Skip to content

React, how to fix the TypeError: resolver is not a function error

I ran into this rather puzzling message while working on a Next.js/React app:

TypeError: resolver is not a function

Turned out the solution was very simple.

I was doing some editing and I commented out the default export to component of the API call I was editing:

export default <name>

So, make sure you have a default export and the error will go away.


→ Here's my latest YouTube video

→ Get my React Beginner's Handbook

→ I wrote 17 books to help you become a better developer, download them all at $0 cost by joining my newsletter

JOIN MY CODING BOOTCAMP, an amazing cohort course that will be a huge step up in your coding career - covering React, Next.js - next edition February 2025

Bootcamp 2025

Join the waiting list