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DNN 9.1.1 on SQL 2019

Forums > SQL and SQL Server
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John Taylor

New Around Here



Posts:4
New Around Here




11/9/2020 10:00 AM

    We're not in a position to upgrade DNN just yet but would like to move from SQL 2014 to 2019 on the database side.  After restoring the database and "fixing" the logins, I can connect with SQLCMD using the SQL credentials and run a query but DNN is having an issue.  I am the DBA and know next to nothing about DNN other than updating the server name in the web.config file.  

    We're getting this error:

    Exception information: 
        Exception type: NullReferenceException 
        Exception message: Object reference not set to an instance of an object.
       at DotNetNuke.HttpModules.OutputCaching.OutputCacheModule.OnResolveRequestCache(Object sender, EventArgs e)
       at System.Web.HttpApplication.SyncEventExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute()
       at System.Web.HttpApplication.ExecuteStepImpl(IExecutionStep step)
       at System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously)

    Any thoughts or suggestions would be helpful.  

    Thanks






    Brian Dukes

    Advanced Member



    Posts:133
    Advanced Member




    11/9/2020 10:10 AM

      Make sure there's an entry in the PortalAlias table with the domain/URL you're using to access the site.

      DNN partner specializing in custom, enterprise DNN development https://engagesoftware.com/showcase





      John Taylor

      New Around Here



      Posts:4
      New Around Here




      11/9/2020 12:04 PM

        Well, that seems to be the issue.   I was restoring a production db back up to create the test system db on the new sql server and the URL of the test server was not in the portalalias table there.  My resolution was to backup our existing test system (which has the correct URLs) and restore it to the new server.  Worked like a champ.  Now, to find a "how to create a test system" document.  

        Thanks for the quick and very helpful response!

        jmt

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