URLWithString returns nil for resource path - iphone

Having a problem getting the URL for a resource for some reason: This code is in viewDidLoad, and it's worked in other applications, but not here for some reason:

NSString* audioString = [[NSBundle mainBundle] pathForResource:@"sound" ofType:@"wav"];
NSLog(@"AUDIO STRING: %@" , audioString);

NSURL* audioURL = [NSURL URLWithString:audioString];
NSLog(@"AUDIO URL: %d" , audioURL);

NSError* playererror;
audioPlayer = [[AVAudioPlayer alloc] initWithContentsOfURL:audioURL error:&playererror];
[audioPlayer prepareToPlay];    

NSLog(@"Error %@", playererror);

LOG OUTPUT:

AUDIO STRING: /var/mobile/Applications/D9FA0569-45FF-4287-8448-7EA21E92EADC/SoundApp.app/sound.wav

AUDIO URL: 0

Error Error Domain=NSOSStatusErrorDomain Code=-5开发者_JAVA百科0 "Operation could not be completed. (OSStatus error -50.)"

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Your string has no protocol, so it's an invalid url. Try this...

NSString* expandedPath = [audioString stringByExpandingTildeInPath];
NSURL* audioUrl = [NSURL fileURLWithPath:expandedPath];

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Just change one line to this:

    NSURL* audioURL = [NSURL fileURLWithPath:audioString];

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You're passing audioURL in your NSLog method as %d hence why you get 0. If you pass it as an object with %@ you'll get NULL.

Try passing into the audioplayer like this and skip the string.

NSURL *fileURL = [[NSURL alloc] initFileURLWithPath: [[NSBundle mainBundle] pathForResource:@"sound" ofType:@"wav"]];

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You aren't reading the responses carefully enough - you are using URLWithString, when you should use fileURLWithPath. You can't pass a file:// path to URLWithString. I think you also need to prepend file:// at the front of the string as you have only a path (which as pointed out has no protocol).