Fastlane + ReactNative 0.40 does not compile

Question

Since updating to React native 0.40 that now supported namespaces, my project will not compile.

So what was before:

#import "RCTEventEmitter.h"

is now:

#import <React/RCTEventEmitter.h>

How can I define this for Fastlane to compile?

Error:

 'React/RCTEventEmitter.h' file not found

#import <React/RCTEventEmitter.h>
        ^