ios-starter/objc-starter/AppQualityObjC/AQViewController.m [37:48]:
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  NSError *fileReadError;
  NSString *contents = [NSString stringWithContentsOfFile:fileName
                                                 encoding:NSUTF8StringEncoding
                                                    error:&fileReadError];

  if (fileReadError != nil) {
    NSLog(@"Log file doesn't exist yet %@: %@", fileName, fileReadError);
  }

  NSUInteger fileLength = 0;
  if (contents) {
    fileLength = contents.length;
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ios/objc/AppQualityObjC/AQViewController.m [40:51]:
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  NSError *fileReadError;
  NSString *contents = [NSString stringWithContentsOfFile:fileName
                                                 encoding:NSUTF8StringEncoding
                                                    error:&fileReadError];

  if (fileReadError != nil) {
    NSLog(@"Log file doesn't exist yet %@: %@", fileName, fileReadError);
  }

  NSUInteger fileLength = 0;
  if (contents) {
    fileLength = contents.length;
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