NSUInteger incompatible with NSUInteger?

Question

index is a NSUInteger on both my parent and child view controller. But when I try to pass the NSUInteger value for index I get a warning on this line: controller.index = index; saying "incompatible integer to pointer conversion assigning to NSUInteger from NSUInteger" and tells me to fix-it with &(index). But when I convert it to &(index) I no longer get a number value from index. What am I doing wrong? (new to programming) thanks!

- (PhotoViewController *)viewControllerAtIndex:(NSUInteger)index storyboard:(UIStoryboard *)storyboard
{
    self.image = [self photoAtIndex:index];

    if (self.image == nil) {
        return nil;
    }
    PhotoViewController *controller = [storyboard instantiateViewControllerWithIdentifier:@"PhotoViewController"];

    controller.image = self.image;
    controller.index = index;

    return controller;
}

Answer 1

You probably declared your index property in your PhotoViewController class as NSUInteger *index instead of just NSUInteger index. Get rid of the asterisk.