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FSCopyObjectASync Not Calling Callback In Cocoa

I execute this code and it successfully copies my file from source to destination:

- (IBAction)startCopy:(id)sender;
{
    FSFileOperationRef fileOp = FSFileOperationCreate(NULL);

    FSRef source;
    FSRef destination;

FSPathMakeRef( (const UInt8 *)[[sourceFilePath stringValue] cStringUsingEncoding:NSUTF8StringEncoding], &source, NULL );
Boolean isDir = true;
FSPathMakeRef( (const UInt8 *)[[destinationFilePath stringValue] cStringUsingEncoding:NSUTF8StringEncoding], &destination, &isDir );


    OSStatus status = FSCopyObjectAsync (fileOp,
                                &source,
                                &destination,
                                NULL,
                                kFSFileOperationDefaultOptions,
                                statusCallback,
                                1.0,
                                NULL);

    CFRelease(fileOp);

    if( status )
        NSLog(@"Status: %@", status);
}


status returns with no error. However my callback never gets called. Here's the callback.

static void statusCallback (FSFileOperationRef fileOp,
                                  const FSRef *currentItem,
                                  FSFileOperationStage stage,
                                  OSStatus error,
                                  CFDictionaryRef statusDictionary,
                                  void *info
)
{
    NSLog(@"Callback got called.");
    if (statusDictionary)
    {
        CFNumberRef totalBytes, bytesCompleted;

bytesCompleted = (CFNumberRef) CFDictionaryGetValue(statusDictionary, kFSOperationBytesCompleteKey);
if (bytesCompleted)
{
fprintf(stderr, "\tbytesCompleted: ");
CFShow(bytesCompleted);
}

totalBytes = (CFNumberRef) CFDictionaryGetValue(statusDictionary, kFSOperationTotalBytesKey);
if (totalBytes)
{
fprintf(stderr, "\ttotalBytes: ");
CFShow(totalBytes);
}

    }
}


Any idea why?

Thanks.

-Matt
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