I copied and pasted the example in the docs to start testing this and i'm getting this error :
Warning: Each child in an array or iterator should have a unique "key" prop. Check the render method of TableHeader. See https://fb.me/react-warning-keys for more information.

I tried setting the key value for the child components but nothing help.

EDIT : actually even the example in the website shows this error.