无法将'Swift.Array <（Swift.String，Swift.String）>'类型的值转换为'Swift.AnyObject'

My swift code look like below

我的快速代码如下所示

Family.arrayTuple:[(String,String)]? = []
Family.arrayTupleStorage:String?
Family.arrayTupleStorage:String = (newDir! as NSString).stringByAppendingPathComponent("arrayTuple.archive")
NSKeyedArchiver.archiveRootObject(Family.arrayTuple! as! AnyObject, toFile: Family.arrayTupleStorage!)
Fa