I have developed some modules in DNN, which is working up to 7.02.02 version. When its installed in 8.00.00 version of DNN then its giving error in all view.ascx pages (A critical error has occurred. Please check the Event Viewer for further details as well as Object reference not set to an instance of an object). but not issue in add/edit page. so can you suggest how we can compatible old module in new version of DNN(8.00.00 or 8.0.3)
see below error...
Error: is currently unavailable. DotNetNuke.Services.Exceptions.ModuleLoadException: Object reference not set to an instance of an object. ---> System.NullReferenceException: Object reference not set to an instance of an object. at Gooddogs.Modules.Dnn.QandA.Views.Result..ctor() at ASP.desktopmodules_qanda_views_result_ascx..ctor() in c:\Windows\Microsoft.NET\Framework64\v4.0.30319\Temporary ASP.NET Files\dnn8\a51b58ca\1564b738\App_Web_azliyz5c.3.cs:line 0 at __ASP.FastObjectFactory_app_web_azliyz5c.Create_ASP_desktopmodules_qanda_views_result_ascx() in c:\Windows\Microsoft.NET\Framework64\v4.0.30319\Temporary ASP.NET Files\dnn8\a51b58ca\1564b738\App_Web_azliyz5c.7.cs:line 0 at System.Web.UI.TemplateControl.LoadControl(IWebObjectFactory objectFactory, VirtualPath virtualPath, Type t, Object[] parameters) at System.Web.UI.TemplateControl.LoadControl(VirtualPath virtualPath) at DotNetNuke.UI.ControlUtilities.LoadControl[T](TemplateControl containerControl, String ControlSrc) at DotNetNuke.UI.Modules.WebFormsModuleControlFactory.CreateModuleControl(TemplateControl containerControl, ModuleInfo moduleConfiguration) at DotNetNuke.UI.Modules.ModuleControlFactory.LoadModuleControl(TemplateControl containerControl, ModuleInfo moduleConfiguration) at DotNetNuke.UI.Modules.ModuleHost.LoadModuleControl() --- End of inner exception stack trace ---