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In my application I receive the following error: The context cannot be used while the model is being created. I'm not sure what this means. I have done everything as normal and usually it works but for this one it isnt. Below is my code: App.config: <connectionStrings> <add name="DatabaseContext" connectionString="Data Source=./SQLEXPRESS;Initial Catalog=ProjectCode;Integrated Security=SSPI;" providerName="System.Data.SqlClient" /> </connectionStrings> Products.cs: class Products { public int ProductID { get; set; } public string ProductName { get; set; } } DatabaseContext.cs: class DatabaseContext : DbContext { public DbSet<Products> Products { get; set; } } Program.cs: DatabaseContext context = new DatabaseContext(); try { var products = context.Products.ToList(); foreach (var item in products) { Console.WriteLine(item.ProductID + " : " + item.ProductName); } Console.ReadLine(); } The line is fails on is var products = context.Products.ToList(); Any ideas what could be causing this? I have set up 2 products in my database so it should be outputting them. EDIT Here is my whole App.config file: <?xml version="1.0" encoding="utf-8"?> <configuration> <configSections>  <section name="entityFramework" type="System.Data.Entity.Internal.ConfigFile.EntityFrameworkSection, EntityFramework, Version=4.3.1.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" /> </configSections> <connectionStrings> <add name="DatabaseContext" connectionString="Data Source

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