Build error when using VS 11, .NET 4.5 and Entity Framework

Question

In Visual Studio 2010, my solution was using .NET 4.2 (Entity Framework June 2011 CTP) so I could use spatial types in Entity Framework. When I upgraded to Visual Studio 11 Beta, it wouldn't build because of conflicts between the 4.2 and 4.5 framework so I uninstalled 4.2. Now I get this error when I build:

Error 209: Currently, spatial types are only supported when used in CSDL files that have the UseStrongSpatialTypes annotation with a false value on their root Schema element.

Anyone know what this means and what I can do about it? Google yields literally zero results ...

Acus

Is your project targeted to .NET 4.5? – Roehm

Answer 1

Manually editing the .edmx file worked for me. Open the file in text or XML editor(you can right click and open with...)

Go to Schema node in ConceptualModels and change this:

<edmx:ConceptualModels>
    <Schema Namespace="MyDataModel" Alias="Self" xmlns="http://schemas.microsoft.com/ado/2009/11/edm">
    ...

to add the attribute, like so:

<edmx:ConceptualModels>
  <Schema Namespace="MyDataModel" Alias="Self" xmlns="http://schemas.microsoft.com/ado/2009/11/edm"  xmlns:annotation="http://schemas.microsoft.com/ado/2009/02/edm/annotation" annotation:UseStrongSpatialTypes="false">

It is quite annoying this attribute is not editable.

News

Answer 2

Set UseStrongSpatialTypes to false in the root properties in the EF designer window.

Albertoalberts

Thank you for paraphrasing the error message. Clearly I don't understand what this means or where to find the UseStrongSpatialTypes setting. If I did, I wouldn't have to ask Stack Overflow. – Acus

@RaySaltrelli: It's in the entity designer properties window if you click the document background – Albertoalberts

That particular property is read-only in the Properties panel. Is there a different way to edit it? Am I supposed to be able to edit it? – Acus

It's writable for me; I'm not sure why it would be read-only. – Albertoalberts

Well at least now I know where the setting is. If you modify your answer it'll let me change my vote. I'll remove the down vote. – Acus