Entity Framework - Invalid Column Name '*_ID"

Question

I\'ve narrowed this down to some issue between Code First and Database first EF, but I\'m not sure how to fix it. I\'ll try to be as clear as I can, but I honestly am missin

Answer 1

In my case I was incorrectly defining a primary key made up of two foreign keys like this:

HasKey(x => x.FooId);
HasKey(x => x.BarId);

HasRequired(x => x.Foo)
    .WithMany(y => y.Foos);
HasRequired(x => x.Bar);

The error I was getting was, "invalid column name Bar_ID".

Specifying the composite primary key correctly fixed the problem:

HasKey(x => new { x.FooId, x.BarId });

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