Resolution:
Correct the code to specify a valid parameter with the method.
Example:
The following example shows invalid use of the U parameter with in the method:
       class-id GenericClass using T.
       method-id M2 using U (parm as U).
       constraints.
           constrain T is reference type.
       end method.
       end class.
       class-id A.
       end class.
       class-id B.
       end class.