{"id":"bug-ps-5-1-et-non-supportes-parsererror-20251019152554","title":"PS 5.1: ?. et ?? non supportes -\u003e ParserError","blocking":true,"workaround":"","note":"En PS 5.1, les operateurs ?. (null-conditional) et ?? (null-coalescing) ne sont pas pris en charge: ParserError. Corrections: remplacer par if/else, verifs explicites ($obj -and $obj.Prop), helpers (TryGet), et bannir ?. / ?? dans les scripts PS5.1.","fix":"","tags":["powershell","ps51","parser","compatibility","null-conditional","null-coalescing"],"seen_in_threads":[],"last_seen":"2025-10-19T15:25:54+02:00"}