Unrecognized selection error using NSJSONSerialization + AFNetworking

Question

Update: I just tested my JSON format returned from the server using JSONlint , and that's fine.

I get an exception from NSJSONSerialization in an AFNetworking call on a php script that returns JSON data. I looked at other issues here with the same problem and tried these solutions, but still getting the error.

Failure on this line:

 NSError *e = nil;
 NSMutableArray *jsonArray = 
 [NSJSONSerialization JSONObjectWithData: jsonData 
                                 options: NSJSONReadingMutableContainers 
                                   error: &e];

Error Log:

2012-03-19 18: 10: 41.291 imageUploader [3538: 207] * Application terminated due to an uncaught exception "NSInvalidArgumentException", reason: '- [__ NSCFArray bytes]: unrecognized selector sent to instance 0x6867430'

JSON, php script , :

[{ "" : "", "" : "Binky-0a96f9aab5267c8.jpg", "": "101" }, { "" : "", "" : "binky- 9cf844252c28553.jpg", "": "102" }, { "" : "", "" : "Binky-d6c749d25d33015.jpg", "": "103" }]

NSLog :

(         {         index = 101;         path = "binky-0a96f9aab5267c8.jpg";         user = binky;     },         {         index = 102;         path = "binky-9cf844252c28553.jpg";         user = binky;     },         {         index = 103;         path = "binky-d6c749d25d33015.jpg";         user = binky;     })

, , , JSON:

         if ([NSJSONSerialization isValidJSONObject: jsonData]){
             NSLog(@"Good JSON \n");
         }

, . ?

// AFNetworking + block

    AFJSONRequestOperation *operation = 
    [AFJSONRequestOperation JSONRequestOperationWithRequest:myRequest 
     success:^(NSURLRequest *request, NSHTTPURLResponse *response, id jsonData) {

         NSLog(@"Success JSON data:\n %@ \n", jsonData); //log data

         if ([NSJSONSerialization isValidJSONObject: jsonData]){
             NSLog(@"Good JSON \n");
         }

         NSError *e = nil;
         NSMutableArray *jsonArray = [NSJSONSerialization JSONObjectWithData: jsonData options: NSJSONReadingMutableContainers error: &e];

         if (!jsonArray) {
             NSLog(@"Error parsing JSON: %@", e);
         } else {
             for(NSDictionary *item in jsonArray) {
                 NSLog(@"Item: %@", item);
             }
         }

         [self.navigationController popToRootViewControllerAnimated:YES];
     } 
     failure:^(NSURLRequest *request, NSHTTPURLResponse *response, NSError *error, id JSON) {

         NSLog(@"Error: %@", error);
         [self.navigationController popToRootViewControllerAnimated:YES];
     }];

Answer 1

-, JSONObjectWithData NSData, . id jsonData , json. -, Array.

- .

 NSMutableArray *jsonArray = [NSJSONSerialization JSONObjectWithData: jsonData options: NSJSONReadingMutableContainers error: &e];

NSMutableArray *jsonArray = [NSMutableArray arrayWithArray:jsonData];

, :

NSArray *jsonArray = (NSArray *) jsonData;

, jsonData. json NSDictionary nil .