/01/2024, 12:23 PM
I have upgraded a site from Umbraco V8 to Umbraco V13 I can view the forms on the frontend and edit them in the backend, all the workflows work correctly etc... However I cannot view the entries in the backoffice, none of the errors get logged. I'm suspecting a lack of a try catch in the source 😉 What would be the best way to debug what it can't find?
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  "ExceptionMessage": "Object reference not set to an instance of an object.",
  "ExceptionType": "System.NullReferenceException, System.Private.CoreLib, Version=, Culture=neutral, PublicKeyToken=7cec85d7bea7798e",
  "StackTrace": "   at Umbraco.Forms.Core.Models.Form.ApplyDictionaryTranslationsToPrevalueCaptions(IDictionaryHelper dictionaryHelper)\r\n   at Umbraco.Forms.Web.Editors.FormController.GetWithWorkflowsByGuid(Guid guid, Boolean applyDictionaryTranslations)\r\n   at lambda_method272(Closure, Object, Object[])\r\n   at Microsoft.AspNetCore.Mvc.Infrastructure.ControllerActionInvoker.<InvokeActionMethodAsync>g__Logged|12_1(ControllerActionInvoker invoker)\r\n   at Microsoft.AspNetCore.Mvc.Infrastructure.ControllerActionInvoker.<InvokeNextActionFilterAsync>g__Awaited|10_0(ControllerActionInvoker invoker, Task lastTask, State next, Scope scope, Object state, Boolean isCompleted)\r\n   at Microsoft.AspNetCore.Mvc.Infrastructure.ControllerActionInvoker.Rethrow(ActionExecutedContextSealed context)\r\n   at Microsoft.AspNetCore.Mvc.Infrastructure.ControllerActionInvoker.Next(State& next, Scope& scope, Object& state, Boolean& isCompleted)\r\n   at Microsoft.AspNetCore.Mvc.Infrastructure.ControllerActionInvoker.InvokeInnerFilterAsync()\r\n--- End of stack trace from previous location ---\r\n   at Microsoft.AspNetCore.Mvc.Infrastructure.ResourceInvoker.<InvokeNextExceptionFilterAsync>g__Awaited|26_0(ResourceInvoker invoker, Task lastTask, State next, Scope scope, Object state, Boolean isCompleted)"
Needed a null check to be added, this will get added in a future patch