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|||||
The current pattern contains an invalid occurrence count.
Additional Information
Repetition is not allowed over a sub-pattern that contains a pattern-save.
Explanation
Patterns of the form (... P = V ...){M} and (... P = V ...){M to N} are allowed if the value of M and/or N is unknown at compile-time. If at run-time the value is greater than 1 this error is emitted and the system stops.