I'm running dnn 3.1.1 on Windows 2003, and I get the following error on installing the PA:

StartJob

Registering DesktopModule

Failure

ExceptionSystem.ArgumentNullException: Value cannot be null. Parameter name: type at System.Activator.CreateInstance(Type type, Boolean nonPublic) at DotNetNuke.Framework.Reflection.CreateObject(String TypeName, String CacheKey) at DotNetNuke.Modules.Admin.ResourceInstaller.PaDnnInstaller_V3.GetDesktopModuleSettings(DesktopModuleInfo objDesktopModule, PaFolder Folder) at DotNetNuke.Modules.Admin.ResourceInstaller.PaDnnInstallerBase.RegisterModules(PaFolder Folder, ArrayList Modules, ArrayList Controls) at DotNetNuke.Modules.Admin.ResourceInstaller.PaDnnInstallerBase.Install(PaFolderCollection folders) at DotNetNuke.Modules.Admin.ResourceInstaller.PaInstaller.Install()

Do you have any idea why this might be?

Many thanks

Barry

Hi HansPeter, from my host settings page:

DotNetNuke Version: The DotNetNuke application version you are running	3.1.1
Data Provider: The provider name which is identified as the default data provider in the web.config file	SqlDataProvider
.NET Framework: The .NET Framework version which the application is running on - specified through IIS	1.1.4322.2032

Following your question, I have just looked at the log viewer!  There are loads of exceptions there, right from the very beginning, which was a few days ago, and there are too many to be sure that one of the earlier errors isn't having a knok-on effect and causing this one.

So now I've discovered this log viewer, I'm going to start again from scratch, and I'll load the blog module as one of the first things that I do so that I can be sure that I get 'clean' errors

Thanks for your patience.

Barry

I've been trying to run dotnetnuke across two servers (web & db) that are not in a domain. When using classic ASP I've been using windows authorisation in SQL Server and employing impersonation and mirrored accounts to allow communication between the two servers to take place securely.

It appears from the log that I've been having more errors than I realised, and that impersonation using ASP.NET is more complicated than I'd imagined, particularly with respect to passing the correct credentials from the web server to the db server.

This evening I set up a site on the db server and configured DNN as recommended (mixed mode, anonymous) and your Blog module loaded perfectly, and I suspect that any other modules that I've previously had trouble with will now install cleanly.

Sorry to have troubled you.

Barry