I'm using EF6

And it happens that when I use Update-Database it does not update my database.

For example

I have my model:

public class Cliente 
{
   public int Id {get;set}
   public string Nome {get;set;}
}

If I add a new property:

public string CNPJ {get;set;}

And run Update-Database or Update-Database -force It does not update, and when it accesses the error and informs to do the migrations

What I already did was:

enable-migrations
add-migration InitialCreate

In the file of Configuration set AutomaticMigrationsEnabled :

   public Configuration()
    {
        AutomaticMigrationsEnabled = true;
    }