Undefined is not an object (evaluating '_react.PropTypes.bool')

i was updating my project from sdk 21 to 24 then i got that error, im not using "proptypes’ in my project before. and im not getting that error in previous version. what should i do?

react 16 removes React.PropTypes. some library that you are using uses that. see Expo SDK v22.0.0 is now available | by Brent Vatne | Exposition for info on proptypes removal