The type RoleStore<IdentityRole> is not assignable to service IRoleStore<IRole>

asp.net-mvc-5, autofac, dependency-injection, entity-framework-6

Solution

Bit late to the party but this worked for me with Autofac:

builder.RegisterType<RoleStore<IdentityRole>>().As<IRoleStore<IdentityRole, string>>();

My full module for reference:

builder.RegisterType<UserStore<ApplicationUser>>().As<IUserStore<ApplicationUser>>();
builder.RegisterType<RoleStore<IdentityRole>>().As<IRoleStore<IdentityRole, string>>();
builder.RegisterType<ApplicationUserManager>();
builder.RegisterType<ApplicationRoleManager>();

I'm using wrappers for the UserManager and RoleManager

public class ApplicationUserManager : UserManager<ApplicationUser>
{
    public ApplicationUserManager(IUserStore<ApplicationUser> store)
        : base(store)
    {
    }
}

public class ApplicationRoleManager : RoleManager<IdentityRole>
{
    public ApplicationRoleManager(IRoleStore<IdentityRole, string> roleStore)
        : base(roleStore)
    {            
    }       
}

Problem

I'm trying to set up dependency injection with Autofac for project using MVC5 and EF6. I'm having a hard time figuring out how to decouple correctly the EntityFramework.RoleStore<EntityFramework.IdentityRole> implementation. I would like have dependency only on Identity.IRoleStore<Identity.IRole> but I'm aware that for generic classes I need to specify the concrete implementation, not the interface. This is what I tried: ``` builder.RegisterType<IdentityRole>().As<IRole>(); builder.RegisterType<RoleManager<IRole>>(); builder.RegisterType<RoleStore<IdentityRole>>().As<IRoleStore<IRole>>(); builder.Register(c => new RoleManager<IRole>(c.Resolve<IRoleStore<IRole>>())); ``` The full error message: The type 'Microsoft.AspNet.Identity.EntityFramework.RoleStore`1[Microsoft.AspNet.Identity.EntityFramework.IdentityRole]' is not assignable to service 'Microsoft.AspNet.Identity.IRoleStore`1[[Microsoft.AspNet.Identity.IRole, Microsoft.AspNet.Identity.Core, Version=1.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35]]'.

Original source