Question

I have a app that receive a feed from a server through json.

I have been building it for iOS5, but in the last weeks testing with iOS6. I tested today with a iOS5 device, and everything crashed.

The code looks like this:

NSData *data = [NSData dataWithContentsOfURL:[NSURL URLWithString:@"http://www.myserver.com/news.json"]];
NSDictionary *json = [NSJSONSerialization JSONObjectWithData:data options:kNilOptions error:&error];

It worked without problems, but now it returns a null. The data is not null.

Answer 1

The issue was a duplicated key from the webserver. Now it works.

But it strange that the error is trigged in iOS5 and not in iOS6.