MVC 5 ViewModel not working as it was in MVC 4

Question

I will try to get straight to the point. I had some help building a ViewModel here on StackOverflow. It worked fine in MVC 4 but now that I am converting the application to MVC 5 it is not working. Nothing has changed in way of the code. I have a _navigation.cshtml which is a partial that is rendered in my Layout.cshtml and the error is within the For Loops in that Partial. This same code is working fine in MVC 4. Here is the code:

My error is in the partial page during the for loop and I get the error on Ingredient in the line:

@foreach (Ingredient ingredient in Model.Ingredients)

also in the same place on any other for loop in the same place. The error says:

The type or namespace name 'Recipe' could not be found (are you missing a using directive or an assembly reference?)

Here is my code:

Models/Ingredient.cs

    using System;
    using System.Collections.Generic;
    using System.Linq;
    using System.Web;

    namespace XXX.Models
    {
        public class Ingredient
        {
            public int IngredientID { get; set; }
            public string IngredientNameEs { get; set; }
        }
    }

Models/Recipe.cs

    using System;
    using System.Collections.Generic;
    using System.Linq;
    using System.Web;

    namespace XXX.Models
    {
        public class Recipe
        {
            public int RecipeID { get; set; }
            public string RecipeNameEs { get; set; }
        }
    }

Models/IdentityModel.cs

    using System;
    using System.Collections.Generic;
    using System.ComponentModel.DataAnnotations.Schema;
    using System.Data.Entity;
    using System.Data.Entity.ModelConfiguration.Conventions;
    using System.Linq;
    using System.Web;
    using Microsoft.AspNet.Identity.EntityFramework;
    using XXX.Models;

    namespace XXX.Models
    {
        // You can add profile data for the user by adding more properties to your ApplicationUser class, 
        // http://go.microsoft.com/fwlink/?LinkID=317594 for more.
        public class ApplicationUser : IdentityUser
        {
        }

        public class ApplicationDbContext : IdentityDbContext<ApplicationUser>
        {
            public ApplicationDbContext(): base("DefaultConnection")
            {
            }

            public DbSet<Ingredient> Ingredients { get; set; }
            public DbSet<Recipe> Recipes { get; set; }

        }
    }

ViewModels/NavigationViewModel.cs

    using System;
    using System.Collections.Generic;
    using System.Linq;
    using System.Web;
    using XXX.Models;

    namespace XXX.ViewModels
    {
        public class NavigationViewModel
        {
            public IEnumerable<Ingredient> Ingredients { get; set; }
            public IEnumerable<Recipe> Recipes { get; set; }
        }
    }

Controllers/PartialsController.cs

    using XXX.Models;
    using XXX.ViewModels;
    using System;
    using System.Collections.Generic;
    using System.Data;
    using System.Data.Entity;
    using System.Linq;
    using System.Web;
    using System.Web.Mvc;

    namespace XXX.Controllers
    {
        public class PartialController : Controller
        {
            private ApplicationDbContext db = new ApplicationDbContext();

             public ActionResult Navigation()
             {
             NavigationViewModel viewModel;

             viewModel = new NavigationViewModel();
             viewModel.Ingredients = db.Ingredients.Where(i => i.IsProduct != false).ToList();
             viewModel.Recipes = db.Recipes.ToList();

             return PartialView("_Navigation", viewModel);
             }
         }
    }

Partials/_Navigation.cshtml (Asterisks indicate error near Ingredient and Recipe in For Loop)

@model XXX.ViewModels.NavigationViewModel
@using XXX.Models
//edited for brevity..
   <li class="has-dropdown">@Html.ActionLink(XXX.Views.Shared.CultureSwap.Products, "Products", "Ingredient")
        <ul class="dropdown">
            @*//From NavigationViewModel print out each Product*@
            @foreach (*Ingredient* ingredient in Model.Ingredients)
            {
                <li><a href="/Ingredient/Products/#@ingredient.IngredientNameEs">@ingredient.IngredientNameEs</a></li>
    }
        </ul>
    </li>

    <li class="divider"></li>
    <li class="has-dropdown">@Html.ActionLink(XXX.Views.Shared.CultureSwap.Recipes, "List", "Recipe")
        <ul class="dropdown">
            @foreach (*Recipe* recipe in Model.Recipes)
            {
                <li><a href="/Recipe/List/#@recipe.RecipeNameEs">@recipe.RecipeNameEs</a></li>
            }
        </ul>
    </li>

Again the errors read:

The type or namespace name 'Ingredient' could not be found (are you missing a using directive or an assembly reference?)

The type or namespace name 'Recipe' could not be found (are you missing a using directive or an assembly reference?)

Here is a screenshot of the error in Visual Studio Next to the same code with no errors:

Answer 1

There is a web.config file located in the Views directory. In it the namespaces that should be available for the views are listed. Did you add a namespace to the views web.config in your mvc4 proj that you are now missing in the mvc5 proj?

The listing in the views web.config is a kind of global using statements that applies to all views.