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THE PROBLEM WorldCreator creates dynamic types for used within Xaf. It is doing that by compiling code templates at WorldCreator module setup method. To find those templates it has to query a persistent datastore using XPO. Now when you create a new XPO session it will check if all object types that XPObjectType table contains if are valid. So if you have used customizedtypesinfo to create runtime associations since it is called after module setup it will throw an exception complaining for invalid tables. Saying the above you understand that there is no way to open a connection to an XPO database that has records for objects with associations that have not fully defined. THE SOLUTION [ AttributeUsage ( AttributeTargets .Assembly,AllowMultiple = true )]
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