Value cannot be null. Parameter name: type

Jon Haakon Ariansen

Vote:

I'm trying to install a customer website on their production server, but get this suspicious error. Value cannot be null. Parameter name: type.

The spesification is Episerver CMS 6.2 installed on Windows 2008 R2. It works fine on my local machine, but not on the server.

Very often Pagetypebuilder is the problem. In my solution I use many versions of Pagetypebuilder (1.2, 1.3 and 1.3.1) I solve this using

I read somewhere that removing services and endpoints in System.ServiceModel in

web.config might reveal the real error, but that didn't change anything. I googled the

error and found similar errors, but couldn't figure out what was wrong:

http://www.dotnetnuke.com/Resources/Forums/forumid/77/threadid/341085/scope/posts.aspx

http://stackoverflow.com/questions/7987414/deserialization-error-value-cannot-be-null-parameter-name-type

http://www.velocityreviews.com/forums/t688837-value-cannot-be-null-parameter-name-type.html

The error is:

Exception Details: System.ArgumentNullException: Value cannot be null.
Parameter name: type

My stack trace is:

[ArgumentNullException: Value cannot be null.
Parameter name: type]
   System.Activator.CreateInstance(Type type, Boolean nonPublic) +9641126
   EPiServer.Framework.FrameworkInitialization.InitVirtualRoles() +251
   EPiServer.Framework.FrameworkInitialization.Initialize(InitializationEngine context) +53
   EPiServer.Framework.Initialization.InitializationEngine.InitializeModules() +343
   EPiServer.Framework.Initialization.InitializationEngine.Initialize(HostType hostType) +83
   EPiServer.Framework.Initialization.InitializationModule.Initialize(HostType hostType) +163
   EPiServer.Framework.Initialization.InitializationModule.FrameworkInitialization(HostType hostType) +68
   EPiServer.Global..ctor() +54
   ASP.global_asax..ctor() in c:\Windows\Microsoft.NET\Framework\v4.0.30319\Temporary ASP.NET Files\root\f6055ac7\72c3f8aa\App_global.asax.xtlxikgc.0.cs:0

[TargetInvocationException: Exception has been thrown by the target of an invocation.]
   System.RuntimeTypeHandle.CreateInstance(RuntimeType type, Boolean publicOnly, Boolean noCheck, Boolean& canBeCached, RuntimeMethodHandleInternal& ctor, Boolean& bNeedSecurityCheck) +0
   System.RuntimeType.CreateInstanceSlow(Boolean publicOnly, Boolean skipCheckThis, Boolean fillCache) +98
   System.RuntimeType.CreateInstanceDefaultCtor(Boolean publicOnly, Boolean skipVisibilityChecks, Boolean skipCheckThis, Boolean fillCache) +241
   System.Activator.CreateInstance(Type type, Boolean nonPublic) +69
   System.RuntimeType.CreateInstanceImpl(BindingFlags bindingAttr, Binder binder, Object[] args, CultureInfo culture, Object[] activationAttributes) +1136
   System.Activator.CreateInstance(Type type, BindingFlags bindingAttr, Binder binder, Object[] args, CultureInfo culture, Object[] activationAttributes) +111
   System.Activator.CreateInstance(Type type, BindingFlags bindingAttr, Binder binder, Object[] args, CultureInfo culture) +23
   System.Web.HttpRuntime.CreateNonPublicInstance(Type type, Object[] args) +60
   System.Web.HttpApplicationFactory.GetSpecialApplicationInstance(IntPtr appContext, HttpContext context) +259
   System.Web.Hosting.PipelineRuntime.InitializeApplication(IntPtr appContext) +253

[HttpException (0x80004005): Exception has been thrown by the target of an invocation.]
   System.Web.HttpRuntime.FirstRequestInit(HttpContext context) +9090044
   System.Web.HttpRuntime.EnsureFirstRequestInit(HttpContext context) +97
   System.Web.HttpRuntime.ProcessRequestNotificationPrivate(IIS7WorkerRequest wr, HttpContext context) +256

Anyone have any ideas?

In advance, thanks for your support!!! It is most helpfull!! :)

Kind regards,

Jon Haakon

#61930

Oct 06, 2012 23:17

Vote:

Is you local machine also running the site on IIS7?

#61931

Oct 07, 2012 12:02

Jon Haakon Ariansen

Vote:

yes it is

#61933

Oct 08, 2012 9:47

Vote:

Can you see if EPiServerFramework.config is modified on startup and linked into web.config correctly?

If you install a plain "public templates" site on the server... Does it run?

#61934

Oct 08, 2012 9:54

Jon Haakon Ariansen

Vote:

Thank you so much for your support, Johan! I really appreciate it! ;)

After talking to some colleagues, I got a tip that some virtual roles was deprecated.

After removing the virtual roles, it worked.

#61941

Oct 08, 2012 12:55

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Value cannot be null. Parameter name: type