Does not works with React 16.x.x because PropTypes has been removed from React 16 above.

[nuhbye]

Here is the link to more info: https://reactjs.org/warnings/dont-call-proptypes.html

[hironarita]

There's a pending pull request to fix this issue #56

[kylegoetz]

I suppose it's never getting fixed.

[siva-444]

try that
import PropTypes from 'prop-types';