exception error with json in xcode

Question

I'm beginner in ios. I developing a call with JSON for access a data and insert after on UITableView. In this point on my code

    NSDictionary * dict = [[CJSONDeserializer deserializer ] deserialize:jsonData error:&error];

When compiling I obtained this error

2013-02-07 15:49:48.078 comercMobil[12933:c07] +[CJSONScanner scannerWithData:]: unrecognized selector sent to class 0xe7b8
2013-02-07 15:49:48.080 comercMobil[12933:c07] Exception +[CJSONScanner scannerWithData:]: unrecognized selector sent to class 0xe7b8

any suggestions? thanks for all

I would suggest moving your JSON parsing to Apple's NSJSONSerialization class. It looks like the library you are using is out of date and deprecated. — Sean
– Sean, Commented Feb 7, 2013 at 15:02
"When compiling I obtained this error" - I didn't know clang used CJSONDeserializer internally... — user529758
– user529758, Commented Feb 7, 2013 at 15:31
That error message is quite specific. Somewhere you invoked the method scannerWithData passing a "this" pointer that was a CJSONScanner object. And CJSONScanner does not implement scannerWithData. Find out where in your code you're invoking scannerWithData. (And, as others said, this is a runtime error, not a compile error.) — Hot Licks
– Hot Licks, Commented Feb 7, 2013 at 22:31

Rob · Accepted Answer · 2013-02-07 15:12:14Z

1

A couple of things:

This is not a compiler error, but rather a runtime error.
I don't think this is the line that's causing this error, since you're not calling scannerWithData here. I'd search your source for a reference to scannerWithData.

But, I agree with Sean that you should consider just using NSJSONSerialization.

NSDictionary *dict = [NSJSONSerialization JSONObjectWithData:data
                                                     options:0
                                                       error:&error];

Or, if you need support for iOS prior to version 5.0, SBJSON is very popular.

answered Feb 7, 2013 at 15:12

Rob

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