C# – No context type found in the assembly. ASP.NET MVC4

Was following this tutorial here (wanted a database of customers instead of movies as per tutorial):
http://www.asp.net/mvc/tutorials/mvc-4/getting-started-with-aspnet-mvc4/adding-a-new-field-to-the-movie-model-and-table

However when I attempt to run migrations commands the following error is encountered:
"The context type 'MvcCustomer.Models.CustomerDbContext' was not found in the assembly 'MvcVault'."

This is my customer model:

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Data.Entity;
namespace MvcVault.Models
{
    public class Customer
    {
        public int ID { get; set; }
        public string FirstName { get; set; }
        public string LastName { get; set; }
        public DateTime Born { get; set; }
        public int Telephone { get; set; }
        public string Email { get; set; }
    }

    public class CustomerDBContext : DbContext
    {
        public DbSet<Customer> Customers { get; set; }
    }
}

I've tried various combinations of that first migrations command, including:

"Enable-Migrations -ContextTypeName MvcCustomer.Models.CustomerDbContext"

"Enable-Migrations -ContextTypeName MVCCustomer.Models.CustomerDbContext"

Anyway, I'm completely new to all of this and am at a loss. I was able to successfully complete these tutorials when coding up the Movies model following the tutes, and have no idea why its not working if I change the name, etc…

Any help would be appreaciated! Thank you kindly 🙂