Hi,

I thought i had posted something on my problem before but cannot find it, i've been away from DNN since 3.x so forgive me if this is an easy problem to fix.

I've installed 4.7 & 4.8 and ran into the same problem, basically i had problem getting the install wizard to work unless i added the anonomous account to the permissions on the dnn directory. Once i had done this it seemed to install ok and i could view the default site fine using localhost.

However if i try to access the site using the hostname from the machine or another client i get the following error :

Server Error in '/' Application.
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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.Entities.Portals.PortalSettings.GetPortalSettings(Int32 TabId, PortalAliasInfo objPortalAliasInfo) +91
   DotNetNuke.Entities.Portals.PortalSettings..ctor(Int32 tabId, PortalAliasInfo objPortalAliasInfo) +83
   DotNetNuke.HttpModules.UrlRewriteModule.OnBeginRequest(Object s, EventArgs e) +3305
   System.Web.SyncEventExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute() +92
   System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously) +64

 The webservice is connected to a domain and there's an ISA proxy server, i've unconfigure the web browser for proxy (this has been a problem in the past with some of our applications), but the fault still remains.

The anonymous access i had to grant bothers me as this is not in the installation instructions which i've always found spot on. I'm looking to evaluate DNN latest rev as the base for a complete re-design of our human testing and measurement application and would appriecate some help on this issue.

As a second question, there seems to be a few books out there now on DNN, any recommendations ?

Thanks & Happy New Year

John Kattenhorn

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Version Information: Microsoft .NET Framework Version:2.0.50727.42; ASP.NET Version:2.0.50727.42