Upgraded React - Lazy "ctor is not a function"

Question

I just upgraded React to 17 and I'm getting a weird error.

TypeError: ctor is not a function

My Lazy components get loaded like this

const Course = lazy(() => import('./containers/course'))
const Learner = lazy(() => import('./containers/learners'))
const Report = lazy(() => import('./containers/reports'))
const Home = lazy(() => import('./containers/home'))

Is this the problem!?

I've deleted node_modules etc so many times.

Answer 1

You'll have update react-dom to the same version, in my case had to update both react 17.0.2 and react-dom 17.0.0