there is an error in the web inspector and i can't add any cfg in the index.jsx cuz it's in no use

[aws0me]

Warning: Each child in an array or iterator should have a unique "key" prop.

Check the top-level render call using

. See https://fb.me/react-warning-keys for more information.
in div

[roele]

Can you confirm the version (e.g. 2.0.0) you're using and elaborate on the issues with the configuration?

[roele]

I'm unable to reproduce this issue with not further information, hence closing.