The ViewData item that has the key ‘Name’ is of type System

Question

I'm new to asp mvc and Developing a Web Application in which i have told to create Roles I am using Identity framework The Error Is Given Dont Know What to with That

The ViewData item that has the key 'Name' is of type 'System.String' but must be of type 'IEnumerable<SelectListItem>'.

 

this is the Code

 

Controller

[AllowAnonymous]
public ActionResult Register()
{
ViewBag.Name = new SelectList(_db.Roles.ToList(),"Name","Name");
return View();
}

View Code

<div class="form-group">
@Html.LabelFor(m => m.Name, new { @class = "col-md-2 control-label" })
<div class="col-md-10">
@Html.DropDownListFor(m => m.Name,ViewBag.Name as SelectList ,"--Select Role--",new { @class = "form-control" })
</div>
</div>