Webstorm - Can't resolve React?

I beign to use React with Browserify recently. But it seems that Webstorm can't resolve React module.
Screen Shot 2014-08-14 at 16.04.07.png

This is the react.js. It just refers to the real module. Does this relate to the issue?
Screen Shot 2014-08-14 at 16.10.48.png

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