Icloud 查询结果 EXC_BAD_INSTRUCTION 错误

Question

为了学习一些 CloudKit 基础知识，我正在构建一个允许用户 post 提问并接收 "Up Vote" 或 "Down Vote" 的应用程序。该应用程序运行良好，直到我添加一个条目然后重新加载。为什么我在尝试将向上或向下值添加到数组时收到错误 EXC_BAD_INSTRUCTION(code=EXC_1386_INVOP, subcode=0x0)？

        self.pred = NSPredicate(format: "TRUEPREDICATE")
        let query = CKQuery(recordType: "Questions", predicate: NSPredicate(value: true))
        self.queryOperation = CKQueryOperation (query: query)
        self.queryOperation.recordFetchedBlock = {
            record in

            self.recArray.append(record.objectForKey("Question") as! String)
            self.recIdArray.append(record.recordID)

            //Gives me the correct value
            print(record.objectForKey("Up") as! Int64)

            //Errors on these 2 lines
            self.upArray.append(record.objectForKey("Up") as! Int64)
            self.downArray.append(record.objectForKey("Down") as! Int64)

        }

Answer 1

我通过更改我的数组声明来修复它：变种 upArray = Int64 var downArray = Int64 到： var upArray = AnyObject var downArray = AnyObject

希望这对其他人也有帮助

Icloud 查询结果 EXC_BAD_INSTRUCTION 错误

Icloud query results in EXC_BAD_INSTRUCTION error

swift

cloudkit