CODEWITHSUNDEEP
iosstringreplace
woutr_be
woutr_be

Reputation: 9732

NSString stringByReplacingOccurrencesOfString fails

I'm trying to replace a string with another one by using stringByReplacingOccurrencesOfString, but for some reason it's giving me this error:

-[__NSCFNumber length]: unrecognized selector sent to instance 0x6e49ef0 2012-05-14 16:30:49.741 coop[78129:f803] * Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '-[__NSCFNumber length]: unrecognized selector sent to instance 0x6e49ef0'

NSString *_currentGroup;
NSString *location = [current objectForKey:@"location"];
if(_currentGroup != nil) 
{
    NSLog(@"_currentGroup: %@", _currentGroup);
    // OUTPUT: _currentGroup: 92

    location = [location stringByReplacingOccurrencesOfString:@"%group_id%" withString:_currentGroup];
}

When I try the following it just works

location = [location stringByReplacingOccurrencesOfString:@"%group_id%" withString:@"anyOtherString"];

Am I still missing something?

Upvotes: 0

Views: 1650

Answers (1)

user23743
user23743

Reputation:

Your "NSString" is actually an NSNumber. That's what the error is telling you.

Upvotes: 2

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