AF解析json出错：

Error Domain=NSCocoaErrorDomain Code=3840 "The operation couldn’t be completed. (Cocoa error 3840.)" (JSON text did not start with array or object and option to allow fragments not set.) UserInfo=0x8a8a700 {NSDebugDescription=JSON text did not start with array or object and option to allow fragments not set.}

 可打印 NSLog(@"operation: %@", operation.responseString); 服务端返回的结果看看哪里错了 

    [client getPath:nilparameters:nil success:^(AFHTTPRequestOperation *operation,id responseObject)

     {

         NSError *error;

         NSDictionary *dict = [NSJSONSerializationJSONObjectWithData:responseObject options:NSJSONReadingMutableLeaveserror:&error];

         NSLog(@"operation: %@", operation.responseString);

         if (success) {

             success(dict);

         }

     }

             failure:^(AFHTTPRequestOperation *operation,NSError *error)

     {

         NSLog(@"error description:%@",[errordescription]);

     }];

operation:          ??????{"Result":"1","name":"full","nick":"bfire","sex":"?￥3","email":"","mobi":"","area":"0401","address":"","like":"","photo":"http://weizhuhai.gotoip55.com/upload/member/photo/0/26.jpg","point":"0","coin":"0"}

可以注意到，Result前有串乱码：??????