iPhone - copying a file from resources to Documents gives an error
<p>I am trying to copy an mp3 file from my Resources folder to a folder inside "Documents" folder of the app. On the simulator this works fine. But when I run it on a device, copying the files gives me this error</p>

<pre><code>Operation could not be completed. (Cocoa error 513.)
</code></pre>

<p>The source and destinations paths are fine but I still cannot copy the file. Any ideas? Where can I find out what the cocoa error code 513 means?</p>

<p>Thanks.</p>

<p>Here's the relevant source code</p>

<pre><code>    NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
    NSString *documentsDirectory = [paths objectAtIndex:0];

    NSString *folderPath = [documentsDirectory stringByAppendingPathComponent:@"Files"];

    NSString *insPath = [NSString stringWithFormat:@"%@.mp3", fileName];
    NSString *srcPath = [[[NSBundle mainBundle] resourcePath] stringByAppendingPathComponent:insPath];
    NSString *destPath = [folderPath stringByAppendingPathComponent:insPath];
    NSLog(@"Src: %@, Dest: %@", srcPath, destPath);

    NSError *err;
    [fileManager moveItemAtPath:srcPath toPath:destPath error:&amp;err];

    NSLog(@"Err desc-%@", [err localizedDescription]);
    NSLog(@"Err reason-%@", [err localizedFailureReason]);
</code></pre>

<p>Before making a call to moveItemAtPath, I am also creating the directory "Files" and it returns a YES.</p>

<p>Here's the log results</p>

<pre><code>Src: /var/mobile/Applications/512D7565-7EF7-4C13-A015-19EEC3F3B465/MyApp.app/MyFile.mp3, Dest: /var/mobile/Applications/512D7565-7EF7-4C13-A015-19EEC3F3B465/Documents/Files/MyFile.mp3

Err desc-Operation could not be completed. (Cocoa error 513.)
Err reason-(null)
</code></pre>

<p><strong>A question</strong></p>

<p>Is there a limit to the file size when copying data from resources to Documents folder? The file I am trying to copy is about 5MB. Could that be a reason?</p>
