Version 2.3 of the JSON framework (http://code.google.com/p/json-framework/) is included with the ArcGIS library. Before ArcGIS API for iOS v1.0, the JSON headers were not made public by the ArcGIS library. But now they are. So all you need to do is remove the additional JSON library from your project. As long as you are referencing the ArcGIS library, you will have access to the JSON classes. it works, thx 🙂
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