title: cannot convert from 'method group' to 'Func<ApplicationRoleManager> in asp mvc identity
body: <p>this code for create a role in database .</p>
  
  <p>IdentityConfig: </p>
  
  <pre><code>public class ApplicationRoleManager : RoleManager&lt;IdentityRole&gt;
  {
      public ApplicationRoleManager(RoleStore&lt;IdentityRole&gt; roleStore)
          : base(roleStore)
      {
      }
  
      public static ApplicationRoleManager Create(IOwinContext context)
      {
          var roleStore = new RoleStore&lt;IdentityRole&gt;(context.Get&lt;ApplicationDbContext&gt;());
          return new ApplicationRoleManager(roleStore);
      }
  }
  </code></pre>
  
  <p>but in Startup.Auth show me error :</p>
  
  <p><a href="https://i.stack.imgur.com/iy52C.png" rel="nofollow"><img src="https://i.stack.imgur.com/iy52C.png" alt="enter image description here"></a></p>
  
  <p>How can I solve this error ?</p>
  
  <p><strong>Edit</strong></p>
  
  <pre><code>public void Configuration(IAppBuilder app)
  {
      ConfigureAuth(app);
  }
  </code></pre>