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HomeHomeGetting StartedGetting StartedInstalling DNN ...Installing DNN ...Too Many Redirects ErrorToo Many Redirects Error
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5/26/2010 7:40 AM
 
Glenn Goodrich

Joined: 2/10/2004
Posts: 14
Thanks for the reply, Bruce.

So there is a GENERAL EXCEPTION  in the EventLog table:

System.Exception: Unhandled Error:  ---> System.NullReferenceException: Object reference not set to an instance of an object.     at DotNetNuke.Services.Localization.Localization.GetEnabledLocales()     at DotNetNuke.Common.Globals.NavigateURL(Int32 TabID, Boolean IsSuperTab, PortalSettings settings, String ControlKey, String Language, String[] AdditionalParameters)     at DotNetNuke.Common.Globals.NavigateURL(Int32 TabID, Boolean IsSuperTab, PortalSettings settings, String ControlKey, String[] AdditionalParameters)     at DotNetNuke.Common.Globals.NavigateURL(Int32 TabID, PortalSettings settings, String ControlKey, String[] AdditionalParameters)     at DotNetNuke.Services.Syndication.RssHandler.GetRssItem(SearchResultsInfo SearchItem)     at DotNetNuke.Services.Syndication.RssHandler.PopulateChannel(String channelName, String userName)     at DotNetNuke.Services.Syndication.RssHttpHandlerBase`3.System.Web.IHttpHandler.ProcessRequest(HttpContext context)     at System.Web.HttpApplication.CallHandlerExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute()     at System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously)     --- End of inner exception stack trace

I'll start Googling this, but if you have any ideas why this is happening, please let me know.

Thanks,
Glenn
 
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5/26/2010 10:01 AM
 
Bruce Chapman


www.dnnsoftware.com
Joined: 12/7/2005
Posts: 792
This error generally points to a null 'portalsettings' object, which can be one of a few things.   The 'portalsettings' object is stored in the request context when the request is made, and basically is DNN working out which portal a particular request belongs to.  In this case, it hasn't worked out which request and the call is failing.

As it is in the RSS Handler, I would try and remove the RSS handler from the home page.  I've never done that before, but something you could try would be to comment out the RSS handler in the web.config file.  Hopefully this would cause a 404 on the RSS handler instead of an error like this.  That's just a guess though.
 
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5/26/2010 10:13 AM
 
Glenn Goodrich

Joined: 2/10/2004
Posts: 14
I've found a couple of posts that claim this is due to not running the site in an app pool that is using the Classic ASP.NET pipeline.  I have asked my webhost to change it, but am not getting any response.

BTW, if anyone is thinking about using webhost4life as their webhost, DON'T.  They recently changed their support to be overseas and it is a nightmare.

Thanks for the reply, Bruce.
 
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5/26/2010 9:00 PM
 
Bruce Chapman


www.dnnsoftware.com
Joined: 12/7/2005
Posts: 792
Glenn Goodrich wrote:
I've found a couple of posts that claim this is due to not running the site in an app pool that is using the Classic ASP.NET pipeline.  I have asked my webhost to change it, but am not getting any response.

 
I think you mean by that statement that you have to run the site in classic mode?  That's simply not true at all, and sounds to me like guessing and speculation.  There may be something wrong with the RSS handler, I couldn't be certain.  Like I said, I would try commenting out the RSS handler in the web.config file and see if that makes a difference.  A 404 on that urls is easier to deal with than a application-wide excpetion like that.
 
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5/27/2010 12:57 AM
 
William Severance


www.wesnetdesigns.com
Joined: 2/18/2005
Posts: 3253
You mention of "My webhost recently 'upgraded' the hardware for our DNN web server" and DNN version 4.9.x brought to mind the first time I had ever encountered the infinite redirect issue when moving several of my older development sites from Windows XP/IIS 6 to Windows 7/IIS 7.5 this evening. There seems to be a problem in DNN 4.9.x when loading the System.Web.Extensions dll version 1.0.6xxxxx.0 under medium trust when System.Web.Extensions dll version 3.5.0.0 has been installed in the global assembly cache (GAC). In fact, there is an intentional redirect back to the base url whenever an exception is thrown containing the phrase "System.Web.Extensions".

Let's try the following:

1. Make a backup of your site's web.config file. VERY IMPORTANT incase this does not work!

2. Search for ALL occurances of the following reference in web.config:
           System.Web.Extensions, Version=1.0.61025.0
    and replace it with the following:
           System.Web.Extensions, Version=3.5.0.0

3. Be sure that you have replaced ALL of the above references then re-save/re-upload the modified web.config back to the site's root folder.

4. Remove the file System.Web.Extensions.dll from your site's \bin folder to a temporary location.

5. Navigate to the site and test if the issue has been resolved.

6. If the issue was not resolved, revert to your web.config backup and restore the System.Web.Extensions.dll to the \bin folder.

7. If the issue was resolved, don't thank me - thank the author of these two blog posts which resolved my issue and hopefully yours:

http://www.bestwebsites.co.nz/dotnetn...
http://www.bestwebsites.co.nz/dotnetn...
Bill, WESNet Designs
Team Lead - DotNetNuke Gallery Module Project (Not Actively Being Developed)
Extensions Forge Projects . . .
Current: UserExport, ContentDeJour, ePrayer, DNN NewsTicker, By Invitation
Coming Soon: FRBO-For Rent By Owner
 
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