private void CreateAdminIfNeeded()
    {
        // Get Admin Account
        string AdminUserName = ConfigurationManager.AppSettings["AdminUserName"];
        string AdminPassword = ConfigurationManager.AppSettings["AdminPassword"];
        string fileName = HttpContext.Server.MapPath(@"~/Images/noImg.png");

        byte[] imageData = null;
        FileInfo fileInfo = new FileInfo(fileName);
        long imageFileLength = fileInfo.Length;
        FileStream fs = new FileStream(fileName, FileMode.Open, FileAccess.Read);
        BinaryReader br = new BinaryReader(fs);
        imageData = br.ReadBytes((int)imageFileLength);
        // See if Admin exists
        var objAdminUser = UserManager.FindByEmail(AdminUserName);

        if (objAdminUser == null)
        {
            //See if the Admin role exists. In this part I am getting error
            if (!RoleManager.RoleExists("Administrator"))
            {
                // Create the Admin Role (if needed)
                IdentityRole objAdminRole = new IdentityRole("Administrator");
                RoleManager.Create(objAdminRole);
            }

            // Create Admin user
            var objNewAdminUser = new ApplicationUser { UserName = AdminUserName, Email = AdminUserName, UserPhoto = imageData };
            var AdminUserCreateResult = UserManager.Create(objNewAdminUser, AdminPassword);
            // Put user in Admin role
            UserManager.AddToRole(objNewAdminUser.Id, "Administrator");
        }
    }
    #endregion

//See if the Admin role exists.
            if (!RoleManager.RoleExists("Administrator"))
            {
                // Create the Admin Role (if needed)
                IdentityRole objAdminRole = new