undefined is not an object (evaluating 'RCTDataManager.queryData') - Facebook React Native iOS -

when have error in javascript (i see red screen). see message on , on again in console.

#clowntown (error while displaying error): undefined not object (evaluating 'rctdatamanager.querydata')

i see message undefined not object (evaluating 'rctdatamanager.querydata') if try use fetch function

you have include rctnetwork module in project. can adding following line podfile:

pod 'react/rctnetwork'