The JKDictionary class is private to JSONKit and should not be used in this fashion
问题 This is a followup question to this In short, I'm making my app ios 4.3 compatible and using the AFNetworking class version 0.10.1 that supports ios 4 in my app. This line self.responseJSON = AFJSONDecode(self.responseData, &error); gives me the error bellow. I'm not really familiar with jason and trying to figure out what this error means. Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '*** - [JKDictionary allocWithZone:]: The JKDictionary class is private to