DNN Forums

Ask questions about your website to get help learning DNN and help resolve issues.
Prev
Next

Upgrade from DNN 9.03.02 to 9.05.00 GetSkin error

Forums > Upgrading DNN Platform
Sort:
You are not authorized to post a reply.





Andrei Coman

New Around Here



Posts:7
New Around Here




4/3/2020 11:18 AM

    Hi, 
    I have this error when the wesite is loading:
    Object reference not set to an instance of an object.
         at DotNetNuke.UI.Skins.Skin.GetSkin(PageBase page)
       at DotNetNuke.Framework.DefaultPage.OnInit(EventArgs e)
       at System.Web.UI.Control.InitRecursive(Control namingContainer)
       at System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint)

    after a DNN upgrade from version 9.03.02 to 9.05.00
    What can I do to receive more detalis on the error? What can I try more?
    The website was build on version 7 many years ago, but I was able to fix all the upgrade issues until now.
    Thank you,
    Andrei






    Joe Craig

    Veteran Member



    Posts:1236
    Veteran Member




    4/3/2020 2:00 PM
      This possibly could indicate a skin problem.
      Assuming that the site loads, try creating a new page and assigning it an Xcillion page. If that works, then the problem is in your skin.
      More error logs are at portals/_default/logs, and the log4net configuration file in in the installation's root directory. You may need to alter that to increase the detail of the logging.
      Joe Craig
      DNN MVP
      Patapsco Research Group





      Andrei Coman

      New Around Here



      Posts:7
      New Around Here




      4/3/2020 3:08 PM

        Hi Joe, 

        Thank you for your response. The site is not loading, even the login.aspx page gave this 500 internal server error. I can not create a new page.

        The error I found it in with the exception logged in eventlog table.






        Joe Craig

        Veteran Member



        Posts:1236
        Veteran Member




        4/3/2020 3:56 PM
          Are you using a custom skin?
          Joe Craig
          DNN MVP
          Patapsco Research Group





          Joe Craig

          Veteran Member



          Posts:1236
          Veteran Member




          4/3/2020 4:01 PM
            What version of .NET?

            Did you look at log4net files?
            Joe Craig
            DNN MVP
            Patapsco Research Group





            Andrei Coman

            New Around Here



            Posts:7
            New Around Here




            4/6/2020 3:06 AM

              Hi Joe,

              Yes we are usign a custom skin. I looked also on log4net logsand I found also this error: 

              [Thread:43][ERROR] DotNetNuke.Services.Exceptions.Exceptions - DotNetNuke.Services.Exceptions.PageLoadException: Unhandled error loading page. ---> System.TypeLoadException: Method 'CreateModuleControl' in type 'DotNetNuke.Web.Mvc.MvcModuleControlFactory' from assembly 'DotNetNuke.Web.Mvc, Version=8.0.3.5, Culture=neutral, PublicKeyToken=null' does not have an implementation.
                 at System.Signature.GetSignature(Void* pCorSig, Int32 cCorSig, RuntimeFieldHandleInternal fieldHandle, IRuntimeMethodInfo methodHandle, RuntimeType declaringType)

              Before starting the upgrade process I had 2 errors:

              - one regarding the framework version (which I fixed upgrading to .net framework 4.7.2 )

              - one regading DotNetNuke.Web.Mvc.dll (which I fixed by replacing the dll file with an old version.) This kind of fixed I found on forums and I used I tink on all DNN 9 versions upgrade.

              I overwrite the DNN MVC file with the newer version from the upgrade package and now I have this error:

              [NullReferenceException: Object reference not set to an instance of an object.]
   DotNetNuke.Web.Mvc.MvcHttpModule.SuppressXFrameOptionsHeaderIfPresentInConfig()

              How can I fixed this?






              Andrei Coman

              New Around Here



              Posts:7
              New Around Here




              4/6/2020 11:19 AM
                Hi Joe,
                I was able to fix the issue with the solution on this page
                https://dnntracker.atlass....net/browse/DNN-8869

                by removing clear tag from web.config file in the customHeaders section.





                Joe Craig

                Veteran Member



                Posts:1236
                Veteran Member




                4/8/2020 7:33 AM
                  Excellent!
                  Joe Craig
                  DNN MVP
                  Patapsco Research Group
                  You are not authorized to post a reply.

                  These Forums are dedicated to the discussion of DNN Platform.

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

                  1. If you have (suspected) security issues, please DO NOT post them in the forums but instead follow the official DNN security policy. 
                  2. No Advertising. This includes the promotion of commercial and non-commercial products or services which are not directly related to DNN.
                  3. 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.
                  4. Discussion or promotion of DNN Platform product releases under a different brand name are strictly prohibited.
                  5. No Flaming or Trolling.
                  6. No Profanity, Racism, or Prejudice.
                  7. Site Moderators have the final word on approving / removing a thread or post or comment.
                  8. English language posting only, please.

                  Would you like to help us?

                  Awesome! Simply post in the forums using the link below and we'll get you started.

                  Get Involved