The object graph contains multiple references to an instance of type '{0}' and the serializer cannot find a commonly visible location to write the instance. You should examine your use of name scopes.
The object could not be added or attached because its EntityReference has an EntityKey property value that does not match ...
The object could not be added to the bound collection. The specific EntitySet for the object of type '{0}' could not be determined. ...
The object could not be added to the EntityCollection or EntityReference. An object that is attached to an ObjectContext ...
The object could not be removed from the EntityCollection or EntityReference. An object that is attached to an ObjectContext ...
The object graph contains multiple references to an instance of type '{0}' and the serializer cannot find a commonly visible ...
The object in the '{0}' role cannot be automatically added to the context because it was retrieved using the NoTracking merge ...
The object in the ObjectContext is of type '{0}', but the modified object provided is of type '{1}'. The two objects must ...
The object is in a detached state. This operation cannot be performed on an ObjectStateEntry when the object is detached. ...
The object returned from InvokeConstructor cannot be null, must match the serialization model of the type, and must derive ...