Products

Evoq Content Overview Content Creation Workflow Asset Management Mobile Responsive Personalization Content Analytics SEO Integrations Security Website PerformanceEvoq Engage Overview Community Management  Dashboard  Analytics  Member Profile Gamification Advocate Marketing Community Engagement  Ideas  Answers  Discussions  Groups  Wikis  Events Mobile ReadyDNN Support PackagesEvoq: CMS FeaturesEvoq OnDemandCompare DNN's CMS Products

Solutions

Content Management SystemMulti-Channel PublishingDigital MarketingOnline Community ManagementIntranet Software SolutionOur CustomersPrime

Resources

Test DrivesSchedule A DemoDocumentation CenterWebinarsWhite PapersProduct ManualsRequest PricingData SheetsCase StudiesEvoq Preferred Products Content Management Ecommerce Forms Identity Management and Authentication Site Management Social Themes

Partners

DNN Partners Partner Directory Become a DNN Partner Partner Program Overview  Hosting  Implementation  ISV  Training  Competencies

Community

Participate Ask a Question Forums Community Showcase DNN MVP  Program Overview  Lifetime MVPs  Honorary MVPs Subscribe to DNN Digest Advisory Groups  Awareness Advisory Group  Developer Advisory Group  Partner Advisory Group  Technology Advisory GroupLearn Documentation Wiki Community Blog Video Library Project History Development RoadmapDownload DNN Store Language Packs Manuals Nightly BuildsSecurity Policies Security Center

Blog

About

News Press Releases News Coverage Press KitCareersContact DNN

QA

Ideas Test

New Community Website

Ordinarily, you'd be at the right spot, but we've recently launched a brand new community website... For the community, by the community.

Yay... Take Me to the Community!

Welcome to the DNN Community Forums, your preferred source of online community support for all things related to DNN.
In order to participate you must be a registered DNNizen
HomeHomeDevelopment and...Development and...Building ExtensionsBuilding ExtensionsModulesModulesStrange Page Load ExceptionStrange Page Load Exception
Previous
 
Next
New Post
9/16/2016 12:29 PM
 
Curtis Cummings


Joined: 3/7/2016
Posts: 1

I've created a module for a client site, but trying to use it on their live server gives me a strange error. I can run the module locally without any problems.

Here's the stack trace:

otNetNuke.Services.Exceptions.PageLoadException: Object reference not set to an instance of an object. ---> System.NullReferenceException: Object reference not set to an instance of an object.
   at ASP.desktopmodules_lakecharlesnotes_view_ascx.__Render__control1(HtmlTextWriter __w, Control parameterContainer)
   at System.Web.UI.Control.RenderChildrenInternal(HtmlTextWriter writer, ICollection children)
   at System.Web.UI.Control.RenderControlInternal(HtmlTextWriter writer, ControlAdapter adapter)
   at System.Web.UI.Control.RenderChildrenInternal(HtmlTextWriter writer, ICollection children)
   at DotNetNuke.UI.Modules.ModuleHost.RenderContents(HtmlTextWriter writer)
   at System.Web.UI.WebControls.WebControl.Render(HtmlTextWriter writer)
   at System.Web.UI.Control.RenderControlInternal(HtmlTextWriter writer, ControlAdapter adapter)
   at System.Web.UI.Control.RenderChildrenInternal(HtmlTextWriter writer, ICollection children)
   at System.Web.UI.HtmlControls.HtmlContainerControl.Render(HtmlTextWriter writer)
   at System.Web.UI.Control.RenderControlInternal(HtmlTextWriter writer, ControlAdapter adapter)
   at System.Web.UI.Control.RenderChildrenInternal(HtmlTextWriter writer, ICollection children)
   at System.Web.UI.Control.RenderControlInternal(HtmlTextWriter writer, ControlAdapter adapter)
   at System.Web.UI.Control.RenderChildrenInternal(HtmlTextWriter writer, ICollection children)
   at System.Web.UI.HtmlControls.HtmlContainerControl.Render(HtmlTextWriter writer)
   at System.Web.UI.Control.RenderControlInternal(HtmlTextWriter writer, ControlAdapter adapter)
   at System.Web.UI.Control.RenderChildrenInternal(HtmlTextWriter writer, ICollection children)
   at System.Web.UI.HtmlControls.HtmlContainerControl.Render(HtmlTextWriter writer)
   at System.Web.UI.Control.RenderControlInternal(HtmlTextWriter writer, ControlAdapter adapter)
   at ASP.portals__default_skins_triumph_multi_column_ascx.__Render__control1(HtmlTextWriter __w, Control parameterContainer)
   at System.Web.UI.Control.RenderChildrenInternal(HtmlTextWriter writer, ICollection children)
   at System.Web.UI.Control.RenderControlInternal(HtmlTextWriter writer, ControlAdapter adapter)
   at System.Web.UI.Control.RenderChildrenInternal(HtmlTextWriter writer, ICollection children)
   at System.Web.UI.Control.RenderControlInternal(HtmlTextWriter writer, ControlAdapter adapter)
   at System.Web.UI.Control.RenderChildrenInternal(HtmlTextWriter writer, ICollection children)
   at System.Web.UI.HtmlControls.HtmlForm.RenderChildren(HtmlTextWriter writer)
   at System.Web.UI.HtmlControls.HtmlContainerControl.Render(HtmlTextWriter writer)
   at System.Web.UI.Control.RenderControlInternal(HtmlTextWriter writer, ControlAdapter adapter)
   at System.Web.UI.Control.RenderChildrenInternal(HtmlTextWriter writer, ICollection children)
   at System.Web.UI.HtmlControls.HtmlContainerControl.Render(HtmlTextWriter writer)
   at System.Web.UI.Control.RenderControlInternal(HtmlTextWriter writer, ControlAdapter adapter)
   at System.Web.UI.Control.RenderChildrenInternal(HtmlTextWriter writer, ICollection children)
   at System.Web.UI.Page.Render(HtmlTextWriter writer)
   at System.Web.UI.Control.RenderControlInternal(HtmlTextWriter writer, ControlAdapter adapter)
   at System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint)
   --- End of inner exception stack trace ---

I suppose the meat of the issue is that __Render__control1 method, but I'm not sure how that could be a problem with just my module. 

Any ideas or assistance is greatly appreciated :)
 
New Post
11/16/2017 12:52 PM
 
Mark Kamoski


Joined: 4/26/2017
Posts: 101

Curtis --

These thoughts come to my mind.

First, I would check to ensure that this skin...

portals__default_skins_triumph_multi_column_ascx

...exits on the deployment target.

Next, I would create a backup of the whole module, then I would pull out everything (all custom code) from the module, all except the absolute bare-bones blank-page hello-world code needed to run, then I would deploy that bare-bones boilerplate control and see if it works. If it does work then I would guess that the problem is in the code that I removed, and if it does not work then I would guess the code is in the module boilerplate code itself or the configuration. Pretty simple ideas, but the gist is-- create a new boilerplate module with zero custom code in it and see if that works, as a test.

My overall guess is that it is some kind of configuration/environment issue. Something in the system configuration-- the dotnetnuke config-- the site config-- permissions config-- or the like. Overall, I guess that something is on your test machine and that something is not on the prod machine. Sounds like something like that. Missing config setting. Missing skin. Permissions.

From the field, from my end, here is what I have found. it seems to me that it is hard to sync my Dev box root "web.config" and my Prod box root "web.config". I run my Dev box in a sandbox environment that does not include a full install of DotNetNuke, but rather isolates and provides a development and testing ground for my custom code, to ensure it can run properly with virtually zero dependency on DotNetNuke. Then, I package and deploy my custom code to my Stage and Prod environments to test within a complete DotNetNuke site. This works great for testing my code but the problem is that the root "web.config" is hard to sync from Dev to Prod, as only the customized settings need to be synced. Long story, but the moral is "it seems to me that custom config settings are hard to sync between dev and stage and prod root web config files".

HTH.

Thanks.

-- Mark Kamoski
 
New Post
11/16/2017 2:38 PM
 
Sebastian Leupold


Sebastian Leupold's Avatar

Sebastian Leupold's Avatar

Sebastian Leupold's Avatar

Sebastian Leupold's Avatar

www.dnnwerk.de
Joined: 3/8/2004
Posts: 46212
are both sites running same DNN version?
are both sites using same .Net version in IIS Application pool and being installed (see server info)?
Cheers from Germany,
Sebastian Leupold

dnnWerk - The DotNetNuke Experts   German Spoken DotNetNuke User Group

Speed up your DNN Websites with TurboDNN
 
 Page 1 of 1
Previous
 
Next
HomeHomeDevelopment and...Development and...Building ExtensionsBuilding ExtensionsModulesModulesStrange Page Load ExceptionStrange Page Load Exception


These Forums are dedicated to discussion of DNN Platform and Evoq Solutions.

For the benefit of the community and to protect the integrity of the ecosystem, please observe the following posting guidelines:

  1. No Advertising. This includes promotion of commercial and non-commercial products or services which are not directly related to DNN.
  2. No vendor trolling / poaching. If someone posts about a vendor issue, allow the vendor or other customers to respond. Any post that looks like trolling / poaching will be removed.
  3. Discussion or promotion of DNN Platform product releases under a different brand name are strictly prohibited.
  4. No Flaming or Trolling.
  5. No Profanity, Racism, or Prejudice.
  6. Site Moderators have the final word on approving / removing a thread or post or comment.
  7. English language posting only, please.
What is Liquid Content?
Find Out
What is Liquid Content?
Find Out
What is Liquid Content?
Find Out