MVC 4 template with custom membership provider - asp.net-membership

Question

What I'm wanting to do is use the default MVC 4 template that just shipped with Visual Studio 2012 as base for my new project. However I want to replace the SQL provider with custom membership provider so I can access my RavenDB to get my users. I've implemented the custom provider as I have before but the WebSecurity methods are throwing the following exception.
This line of code:
ViewBag.HasLocalPassword =
OAuthWebSecurity.HasLocalAccount(WebSecurity.GetUserId(User.Identity.Name));
Specifically the method:
WebSecurity.GetUserId
Is throwing this exception:
You must call the "WebSecurity.InitializeDatabaseConnection" method
before you call any other method of the "WebSecurity" class. This call
should be placed in an _AppStart.cshtml file in the root of your site.
Now I cannot call InitializeDatabaseConnection because my provider isn't a SQL provider. This method expects a SQL provider and a SQL connection string. Is this a common problem or am I missing something? Why does WebSecurity have to be initialized and why does it expect to only be connected using a SQL provider?
Am I going to have to just change the code to not use the WebSecurity class?
I've been at this all day and I'm pretty tired. I hope I haven't overlooked something simple. Maybe one more rum and coke will help...
Update: 08/19/2012
I decompiled the GetUserId method and found the only reason it's failing is because of the VerifyProvider call.
public static int GetUserId(string userName)
{
WebSecurity.VerifyProvider();
MembershipUser user = Membership.GetUser(userName);
if (user == null)
return -1;
else
return (int) user.ProviderUserKey;
}
private static ExtendedMembershipProvider VerifyProvider()
{
ExtendedMembershipProvider membershipProvider = Membership.Provider as ExtendedMembershipProvider;
if (membershipProvider == null)
throw new InvalidOperationException(WebDataResources.Security_NoExtendedMembershipProvider);
membershipProvider.VerifyInitialized();
return membershipProvider;
}
Now the only reason it's failing in the VerifyProvider method is because of the call to VerifyInitialized which I cannot override in my membership provider. Also if it's not calling my provider then I'm not sure what code is being called when VerifyInitialized is processed.
internal virtual void VerifyInitialized()
{
}
I'm removing all the other membership providers in the Web.Config. At least I think I am. Here is the entry.
<membership defaultProvider="RavenMembershipProvider">
<providers>
<clear />
<add name="RavenMembershipProvider" type="BigGunsGym.Infrastructure.Providers.RavenMembershipProvider" />
</providers>
</membership>

Answer 1

Turns out I had my provider inheriting from SimpleMembershipProvider instead of ExtendedMembershipProvider. I thought it would be OK since SimpleMembershipProvider inherits ExtendedMembershipProvider but it did not work.
After changing my provider to inherit from ExtendedMembershipProvider the error went away.

Answer 2

I also had the same problem, after creating a new Action to create users....
action was...
public ActionResult CreateUsers()
{
string username = "blah blah auto create";
string password = "blah blah auto create";
WebSecurity.CreateUserAndAccount(username, password);
}
but it just needed the filter attrib adding
[InitializeSimpleMembership]
public ActionResult CreateUsers()
{
string username = "blah blah auto create";
string password = "blah blah auto create";
WebSecurity.CreateUserAndAccount(username, password);
}