C# 4.0/EF - Server-generated keys and server-generated values are not supported by SQL Server Compact

Question

I have just moved one of my projects into VS2010/fx4.0 and am using a SQL CE database as the backing store. Since moving it to this version of .NET I am now getting this er

Answer 1

The important thing to check is the EDMX file and make sure this property/column doesn't have a StoreGeneratedPattern of identity in there.