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4/13/2017 5:12 AM
 
Shashi Rao


Joined: 4/12/2017
Posts: 2

I have been trying to upgrade my DNN 8.0.4 site to 9.0.2 and keep getting the following error:

 

Object reference not set to an instance of an object.

Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code. 

Exception Details: System.NullReferenceException: Object reference not set to an instance of an object.

Source Error: 

An unhandled exception was generated during the execution of the current web request. Information regarding the origin and location of the exception can be identified using the exception stack trace below.


Stack Trace: 

[NullReferenceException: Object reference not set to an instance of an object.]
   DotNetNuke.Web.Mvc.MvcHttpModule.SuppressXFrameOptionsHeaderIfPresentInConfig() +248
   DotNetNuke.Web.Mvc.MvcHttpModule.Init(HttpApplication context) +12
   System.Web.HttpApplication.RegisterEventSubscriptionsWithIIS(IntPtr appContext, HttpContext context, MethodInfo[] handlers) +534
   System.Web.HttpApplication.InitSpecial(HttpApplicationState state, MethodInfo[] handlers, IntPtr appContext, HttpContext context) +172
   System.Web.HttpApplicationFactory.GetSpecialApplicationInstance(IntPtr appContext, HttpContext context) +339
   System.Web.Hosting.PipelineRuntime.InitializeApplication(IntPtr appContext) +296

[HttpException (0x80004005): Object reference not set to an instance of an object.]
   System.Web.HttpRuntime.FirstRequestInit(HttpContext context) +9946132
   System.Web.HttpRuntime.EnsureFirstRequestInit(HttpContext context) +90
   System.Web.HttpRuntime.ProcessRequestNotificationPrivate(IIS7WorkerRequest wr, HttpContext context) +261
 
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5/30/2018 11:15 PM
 
Will Strohl


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https://upendoventures.com
Joined: 3/1/2005
Posts: 2884
*BUMP*

I just ran into this myself. I haven't dug into it yet.
Will Strohl

Upendo Ventures Upendo Ventures
DNN experts since 2003
Official provider of the Hotcakes Commerce Cloud and SLA support
 
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5/30/2018 11:42 PM
 
Will Strohl


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https://upendoventures.com
Joined: 3/1/2005
Posts: 2884
Okay... I just spent some time on this... It's actually quite easy to resolve, but took some effort in comparing clean and upgraded instances of DNN, and the following JIRA and forum thread helped too.

Make sure you have the proper references for assembly dependencies in web.config:

https://dnntracker.atlassian.net/brow...

Make sure you remove the from the httpProtocol in web.config:

http://www.dnnsoftware.com/forums/for...
Will Strohl

Upendo Ventures Upendo Ventures
DNN experts since 2003
Official provider of the Hotcakes Commerce Cloud and SLA support
 
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