Not working in rn 0.28

[npomfret]

I'm getting the following error and no images are appearing:

index.ios.bundle:22968Warning: ParallaxScrollViewComposition:refis not a prop. Trying to access it will result inundefinedbeing returned. If you need to access the same value within the child component, you should pass it as a different prop. (https://fb.me/react-special-props)

Using

    "react": "15.1.0",
    "react-native": "0.28.0",

What does it mean??