Hi! I am having a hard time with this JSON decode and optionals thing. I have this struct : var id: Int64? var title : String? var artist : String? var isOut : String? var label : String? var vinylAudoID : String? var vinylCountry : String? var vinylFormat : String? var vinylID : String? var vinylLocation : String? var year : String? } and here is my class to decode a local JSON File that is inside my project. @Published var vinyls = [Vinyl]() init() { loadData() } func loadData() { guard let url = Bundle.main.url(forResource: "vinyls", withExtension: "json") else { print("deu erro") return } let data = try? Data(contentsOf: url) let vinyls = try? JSONDecoder().decode([Vinyl].self, from: data!) self.vinyls = vinyls! } } here is my JSON file: "vinyls" : [ { "id" : 1, "title" : "I’m Missing You", "artist" : "Fabrica", "isOut" : "False", "label" : "Dance Pool", "vinylAudoID" : "00mwDSOTStNtIMRWIZPs", "vinylCountry" : "Italy", "vinylFormat" : "12", "vinylID" : "DAN6652126", "vinylLocation" : "LR25", "year" : "1997" }, { "id" : 2, "title" : "No More, Baby", "artist" : "Disco Blu", "isOut" : "False", "label" : "DJ Approved", "vinylAudoID" : "02Q6i5tJfUBNEXxanfMM", "vinylCountry" : "Italy", "vinylFormat" : "12", "vinylID" : "APP 9706", "vinylLocation" : "LR11", "year" : "1997" }, { "id" : 3, "title" : "Carramba", "artist" : "Arena Blanca", "isOut" : "False", "label" : "Outta Records", "vinylAudoID" : "02loclZIMqGHzIXI9Xo5", "vinylCountry" : "Italy", "vinylFormat" : "12", "vinylID" : "OTA696004", "vinylLocation" : "LR19", "year" : "1996" }] } and here is the error message: JSON_Parse__vinyl_/ReadData.swift:27: Fatal error: Unexpectedly found nil while unwrapping an Optional value what is wrong with my code? thank you very much!