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4966787
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2011-02-11T08:00:59.967
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2011-02-11T08:09:04.783
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2011-02-11T08:09:04.783
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Some SDK Version ago (I don't know for sure when they did) apple changed the return type of <code>applicationDocumentsDirectory</code> in their project templates. When you create a new project it looks like this: <pre><code>/** Returns the URL to the application's Documents directory. */ - (NSURL *)applicationDocumentsDirectory { return [[[NSFileManager defaultManager] URLsForDirectory:NSDocumentDirectory inDomains:NSUserDomainMask] lastObject]; } </code></pre> in older templates it looked like this: <pre><code>/** Returns the path to the application's documents directory. */ - (NSString *)applicationDocumentsDirectory { NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES); NSString *basePath = ([paths count] > 0) ? [paths objectAtIndex:0] : nil; return basePath; } </code></pre> and in between those two it looked like this: <pre><code>/** Returns the path to the application's Documents directory. */ - (NSString *)applicationDocumentsDirectory { return [NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES) lastObject]; } </code></pre> So you have to be careful, because all the old code that relies on applicationDocumentsDirectory returning a NSString won't work with newer templates. And you can't just replace the new version with the older version because this would result in a change in your core data methods. So I would suggest you to write your own method for returning the documents directory. Apple changes their <code>applicationDocumentsDirectory</code> quite often. 
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1. POcoredata problem nsurl may not respond to stringByAppendingPathComponent
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1. PTAnswer
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1. USMatthias Bauch
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1. USMatthias Bauch
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1. POcoredata problem nsurl may not respond to stringByAppendingPathComponent
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