Cannot read property 'string' of undefined

[WayneUong]

LayoutPropTypes.js:35:26
Only with react 16.0.0-alpha.13

[gibson]

And you think this is bag report? With react alpha version? You are crazy.

[WayneUong]

We all know why the error happens. Just pushing for the prop-type package.

[RaphArbuz]

Same thing with react 16.0.0-alpha.12. If you know why the error happens could you please let us know?

[pull-bot]

Hi there! This issue is being closed because it has been inactive for a while. Maybe the issue has been fixed in a recent release, or perhaps it is not affecting a lot of people. Either way, we're automatically closing issues after a period of inactivity. Please do not take it personally!

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