Getting “Cannot call a class as a function” in my React Project

Question

I\'m trying to add a React map component to my project but run into an error. I\'m using Fullstack React\'s blog post as a reference. I tracked down where the error gets thr

Answer 1

Happened to me because I used

PropTypes.arrayOf(SomeClass)

instead of

PropTypes.arrayOf(PropTypes.instanceOf(SomeClass))