I am trying to deserialize "SomeClass" with an older version of an application. I get this below exception
System.Runtime.Serialization.SerializationException: The ObjectManager found an invalid number of fixups. This usually indicates a problem in the Formatter.
Deserialization throws exception when I serialize version 0.9 and try to deserialize using version 0.8. I thought the OptionalField
attribute would do the trick, but it didn't.
// Version 0.8
[Serializable()]
class Foo{
Bar b;
}
// Version 0.9
[Serializable()]
class Foo{
Bar b;
[OptionalField]
Zoo z;
}
Given that I cannot change version 0.8, how should I add more state to Foo object such that previous versions can deserialize whatever they can?
Any pointer will be really appreciated.
Update 1 Bar and Zoo are other classes which are serializable and contains Hashtables and other serializable stuff. Everything is serializable in those classes. Also, I don't have any struts.
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