title: .NET 4.0 and EF 6.1.3 versus .NET 4.6.1 and EF 6.2
body: <p>This related to a Windows Forms project and I am using Visual Studio 2012. The programming language is C#.</p>
  
  <p>I created a project with .NET 4.0 and EF 6.1.3. The project was stable and worked properly. I was told I had to upgrade to .NET 4.6.1. NuGet said I had to upgrade EF to 6.2.0. I am now dealing with the following error:</p>
  
  <blockquote>
    <p>System.MissingMethodException: Method not found:
    'System.Data.Entity.ModelConfiguration.Configuration.PrimitivePropertyConfiguration
    System.Data.Entity.ModelConfiguration.Configuration.PrimitivePropertyConfiguration.HasDatabaseGeneratedOption(System.Nullable`1)'.</p>
  </blockquote>
  
  <p>When I rollback to .NET 4.0 and EF 6.1.3, then the project works as it originally did.</p>
  
  <p>What do I need to do to get my project to work in .NET 4.6.1 with EF 6.2.0?</p>
  
  <p>Please let me know if you have any question or concerns.</p>