The requested module does not provide an export named

October 05, 2023

I've been working on a project using Inertia and Vue. One of the things I was doing was to share a property from Laravel to Vue. I made a costly mistake of naming my variable uppercase on Laravel.

return Inertia::render('Users', [
    'MyProperty' => 'MyPropertyValue'

In order to work with this property, I defined an interface on Typescript and called the defineProps method on my Vue component

export interface User {
    MyProperty: string;
import {User} from '/my/path/to/user';

<script setup lang="ts">
const props = defineProps<User>();

This property totally works fine. It gets super annoying when you try to pass this property down to a underlying component. I was doing something like this:

        <MyComponent :some-prop="props.MyProperty" />

As soon as you do this, you get the following error:

Uncaught (in promise) SyntaxError: The requested module '...' does not provide an export named 'User' (at ....)

What is super annoying about this is that it crashes at the interface definition. No matter how much you dig around, you keep looking at the inevitable fact that

  1. the interface exists
  2. it is being exported
  3. the path is correctly imported.

It makes you doubt your sanity a little bit, which is why I decided to write this post. This edge-case comes from the fact that folks working with Vue will know better not to name their properties in a way that is incompatible with HTML and Javascript simultaneously as it is documented here: The problem becomes more challenging when we throw Inertia into the mix because sharing data from Laravel to Vue with Inertia will work fine with a PascalCase property name. It is only when you try to define this on a Typescript interface and pass it down to a child component that it breaks in such an unexpected way.

Hope you enjoyed the reading. If you're interested in more of my crazy ideas, follow me on Twitter.