UITableView with JSON Error -

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The one app I have is using JSON and UITableView.
when I try to make your app / run, it says: not known class method selector 'JSONRequestOperationWithRequest: Success: Failure

This is my code : Error
48 is on error

Greetings Rick

It looks like an older representatives on the new version of the API are trying to:

a content negotiations and its new structure for the serialization of the most important changes in the AF 2.0. First, response validation and serialization was handed with Afactiteepiariakvest Oprekshn and its subclasses, including set-Kanplimentblokvithswvs failure and the material-specific logic with the specific material applied to other properties. In 2.0, all of this logic is explained in a serializer object that corresponds to AFURLResponseSerialization .

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