Entity Type Has No Key Defined

Question

Another \'Entity Type \'x\' has no key defined\' question, but I\'ve set the [Key] attribute on a property so I\'m a bit confused.

Here\'s my entity and con

Answer 1

To help clarify, this line:

public string GMCNumber;

needs to become:

public string GMCNumber { get; set; }

Answer 2

You need to change GMCNumber to a property not a field.

Answer 3

I ran into this post after facing a similar issue today. The problem was that I was attempting to create the scaffold after adding the [Key] attribute to my model and without compiling. Once I compiled with the [Key] attribute the scaffolding generated just fine.

Answer 4

I encountered the same error message when I had defined the property as private.