ios7 - NSString converting to NSCFString -


मैंने NSString वर्ग की एक श्रेणी बनाई है, और मैं कुछ कस्टम NSString ऑपरेशन। मेरा NSString ऑब्जेक्ट NSCFString में परिवर्तित हो रहा है और कस्टम NSString विधि को कॉल करने पर इसकी क्रैशिंग है।

* बिना अपवाद अपवाद के कारण एपीआई को समाप्त करना 'NSInvalidArgumentException', कारण: '- [__ एनएससीएफ स्ट्रिंग स्ट्रिंगबैडलिंगलिंग और जोड़ना पहला स्लैश]: अपरिचित चयनकर्ता को उदाहरण के लिए भेजा गया 0xa6015e0'


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