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Asked: 2026-05-27T05:31:53+00:00

I found this article about parsing JSON response from a URL request i iOS:

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I found this article about parsing JSON response from a URL request i iOS: http://www.raywenderlich.com/2965/how-to-write-an-ios-app-that-uses-a-web-service.

The article uses JSON Framework. I’ve downloaded the newest “SBJson_v3.0.4.zip” from the webpage and dragged in into a new group in my project. But then the build returns 62 errors like:

  • ARC forbids explicit message send of ‘release’
  • Existing ivar ‘delegate’ for unsafe_unretained property ‘delegate’ must be __unsafe_unretained
  • ‘retain’ is unavailable: not available in automatic reference counting mode

Does anybody know why? Is the JSON Framework not compatible with the newest Xcode?

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1 Answer

  1. Editorial Team

    Since iOS 5, iOS has its own JSON parser (thank you Twitter!)

    NSError *err = nil;
id result = [NSJSONSerialization JSONObjectWithData:data options:0 error:&err];

    Do make sure to check the type of the output – it can be anything from a string to a number to a dictionary to an array.

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