[agent setValue:[NSSet setWithObjects:@"application/json", @"text/plain", @"text/javascript", @"text/json",@"text/html", nil] forKeyPath:@"jsonResponseSerializer.acceptableContentTypes"];
[agent setValue:[AFHTTPResponseSerializer serializer] forKeyPath:@"_manager.responseSerializer"];
并没有解决问题，报了另外一个错误，楼主有没有遇到过
YTKNetwork猿题库的配置文件设置 //AFNet支持text. YTKNetworkAgent *agent = [YTKNetworkAgent sharedInstance];[ag...
