IOS: Converting NSDate to NSString gives nil value -


where mistake? have nsdate format (data: 14/05/2013 10:52:27) , have obtain nsstring.

   nslog(@"data: %@",lettureobj.data);     nsdateformatter *outputdateformatter = [[nsdateformatter alloc] init];    [outputdateformatter setdateformat:@"dd/mm/yyyy hh:mm:ss"];    nsstring *data  = [outputdateformatter stringfromdate:lettureobj.data];

the problem here lettureobj.data nsstring , need convert date primarly have nsdate object


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