rcase-NSCompat.2: Error for the particle whose {term} is the element declaration 'aa....aa'. Its occurrence range, (bb....bb,cc....cc), is not a valid restriction of the range, (dd....dd, ee....ee), of the corresponding particle in the base type.

This is an error for a particle in which the item is the element declaration aa....aa. The occurrence range (bb....bb, cc....cc) is an invalid restriction of the occurrence range (dd....dd, ee....ee) of the corresponding particle in the base type.