问中的NSArray元素未能匹配Swift数组元素类型

EN

Alamofire.request(.GET, "http://server.com/api/get/all", headers: getAuthenticationHeaders()).
validate().
responseArray { (response: Result<[MyPrimaryObject], NSError>) in
       if(response.isSuccess){
           print(response.debugDescription)
           success(response.value)
       }
       if(response.isFailure){
           let error : NSError = response.error!
           NSLog("API failure: \(error.debugDescription)")
           failure(error)
       }
   }

public class MyPrimaryObject : EVObject{

    public var myPrimaryObjectId : NSUUID?
    public var name : String = ""
    public var myObjectDescription: String?

    public var numberOfOccurrences : Int = 0
    public var positiveResponsePercentage : Float = 0

    public var secondaryObjects : [MySecondaryObject]?

    override public func propertyMapping() -> [(String?, String?)] {
        return [("myObjectDescription","Description")]

    }
}

public class MySecondaryObject : EVObject {
    public var mySecondaryObjectId : Int = 0
    public var dateRecorded : NSDate?
    public var rating : Int = 0
    public var userRemarks : String?
}