ORA-22975: cannot create a PRIMARY KEY-based

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ORA-22975: cannot create a PRIMARY KEY-based REF to this object view
Cause: The object viewspecified in the MAKE_REF function does not have a
PRIMARY KEY-based object identifier. A PRIMARY KEY-based REF cannot be
created for such a view.
Action: Specify an objectview that has a PRIMARY KEY-based object identifier in
the MAKE_REF function.