Hi guys,

I have a development environment set up for developing DNN modules. In the Solution I have already two website projects included:
04.09.00_Development
04.09.00_Staging

I now want to install 05.00.00 the same way to be able to develop side-by-side on different versions depending on client needs. However, using the new version 5 install package and starting the InstallWizard.aspx it fails with the following error:

System.NullReferenceException: Object reference not set to an instance of an object. at DotNetNuke.UI.Utilities.MSAJAX.Serialize(Object Obj) at DotNetNuke.UI.Utilities.ClientAPI.SerializeClientVariableDictionary(Page objPage, Dictionary`2 objDict) at DotNetNuke.UI.Utilities.ClientAPI.CAPIPreRender(Object Sender, EventArgs Args) at System.Web.UI.Control.OnPreRender(EventArgs e) at System.Web.UI.HtmlControls.HtmlInputHidden.OnPreRender(EventArgs e) at System.Web.UI.Control.PreRenderRecursiveInternal() at System.Web.UI.Control.PreRenderRecursiveInternal() at System.Web.UI.Control.PreRenderRecursiveInternal() at System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint)

I double-checked if I did something wrong 100 times and even installed a 04.09.00 just to make sure. The 04.09.00 install fine without problems though. I also tried using the 05.00.00 website from a blank solution (the old-fashioned way) to make sure that my setup didn't have anything to do with it.

Could someone maybe try to install DNN 05.00.00 from the ASP.NET Development Server?

Even better.... does someone have a solution to this issue?

For the record... I have not yet tried to install a 04.09.01 and upgrade it to a 05.00.00 using the Development Server.... It is 4:30 in the morning, so bear with me ;-)

i have the same problem installing a empty version of 5.0

created a virtual folder and did set all permissions as explained in the installion document.
then i went to the wizard and after checking all optional modules the error showed up.

[NullReferenceException: Object reference not set to an instance of an object.]
   DotNetNuke.Entities.Portals.PortalSettings..ctor(Int32 tabID, PortalAliasInfo objPortalAliasInfo) +41
   DotNetNuke.HttpModules.UrlRewriteModule.OnBeginRequest(Object s, EventArgs e) +2955
   System.Web.SyncEventExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute() +68
   System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously) +75
 

I'll try and search how to reset the whole installation, until now i can't get back to the wizard.
Anyone knows how the installation can be resetted?

do you have 2 installations in a single solution? I do not understand, usually installations should be separated.

Raymond, if you have issues with initial installation, it is easiest to drop database and restart from scatch, otherwise you might have issues with leftovers.